ETC ONSEMI(安森美)固态照明选型指南(2012.3)

Table of Contents
INTRODUCTION
AC-DC
LED Technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Driver Solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
PORTABLES
Low-Voltage Portable LED Driver Topologies . . . . . . . . . . . . . . . . . . . . . . . . . . .
Charge Pump Topology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inductive Boost and Buck Topology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Linear Topology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Camera Flash and Torch Light-Dedicated LED Drivers . . . . . . . . . . . . . . . . . . . .
Multifunction LED Drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RGB Illumination Drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4
5
7
8
9
10
10
ADDRESSABLE SIGNAGE
Intelligent LED Control for Signage and Architectural Lighting . . . . . . . . . . . . . .
8 and 16 Channel Constant Current LED Sink Drivers . . . . . . . . . . . . . . . . . . . .
3-Channel Cascade-Capable Driver — CAT4103 . . . . . . . . . . . . . . . . . . . . . . . .
16-Channel LED Indicator Driver and Port Expander — CAT9532 & CAT9552 . . .
11
11
12
13
MID-VOLTAGE
General Lighting
Mid-Voltage LED Driver Topologies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Linear LED Driver Solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Constant Current Regulator (CCRs) for Displays and Channel Letters . . . . . . . .
Switching Driver Solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LED MR16 Light Bulb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Solar-Powered LED Street Sign . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12 V AC-DC Design for 3 and 4 LED Modules . . . . . . . . . . . . . . . . . . . . . . . . . .
14
15
16
17
18
18
19
Automotive
Automotive Lighting Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Front Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Leveling and Swiveling for Front Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Power Ballast and Dual LED Driver for Advanced LED Front Lighting Systems . . . 22
Linear Current Regulator and Controller for Automotive LED Rear
Combination Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Automotive LIN RGB LED Driver for Interior Lighting . . . . . . . . . . . . . . . . . . . . 24
Constant Current Regulators for Automotive Exterior and Interior Lighting . . . . . 25
Compact 350 mA Buck LED Driver — CAV4201 & CAT4201 . . . . . . . . . . . . . . . . 26
Multi-Topology, Constant Current Switching Regulator for
High Brightness LEDs — NCV3065 & NCV3066 . . . . . . . . . . . . . . . . . . . . . . . . . 26
Page 2
AC Line Powered LED Driver Topologies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Non Isolated Linear LED Driver Topology – CCRs . . . . . . . . . . . . . . . . . . . . . . . . 28
Low Current LED String Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Low Cost T5 LED Tube . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Switching Regulators for AC-DC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Up to 8 W LED Driver Ref Design for ENERGY STAR® Residential Lighting . . . . . . 29
Switching Controllers for AC-DC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Non-Isolated 25 W High Power Factor Buck-Boost LED Driver . . . . . . . . . . . . . . 31
Non-Isolated Offline Buck Controller — LV5026 . . . . . . . . . . . . . . . . . . . . . . . . 31
Power Factor Correction for AC-DC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Constant Current, Constant Voltage References . . . . . . . . . . . . . . . . . . . . . . . . 32
Line Dimmable PAR30 LED Lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
LED Power Supply for Street and Area Lighting . . . . . . . . . . . . . . . . . . . . . . . . . 34
BACKLIGHTING
Medium to Large LCD Panel Backlighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6-Channel LED Controller for Large Panel LED Backlighting — CAT4026 . . . . . .
Highly Integrated LED Backlight Controller, Boost Converter — CAT4106 . . . . . .
High Voltage LED Driver — NCP1294 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
35
36
37
38
COMMUNICATION & SENSING
Smart Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Powerline Communication (PLC) Modems . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
KNX Transceivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Motion Detector Passive Infrared Controller (PIR) — NCS36000 . . . . . . . . . . . 42
Ambient Light & Proximity Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
PROTECTION
LED String Protection — NUD4700 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
In-Module ESD Protection of High Brightness LEDs . . . . . . . . . . . . . . . . . . . . . 45
In-Module TVS Solutions for HBLED Protection . . . . . . . . . . . . . . . . . . . . . . . . . 46
LED LIGHTING SUPPORT AT www.onsemi.com
www.onsemi.com/led . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
GreenPoint® Design Simulation Tool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Sales and Design Assistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
LED Lighting Solutions
INTRODUCTION
LED Technology
As the technology and light output of LEDs continues to
improve, applications for color and white high-brightness
LEDs are expanding into entirely new markets. Once
primarily used as indicators, LED cost and performance
levels have improved dramatically, allowing them to displace
incandescent and fluorescent light sources in automotive
applications, consumer electronics ranging from cellphones
to LCD-TVs, architectural lighting, and general lighting. Over
the next few years, LEDs will continue to transform the
lighting marketplace with new and innovative solid state
lighting (SSL) solutions that can take advantage of both
their programmability and flexibility.
This requires power conversion and control solutions to
interface to the various power sources, be it the AC line, a
solar panel, a 12 V car battery, a DC power supply or low
voltage AC system or even primary Alkaline and Ni-based
cells or rechargeable Li-Ion battery cells.
ON Semiconductor has focused on applying our low voltage
and high voltage technologies and our expertise in power
management solutions to the challenges of solid state
lighting; whether in portable display products, interior
automotive lighting, or ballast for LED signage. In the
following pages, examples will be provided for a number of
different applications of solid state lighting for architectural,
industrial, automotive and portable applications.
Driver Solutions
LEDs are inherently low voltage devices and depending on the
color and current, the forward voltage of the LED can vary from
less than 2 to 4.5 V. In addition LEDs need to be driven with
a constant current to ensure the intensity and color desired.
ON Semiconductor
Page 3
Low-Voltage Portable LED Driver Topologies
White LED and RGB tricolor LEDs are widely used for backlighting
small color LCD panels and keyboards, as well as indicators. High
brightness LEDs are used as flash light sources in cell phones and
digital cameras. These applications require optimized solutions
which can maximize battery lifetime, as well as minimize the PCB
area and height. ON Semiconductor has a variety of solutions
L
VIN
2.5 to 5.5 V
C1
2.2 μF
10 μH
VIN
using linear, inductive, and charge pump topologies. The inductive
solution offers the best overall efficiency, while the charge pump
solution takes up a minimal amount of space and height due to
the use of low profile ceramic capacitors as the energy transfer
mechanism. Linear drivers are ideal for color indicator as well as
simple backlighting applications.
1 µF
D
C2
0.22 μF
CAT4157*
1-Wire EZDim™
Programming
EN/DIM LED
GND
1-Wire Programming
VOUT
VIN
1 µF
6 LEDs
1 µF
C1+ C1– C2+ C2–
VIN
SW
23.7 kΩ
Inductive Boost Topology
1 µF
CAT3648
EN/DIM
RSET
GND
LED1
LED2
LED3
LED4
20 mA
Charge Pump Topology
LED4
Undervoltage
Lockout
LED3
VIN
LED2
VIN
LED1
PORTABLES
PORTABLES
Reference
Voltage
RSET
EN/DIM
Current
Setting DAC
Serial
Interface
Register
4 Current Sink
Regulators
CAT4004A
GND
Linear Topology
* Pending 2H12.
Page 4
LED Lighting Solutions
PORTABLES
Charge Pump Topology
Patented Quad-Mode® adaptive fractional charge pumps take
LED driver performance to a new level by offering a 10% efficiency
improvement and up to 65% smaller packaging, without the need for
an additional capacitor.
Quad-Mode LED drivers deliver the high efficiency levels normally
associated with inductor-based LED drivers, while eliminating the
associated high-profile inductors and unwanted EMI. Most charge
pump LED drivers offer three modes of operation corresponding to
the ratio of the output voltage to the input voltage: 1x, 1.5x and 2x.
The Quad-Mode architecture adds a fourth mode of operation, 1.33x,
without the need for the additional capacitor required by all other
four-mode charge pumps.
Features
• 4 charge pump modes: 1x, 1.33x, 1.5x, 2x
• 10% higher efficiency versus 3-mode charge pumps
• No additional capacitors
• No inductor
Charge Pump/White and RGB LED Drivers — for LCD Backlight, LED Flash/Torch and Indicator
Device
Input
Voltage
Range
(V)
Number
of
Outputs
Total
Output
Current
(mA)
LED-LED
Charge Pump Current
Regulation Operating Matching,
Mode
Mode
Typ
NCP1840
3.0 - 5.5
8
240
CAT3606
2.7 - 5.5
6
CAT3616
2.7 - 5.5
CAT3626
Dimming
Method
Current
1x / 1.33x /
1.5x / 2x
±2%
I2C
32/ log
2.3
0.12
180
Current
1x / 1.5x
±1.5%
PWM
1
1 max
TQFN–16 •Backlight
6
186
Current
1x / 1.5x
±3%
Single Wire
0.5
1 max
TQFN–16 •Backlight
2.7 - 5.5
6
192
Current
1x / 1.5x
±3%
I2C
Depends on
System
32
Depends on
System
0.5
1 max
TQFN–16 •Backlight
CAT3636
2.2 - 5.5
6
192
Current
±1%
Single Wire
32
0.5
1 max
TQFN–16 •Backlight
CAT3637
2.2 - 5.5
6
192
Current
±1%
Single Wire
16
0.5
1 max
TQFN–16 •Backlight
CAT3649
2.4 - 5.5
6
150
Current
1x / 1.33x /
1.5x / 2x
1x / 1.33x /
1.5x / 2x
1x / 1.33x /
1.5x / 2x
±1.5%
Single Wire
& PWM
32
1.4
1 max
TQFN–16 •Backlight
CAT3604A
2.7 - 5.5
4
120
Current
1x / 1.5x
±3%
PWM
0.3
0.05 typ
TQFN–16 •Backlight
CAT3604V
2.7 - 5.5
4
120
Current
±1.5%
PWM
1
1 max
TQFN–16 •Backlight
CAT3614
2.7 - 5.5
4
124
Current
±3%
Single Wire
0.5
1 max
TDFN–12 •Backlight
CAT3644
2.2 - 5.5
4
100
Current
±1.5%
Single Wire
6
1
1 max
TQFN–16 •Backlight
CAT3648
2.2 - 5.5
4
100
Current
1x / 1.33x /
1.5x / 2x
1x / 1.5x
1x / 1.33x /
1.5x / 2x
1x / 1.33x /
1.5x / 2x
Depends on
System
Depends on
System
32
±1.5%
Single Wire
32
1
1 max
TQFN–16 •Backlight
3
3
Operating
Number of
Quiescent
Current Level/ Current, Typ
Profile
(mA)
Shutdown
Current
(mA)
NCP5623B/C
2.7 - 5.5 (Independent)
90
Current
1X, 2X
±0.5%
I2C
32/ quasi-log
0.35
0.8 typ
CAT3643
2.2 - 5.5
90
Current
1x / 1.33x /
1.5x / 2x
±1.5%
Single Wire
6
1
1 max
ON Semiconductor
Package
Notes
•Indicator application
•Individual PWM programma bility per channel; 64 different
QFN-20 PWM duty cycle settings
•Individual current level
programmability (32 levels)
per channel
•RGB illumination
•Backlight
LLGA-12 •Built-in “gradual illumination”
•B & C versions have different
I2C addresses
TDFN-12, •Backlight
TQFN-16
Page 5
Charge Pump/White and RGB LED Drivers — for LCD Backlight, LED Flash/Torch and Indicator (cont.)
PORTABLES
Input
Voltage
Range
(V)
Number
of
Outputs
Total
Output
Current
(mA)
CAT3647
2.2 - 5.5
3
100
CAT3612
3.0 - 5.5
2
CAT3224
2.0 - 5.5
2
300
4 A Flash,
400 mA
Torch
NCP5612
2.7 - 5.5
2
CAT3661
2.0 - 5.5
NCP5603
Device
LED-LED
Charge Pump Current
Regulation Operating Matching,
Mode
Mode
Typ
1x
/
1.33x
/
Current
±1.5%
1.5x / 2x
Current
1x / 1.5x
±3%
Dimming
Method
Operating
Number of
Quiescent
Current Level/ Current, Typ
Profile
(mA)
Shutdown
Current,
(mA)
Notes
Single Wire
32
1
1 max
TQFN–16 •Backlight
Single Wire
32
0.5
1 max
TDFN–12 •F lash/Torch
TQFN-16 •F lash/Torch
Current
1x / 2x
—
—
—
6
1 max
60
Current
1X, 1.5X
±0.2%
S-Wire Link
(Single Wire
Serial Link)
16/ linear
0.6
1
1
10
Current
1x / 1.33x /
1.5x / 2x
—
—
—
0.13
1 max
2.85 5.5
1
200 mA DC,
350 mA
pulse
Voltage
1X, 1.5X, 2X
—
PWM
Depends on
system
1
2.5 typ
CAT3200
2.7 - 4.5
1
100
Voltage
2X
—
PWM
Depends on
system
1.7
1 typ
CAT3200H
2.7 - 4.5
1
100
Voltage
2X
—
PWM
Depends on
system
1.7
1 typ
Page 6
Package
•Built-in “icon” dimming mode
LLGA-12 •OVP
•Short circuit protection
•Built-in “icon” dimming mode
TQFN–16 •Optimized for coin cell
applications
•Backlight
DFN-10 •4.5 / 5 V output
•Short circuit protection
•Backlight
2 MHz switching
TSOT-23-6 •
•Soft-start
•Thermal shutdown
•Backlight
•2 MHz switching
Soft-start
UDFN-8 •
•Thermal shutdown
•F ixed Vout = 5 V and
adjustable output
LED Lighting Solutions
PORTABLES
Inductive Boost and Buck Topology
Inductive-Boost White-LED Drivers — for Backlighting and Torch/Flash Applications
Device
Input
Voltage
Range
(V)
Max
Output
Volt, Typ
(V)
Output
Current
(mA)
Condition
Number of LEDs/
Configuration
Switching Mode/ Dimming
Frequency
Method
Efficiency
(%)
Operating
Quiescent Shutdown
Current, Typ Current, Typ
(mA)
(mA)
Package
Notes
•Flash/Torch
•Internal synchronous
rectification
1.0 - 5.0
5
800
Vout 3.3 V,
Vin 2.5 V
1 for flash
PFM,
up to 1.2 MHz
PWM
94
1.3 µA
0.05
DFN-10
CAT37
2.5 - 7
20
20
Vout
=10.8 V
1 to 4 / Series
1.2 MHz
PWM
84
0.5
1
TSOT23–5
CAT32
2.0 - 7
20
20
Vout =14 V
1 to 4 / Series
1.2 MHz
PWM
84
0.5
0.05
CAT4137
2.2 - 5.5
24
40
Vout 17 V,
Vin 3.5
1 to 5 / Series
1 MHz
PWM
87
0.4
0.1
TSOT23–5
•Backlight
•Isw = 350 mA
CAT4139
2.0 - 5.5
24
50
Vout 14 V,
Vin 3.0
1 to 5 / Series
1 MHz
PWM
87
0.6
0.1
TSOT23–5
•Backlight
•Isw = 850 mA
NCP5005
2.7 - 5.5
24
40
Over 5 LED,
Vin 3.6 V
2 to 5/ series
PFM,
up to 2.25 MHz
PWM
90
—
0.3
TSOP-5
•Backlight
•Isw = 350 mA
CAT4237
2.0 - 5.5
34
30
Vout 30 V,
Vin 3.6
1 to 8 / Series
1 MHz
PWM
87
0.6
0.1
TSOT23–5
•Backlight
•Isw = 450 mA
CAT4238
2.0 - 5.5
38
20
Vout 33 V,
Vin 3.5
1 to 10 / Series
1 MHz
PWM
87
0.6
0.1
TSOT23–5
•Backlight
•Isw = 450 mA
CAT4240
2.0 - 5.5
38
250
Vout 30 V,
VL 13 V,
Vin 5 V
1 to 10 / Series
1 MHz
PWM
87
0.6
0.1
TSOT23–5
•Backlight
•Isw = 850 mA
CAT4252* 2.5 - 5.5
24
20
Vout 23 V,
Vin 3.6 V
2 to 6/ Series
1.2 MHz
1-wire/
32 levels
88
1
0.1
WDFN-6
CAT4253* 2.5 - 5.5
24
20
Vout 23 V,
Vin 3.6 V
2 to 6/ Series
1.2 MHz
1-wire/
32 levels
88
1
0.1
TSOT23–6
•Backlight
CAT4157* 2.5 - 5.5
24
20
Vout 23 V,
Vin 3.6 V
2 to 6/ Series
1.2 MHz
1-wire/
32 levels
88
1
0.1
TSOT23–5
•Backlight
•Same pinout as
CAT4137
2 to 6/ Series
1.2 MHz
PWM
88
1
0.1
TSOT23–5
•Backlight
•Same pinout as
CAT4137
•Noiseless PWM
NCP1422
•Backlight
•LT1937 pinout
•Isw = 550 mA
•Backlight
TSOT23–6 /
•LT1932 pinout
TDFN-8
•Isw = 550 mA
•Backlight
•Built-in Schottky
CAT4158* 2.5 - 5.5
24
20
Vout 23 V,
Vin 3.6 V
CAT4258* 2.5 - 5.5
48
25
Vout 46 V,
Vin 3.6 V
2 to 12/ Series
1.2 MHz
1-wire &
PWM
88
1
0.1
UDFN-8
•Backlight
•Noiseless PWM
CAT4131* 2.5 - 5.0
5.5
1.5 A/
0.3 A
Vout 3.4 V,
Vin 3.6 V
1
2 MHz
1-wire/
32 levels
85
1
0.1
TQFN-16
•Flash/Torch
•Synchronous
Rectification
* Pending 2H12.
Inductive-Buck White-LED Drivers — for Torch/Flash Applications
Device
NCP1529
Input
Voltage
Range
(V)
2.7 - 5.5
ON Semiconductor
Max
Output
Volt, Typ
(V)
3.9
Output
Current
(A)
1
Condition
Vout 1.2 V,
Vin 3.6 V
Number of LEDs/
Configuration
1
Switching Mode/ Dimming
Frequency
Method
PWM/PFM
1.7 MHz
PWM
Efficiency
(%)
96
Operating
Quiescent Shutdown
Current, Typ Current, Typ
(mA)
(mA)
28
0.3
Package
Notes
TSOP-5,
uDFN-6
•Flash/Torch
•Auto-switching between
PWM and PFM mode at
light load
Page 7
Linear Topology
PORTABLES
Features
• Dimming via 1-wire EZDim interface
with 32 levels of dimming control
• 25 mA fixed current (B versions) or
adjustable current (A versions)
• Zero current shutdown (< 1 mA)
• No switching supply noise
• Tightly matched current LED sinks
• Ultra-low headroom current sink
• Dropout voltage of 75 mV at 20 mA
• Low profile micro packaging
Applications
• Mobile handsets
• Still and video cameras
• Portable gaming
• Portable medical devices
32-Step EZDim Control
Linear White-LED Drivers for LCD Backlight
Device
No of
Channels
CAT4002A
2
CAT4003B
3
CAT4004A
4
CAT4004B
4
Current
Fixed
(25 mA)
Available Packages
Adjustable
(2 to 40 mA)
SCL70-6
TSOT23-6
4
4
4
4
4
4
4
4
4
VIN
2.4 to 5.5 V
UDFN-8
4
CIN
1 μF
LED1 LED2 LED3
VIN
1-Wire
Programming
32 Steps
Page 8
CAT4003B
EN/DIM
GND
LED Lighting Solutions
LEDs for camera phones, smart phones, and XENON bulb
replacement, are scaling up in light output to meet the needs of
higher performance camera imagers.
1 µF
VIN (2.5 to 5.5 V)
1 µF
Flash Current, A
0.5
CAT3612
Charge
Pump
0.3
CAP
RC
RF
261
kΩ
0.55 F
LEDB
TORCH
826
kΩ
CAP
Dual-Cell
Supercapacitor
LEDA
FLASH
CAT4134
Dual Channel
Inductive
Boost
1 µF
BAL
FLAG
CHRG
CAT4131
Inductive
Boost
1.5
CN
CAT3224
CAT3224
Charge
Pump
4.0
CP
VIN
GND
RT
562
kΩ
2A
2A
GND
Brightness
Camera Flash and Torch Light-Dedicated LED Drivers
Topology
Input Voltage
Range (V)
Output Current
Output
Package
CAT3224
Charge Pump
2.5 - 5.5
2 channels at 2 A each
in Flash mode (4 A total);
2 channels at 200 mA each
in Torch mode
2 channels
TQFN-16
•Dual Cell Supercapacitor Balancing
CAT4131*
Inductive Boost
2.5 - 5.0
1.5 A flash; 0.3 A torch
1 channel
TQFN-16
•1−wire EZDim programmable LED current
with 32 dimming levels
•Synchronous Rectification
CAT4134
Inductive Boost
2.8 - 4.2
250 mA per channel
2 channels
(up to 3 LEDs in series per channel)
TDFN-12
•Dual Frequency Mode 1.2 MHz and 900 kHz
CAT3612
Charge Pump
3.0 - 5.5
150 mA per channel
2 channels
TDFN-12
•1−wire EZDim programmable LED current
with 32 dimming levels
•Efficiency up to 90%
Device
Notes
* Pending 2H12.
ON Semiconductor
Page 9
PORTABLES
Camera Flash and Torch Light-Dedicated LED Drivers
Multifunction LED Drivers
PORTABLES
Multifunction LED Drivers
Device
LV5219LG
LV5231CS
LV5207LP
LV5216CS
Function*
T, SB, RGB
F, MB, RGB
MB, RGB
MB, RGB
Main Backlight
LED Driver
6-Ch
(3/4/5-Ch Avail)
6-Ch
(4/5-Ch Avail)
4-Ch
(3-Ch Avail)
6-Ch
(3/4/5-Ch Avail)
Sub
Backlight
LED
Driver
2-Ch
—
—
—
RGB LED
Driver 1
RGB LED
Driver 2
External
Control
R,G,B
R,G,B
Independent Independent
ON/OFF
ON/OFF
4
R,G,B
R,G,B
Independent Independent
ON/OFF
ON/OFF
4
R,G,B
Independent
ON/OFF
4
—
R,G,B
Independent
ON/OFF
—
Auto
Blinking
LED
Flash
Driver/ Mode/
Torch Pulse
4-Ch
4
Package
Inductive
Boost
3-Ch
4
Serial
Control
Topology
Inductive
Boost
4
FLGA-49
WLP-40
•16 LED channels total
•LED current programmable
– MB: 64 steps
– RGB: 32 steps
– Flash: 16 steps
•LED Diagnostic
•External brightness control
VCT-24
•7 LED channels total
•LED current programmable in
32 steps
WLP-36
•7 LED channels total
•LED current programmable:
– MB, RGB: 32 steps
– Auto Luminance Control:
128 steps
•Main LED auto luminance
control
•External brightness control
I2C Control
Bus
Charge
Pump
—
4
Charge
Pump
—
4
Notes
•17 LED channels total
•LED current programmable
– MB, SB, RGB: 32 steps
– Torch: 16 steps
•Main LED auto luminance
control
•External brightness control
* F=Flash light; T=Torch light; RGB=Illumination; MB=Main LCD screen backlight; SB=Secondary LCD screen backlight
RGB Illumination Drivers
RGB Illumination LED Drivers
Device
Input
Voltage
Range
(V)
RGB LED Driver #1
RGB LED Driver #2
No of
Channels
Auto Blinking
Camera Flash
LED Driver
Interface
Package
Notes
LV5213LP
3.0 to 4.5
3-channels with independent
ON/OFF of the RGB colors
—
3
—
—
3-Wire SPI
VCT-16
•Individual current level programmability (32 levels) per channel
•12 mA total for the 3 channels
LV5217LP
3.0 to 4.5
3-channels with independent
ON/OFF of the RGB colors
—
3
—
—
I2C
VCT-16
•Individual current level programmability (128 levels) per channel
•25 mA total for the 3 channels
LV5223GR
3.0 to 4.5
3-channels with independent
ON/OFF of the RGB colors
3-channels with independent
ON/OFF of the RGB colors
9
4
I2C
VCT-28
•Built-in Charge Pump
•3 additional outputs GPO
LV5226CS
3.0 to 4.5
3-channels with independent
ON/OFF of the RGB colors
3-channels with independent
ON/OFF of the RGB colors
6
4
—
4-wire SPI
WLP-48
•4 high-side P-channel switches
•1 additional output GPO
LV5230LG
3.0 to 4.5
4
—
I2C
FLGA-49
•25 mA max per dot
Page 10
17x7 dot matrix LED driver:
Column (anode) P-channel driver, 17 channels
Row (cathode) N-channel driver, 7 channels
—
(Auto Scroll, etc.)
2-Ch
(R2, G2 Common)
LED Lighting Solutions
ADDRESSABLE SIGNAGE
Addressable signage and architectural lighting make wide
use of LEDs utilizing the broad range of available LED colors
and their long operating lifetime. In architectural lighting,
the use of LEDs allows vivid colors in lighting facades
and enhancement of structural details. In moving signage
applications, information can be updated in real time traffic
displays, video images, and advertising. ON Semiconductor
offers a series of linear solutions that can accurately regulate
LED current and have programmable interfaces to allow
software control.
LED Controllers
Vin
(V)
LEDs
Iout per Channel
(mA)
Dropout Voltage
(mV)
Shutdown Current Max
(mA)
Dimming
Interface
Features
Packages
CAT310
5.5
10
50
—
—
4-Wire
—
SOIC–20
CAT4008
3.0 - 5.5
8
100
300 @ 30 mA
1
4-Wire
Thermal Shutdown; UVLO
SOIC–16, TSSOP–16
4
Thermal Shutdown; UVLO; Up to
6 V operation on LED pins
Thermal Shutdown; UVLO ; Up
to 25 V operation on LED pins
QSOP–24, SOIC-24,
TQFN–24, TSSOP–24
4
TSSOP–24
4
Device
Architectural
CAT4016
3.0 - 5.5
16
100
300 @ 30 mA
1
4-Wire
CAT4116*
3.0 - 5.5
16
100
300 @ 20 mA
1
4-Wire
CAT4101
3.0 - 5.5/25
8
1000
500 @ 1 A
1
PWM
Thermal Shutdown; UVLO
TO-263–5
4
3 Independent Current Sinks;
Cascadable
SOIC–16
4
CAT4103
3.0 - 5.5/25
6x3
175
400 @ 175 mA
1
4-Wire
CAT4104
3.0 - 5.5/25
6x4
175
400 @ 175 mA
1
PWM
Thermal Shutdown; UVLO
SOIC–8, TDFN–8
4
CAT4109
3.0 - 5.5/25
6x3
175
400 @ 175 mA
5
PWM
3 Independent Current Sinks
SOIC–16
4
Signage
4
* Pending 2H12.
8 and 16 Channel Constant Current LED Sink Drivers
Features
Applications
• ±1.5% typical channel matching
• Up to 100 mA drive per channel
• 300 mV dropout at 30 mA
• Robust protection (UVLO, thermal shutdown)
• Cascadable 25 MHz capable 4-wire data interface
VIN
VDD
LED1 LED2 LED3
+
• Intelligent vehicle signs
• Scrolling banners
• Billboard signs
• Marque signs
• Gaming and pachinko
• Sports scoreboards
LED8
+
CURRENT
SINKS
Current
Setting
RSET
1.2 V Ref
BLANK
GND
LATCH
L0
L1
L2
SIN
S0
S1
S2
CLK
ON Semiconductor
LATCHES
SHIFT
REGISTER
L8
SOUT
S8
CAT4008
Page 11
ADDRESSABLE SIGNAGE
Intelligent LED Control for Signage and Architectural Lighting
3-Channel Cascade-Capable Driver with Independent Current Control — CAT4103
Features
LED1 LED2 LED3
ADDRESSABLE SIGNAGE
•Up to 25 V per string
•Robust protection (UVLO, thermal shutdown)
•RGB Drivers can be individually controlled or cascaded
•Drivers to support currents of up to 175 mA per channel
1.2 V Ref
VDD
CURRENT
SINKS
+
Applications
• Accent lighting
• Color mixing
• Effects lighting
• Mood lighting
BIN
LIN
CIN
VIN
5 to 25 V
VDD
3 to 5.5 V
1 µF
RSET2
Current Setting
RSET3
BOUT
LATCH
L0
L1
CAT4103
L2
SHIFT
REG
CLOCK
S0
S1
S2
D Q
SOUT
CK
COUT
GND
VDD
BIN
LIN
SIN
CIN
GND
Page 12
Current Setting
LOUT
SIN
CONTROLLER
RSET1
BLANK
Resources
• Evaluation Board: CAT4103AEVB
Current Setting
RED
GREEN BLUE
LED1
LED2
LED3
CAT4103
RSET1
RSET2
BOUT
LOUT
SOUT
COUT
NEXT
CAT4103
DEVICE
RSET3
LED Lighting Solutions
16-Channel I 2 C LED Indicator Driver and Port Expander — CAT9532 & CAT9552
5V
5V
RS0
3 x 10 kΩ
• 16 LED drivers with dimming control
• 256 brightness steps
• 16 open drain outputs drive 25 mA each
• Programmable blink rates
• I/Os can be used as general purpose I/Os
• 400 kHz I2C bus compatible
• 8 address expansion selections
SDA
SCL
RESET
SDA
SCL
RESET
I2C/SM Bus
Master
3.3 V
VSS
NOA1302
VDD
Ambient
Light Sensor
A2
A1
A0
VSS
RS1
RS11
VCC
ADDRESSABLE SIGNAGE
Features
LED0
LED1
CAT9552
LED11
LED12
GPIOs
LED15
Applications
• Single board computers
• Telecom equipment
• Office machines
• Appliance control panels
• Gaming
• Alarm systems
• Point of sale displays
ON Semiconductor
Page 13
MID-VOLTAGEGENERAL LIGHTING
Mid-Voltage LED Driver Topologies
Many LED applications are powered from an offline AC-DC
supply, a battery, or an electronic transformer with a low voltage
AC output. In addition, some of these power sources, such as
lead acid batteries, are loosely regulated. As a result, there is
a need for LED driver solutions that can operate over a broad
range of input voltage and can be configured in various topologies
to support the LED load requirements. Depending on the LED
current and operating conditions, this could involve either a linear
or switching regulator LED driver solution.
D1
VIN
CIN
MID-VOLTAGE
GENERAL LIGHTING
• Landscape lighting
• Low voltage track lighting
• Solar powered lighting
• Automotive
• Emergency vehicles
• Marine applications
• 12 Vac/Vdc MR16
• Airplane interiors
• Sign backlighting
• Channel letters and signs
Power
Offline AC
Regulated Adapter
(Sealed)
Lead Acid
Battery
12 Vdc
&
12 Vac
Application
Low to medium volume
applications, reduces safety
requirements
Automotive,
solar powered,
marine
Common in interior, track
lighting, outdoor, landscaping
applications
NCL30160
VIN
ROT
VCC
VCC
IVC
ROT
PWM
Rsense
CVCC
Buck (Step-Down) Topology
100 H
NCP3065
Common voltages of 12, 24, 36, 48 Vdc,
regulation to ±5%
Loose if magnetic ballast, tight to ±5% if
electronic ballast, minimum load may be
required; plus cable losses
DRV
DIM/Enable
Voltage & Regulation
Loose regulation, 8-14 Vdc;
Wider for automotive, 7-27 Vdc
L1
LED
Applications
+VIN
220 F
50 V
+
MBRS140L
NC SWC
Ipk SWE
VCC CT
FB GND
+
100 F
50 V
2.2 nF
–LED
RSENSE
+LED
MM3Z36V
Boost (Step-Up) Topology
VCC
3 V to 25 V
VIN
5V
OFF ON
549
LEDs
VIN
CAT4101
EN/PWM
1A
LED
RSET
GND
Linear Topology
Page 14
LED Lighting Solutions
Linear LED Driver Solutions
Linear solutions are the preferred approach for many lighting
applications, as they are simple, straightforward to design, and
allow the LEDs to be driven with a tightly regulated current,
regardless of LED forward voltage or input supply variation.
Because the LED drivers are linear, they must be matched
to the power dissipation requirements of the application.
ON Semiconductor offers a wide range of constant current linear
LED drivers whose current levels span from 10 mA to 1 A.
Ambient Light Sensor
Control
VDD
Input
hν
Cathode
NOA1211
Photo
Diode
VSS
Output
GB2 GB1
22
21
TA = 25°C
20
MID-VOLTAGE
Anode NSI45
23
GENERAL LIGHTING
Input
Ireg(SS), STEADY STATE CURRENT (mA)
Constant Current Regulators – Dimming with External BRT
19
18
TA = 85°C
17
16
DC Test Steady State, Still Air
3
4
5
6
7
8
9
Vak, ANODE−CATHODE VOLTAGE (V)
10
Linear LED Drivers
Operating
Voltage Range
(V)
Channel
Output
Current
(mA)
Typical Current
Tolerance
Number of
Channels
Adjustable
Dimming
Control
Typical Dropout
(V)
Operating
Temperature
Range
(°C)
CAT4101
3.0 to 25
1000
±2%
1
Y
PWM
500 mV @ 1000 mA
CAT4104
3.0 to 25
175
±2%
4
Y
PWM
400 mV @ 175 mA
Device
Package(s)
Features
–40 to +85
D2PAK
Thermal Shutdown, UVLO
–40 to +85
SOIC-8, TDFN-8
Thermal Shutdown, UVLO
NCV7680
6 to 16
35
±10% @ 35 mA
8
Y
Ext
1
–40 to +125
SOIC-16 EP
AEC-Q101 qualified
NSI50350AS
2 to 50
350
±10%
1
N
Ext
2.0
-40 to +125
SMC
AEC-Q101 qualified
NSI50350AD
2 to 50
350
±10%
1
N
Ext
2.0
-40 to +125
DPAK
AEC-Q101 qualified
NSIC2050B
1.8 to 120
50
±15%
1
N
Ext
1.8
-40 to +125
SMB
AEC-Q101 qualified
NSIC2030B
1.8 to 120
30
±15%
1
N
Ext
1.8
-40 to +125
SMB
AEC-Q101 qualified
NSIC2020B
1.8 to 120
20
±15%
1
N
Ext
1.8
-40 to +125
SMB
AEC-Q101 qualified
NSI45030Z
1.8 to 45
30
±15%
1
N
Ext
1.8
-40 to +125
SOT-223
AEC-Q101 qualified
NSI45030AZ
1.8 to 45
30
±10%
1
N
Ext
1.8
-40 to +125
SOT-223
AEC-Q101 qualified
NSI45030A
1.8 to 45
30
±10%
1
N
Ext
1.8
-40 to +125
SOD-123
AEC-Q101 qualified
NSI45030
1.8 to 45
30
±15%
1
N
Ext
1.8
-40 to +125
SOD-123
AEC-Q101 qualified
NSI45025Z
1.8 to 45
25
±15%
1
N
Ext
1.8
-40 to +125
SOT-223
AEC-Q101 qualified
NSI45025AZ
1.8 to 45
25
±10%
1
N
Ext
1.8
-40 to +125
SOT-223
AEC-Q101 qualified
NSI45025A
1.8 to 45
25
±10%
1
N
Ext
1.8
-40 to +125
SOD-123
AEC-Q101 qualified
NSI45025
1.8 to 45
25
±15%
1
N
Ext
1.8
-40 to +125
SOD-123
AEC-Q101 qualified
NSI45020A
1.8 to 45
20
±10%
1
N
Ext
1.8
-40 to +125
SOD-123
AEC-Q101 qualified
NSI45020
1.8 to 45
20
±15%
1
N
Ext
1.8
-40 to +125
SOD-123
AEC-Q101 qualified
ON Semiconductor
Page 15
Linear LED Drivers (cont.)
Device
Operating
Voltage Range
(V)
Channel
Output
Current
(mA)
Typical Dropout
(V)
Operating
Temperature
Range
(°C)
Typical Current
Tolerance
Number of
Channels
Adjustable
Dimming
Control
NSI45015W
1.8 to 45
15
±20%
1
N
Package(s)
Features
Ext
1.8
-40 to +125
SOD-123
AEC-Q101 qualified
NSI50010Y
1.8 to 45
10
±30%
1
NSI45090JD
1.8 to 45
90 to 160
±15%
1
N
Ext
1.8
-40 to +125
SOD-123
AEC-Q101 qualified
Y
Ext
1.8
-40 to +125
DPAK
AEC-Q101 qualified
NSI45060JD
1.8 to 45
60 to 100
±15%
NSI45035JZ
1.8 to 45
35 to 70
±15%
1
Y
Ext
1.8
-40 to +125
DPAK
AEC-Q101 qualified
1
Y
Ext
1.8
-40 to +125
SOT-223
AEC-Q101 qualified
NSI45020JZ
1.8 to 45
20 to 40
±15%
1
Y
Ext
1.8
-40 to +125
SOT-223
AEC-Q101 qualified
NUD4001
2.0 to 30
(60 V Surge)
500
±3%
1
Y
Ext
1.4
–40 to +125
SOIC-8
Can be used with an
external transistor
NUD4011
5 to 200
70
±3%
1
Y
Ext
5
–40 to +125
SOIC-8
Can be used with an
external transistor
Features
• Low startup voltage
• Tight current regulation regardless
of Vf variation
•Negative temperature coefficient
protects LEDs
Resources
• Sample Kit: CCR2KIT/S
Device
Max
Anode-to-Cathode
Voltage (VAK )
(V)
Voltage
Overhead
(Vin – VLEDs )
(V)
Constant
Current Ireg
(@ Vak = 7.5 V)
(mA)
NSI45xxx
45
1.8
NSI50xxx
50
NSIC20xx
120
Current
Tolerance Over
Voltage
Max Junction
Temperature
(°C)
Fixed:
15, 20, 25, 30
±15%, ±10%
150
SOD-123,
SOT-223
2.0
Fixed:
10, 350
±10%
175
SMC, DPAK
1.8
Fixed: 20,
30, 50
±15%
175
SMB
1.8
Adjustable
20 to 40
35 to 70
60 to 100
90 to 160
200 to 350*
±15%
150
SOT-223,
DPAK
D1
Anode
+
Cathode
– Vin
NSI45
NSI45
NSI45
Q1
Q2
Qx
NSI45xxxJ
45
Packages
* Pending 2H12. xxx in the device number represents the current level.
30
Reaches Regulation
Quickly
NSI45025AT1G
25
20
Ireg (mA)
MID-VOLTAGE
GENERAL LIGHTING
Constant Current Regulator (CCRs) Linear LED Drivers for Displays and Channel Letters
15
10
5
0
Turns On
Quickly
0
2.0
4.0
6.0
8.0
10
Vin (V)
12
14
16
18
20
NSI45025 vs Competing Devices @ 25 mA
Page 16
LED Lighting Solutions
Switching Driver Solutions
Wide Input Voltage
LED Driver Selector
Vin < 40 V
Step-Down
(Buck)
Vout < Vin
Step-Up
(Boost)
Vout > Vin
<350 mA
Is
Vout > 40 V
NCP3065/6
Boost
Controller
What
Is the Switch
Current
NCP3065/6
Boost
Converter
Up to 200
Topology
Buck, Boost,
Buck/Boost
Switch
Vin Range Current
(V)
(A) 1
Controller
Device
NCP3065
Automotive
Qualified
Device
30 to 40
*
NCV3065
1.5
>1.3 A
NCP3163
Boost Converter
Up to
3 A Switch
CS5171/3
Boost
Converter
Switching
Frequency
Typ (kHz)
>1.2 A
<1.2 A
No
<1.3 A
Determine
Iout
CAT4201
Hysteretic Buck
Converter
NCP3065/6
Buck
Converter
NCP3065/6
Buck
Controller
NCL30160
Buck
Converter
NCL30100
Buck
Controller
NCP3065/6
Boost
Controller
MID-VOLTAGE
Yes
GENERAL LIGHTING
SEPIC/Buck-Boost
Vout < = > Vin
NCP3065/6
NCL30105
Buck
Controller
Resources
Packages
Application
SOIC-8,
DFN-8,
PDIP-8
Buck 3 A
Evaluation Board
NCP30653ABCKGEV
Buck-Boost 350 mA, 550 mA MR16 LED bulb NCP3065BBGEVB
Documentation
Application Note: AND8298/D
Reference Design: TND373/D
Design Note: DN06048/D
SEPIC 350 mA, 700 mA, 1 A MR16 LED bulb NCP3065D1SLDGEVB Design Note: DN06033/D
NCP3066
NCP3163
250
Up to 200
Buck, Boost,
Buck/Boost
30 to 40
1.5
Buck, Boost,
Buck/Boost
25 to 40
25 to 40
3.4
*
3.4
NCV3066
NCV3163
SEPIC 350 mA & 700 mA
NCP3065D2SLDGEVB Design Note: DN06031/D
SEPIC 700 mA
NCP3065D3SLDGEVB Design Note: DN06031/D
Buck with external P-channel MOSFET
NCP3065SOBCKGEVB Application Note: AND8298/D
Boost 1.5 A
NCP3065SOBSTGEVB Application Note: AND8298/D
SOIC-8,
DFN-8,
PDIP-8
SEPIC 350 mA, 700 mA, 1 A
NCP3066DFSEPGEVB Application Note: AND8298/D
Buck 3A
NCP3066S3BCKGEVB Application Note: AND8298/D
Boost <1 A
NCP3066SCBSTGEVB Application Note: AND8298/D
SOIC-16W,
DFN-18
Boost 700 mA
Buck 3A
Inverter 500 mA
MC33163
Up to 50
Buck, Boost,
Buck/Boost
CAT4201
50 - 1000
Buck
70 to 36
0.7
NCP1034
Up to 500
Buck
80 to 100
—
CS5171/3
280 / 560
Boost or SEPIC
27 to 30
1.5
NCP1294
1000
Buck, Boost,
Buck/Boost
33 to 72
—
NCL30100
Up to 700
Buck
635 to 18
—
NCL30105
Up to 500
NCL30160 Up to 1.4 MHz
Buck
Up to 22
—
Buck
63 to 40
1
—
SOIC-16
CAV4201
TSOT-23-5
Buck 300 mA
—
SOIC-16
Buck 5 A, 5 Vout
NCV5171/3
SOIC-8
Boost 400 mA, 5 Vout
4
—
TSSOP-16,
SOIC-16
High Voltage LED Driver
(24 Vin to 110 Vout @ 100 mA)
4
—
TSOP-6
4
4
NCP3163BSTEVB
NCP3163BUCKGEVB
NCP3163INVGEVB
CAT4201AEVB
Design Note: DN06067/D
NCP1034BCK5VGEVB Design Note: DN06041/D
Design Note: DN06047/D
CS5171BSTEVB
Design Note: DN06062/D
Buck 700 mA MR16 LED bulb
NCL30100ADLMGEVB
Buck 700 mA PWM dimmable LED driver
NCL30100ASLDGEVB
—
SOIC-8
Up to 80 V Input, 350 mA Buck LED Driver
NCL30105GEVB
—
SOIC-8
Up to 40 V, 1 A Buck LED Driver
NCL30160GEVB
1 For switching regulators, this current is used to calculate LED current based on Vin conditions. * Can be configured as a controller.
ON Semiconductor
Page 17
LED MR16 Light Bulb
NCL30100, Fixed Off-Time Step-Down LED Driver Controller
• Quasi-fixed OFF time, peak current hysteretic control method thus requiring no
compensation components
• Low Side N-FET switch topology
• Intended for continuous conduction mode operation, thus no output capacitor is
needed
• >500 kHz operation
• ±5% typical current regulation tolerance
• VCC operation from 6.35 to 18 V
MID-VOLTAGE
GENERAL LIGHTING
+
6.5
to
24 V
–
C1
R3
R1
NCL30100
CS
R2
L1
GND VCC
CT
R4
D1
DRV
LED1
LEDx
12 mm
Q1
IVC
C2
Adjustable
Off Time
Adjustable
Control
Current Sense
Threshold
15.6 mm
LED2
C3
D2
LEDs Are
Connected
to Vin
Zener Regulator
Can Extend Operating
Range >18 V
17.6 mm
Resources
• Evaluation Boards
• NCL30100ADLMGEVB: MR16 form factor
• NCL30100ASLDGEVB: PWM dimmable
Solar-Powered LED Street Sign
NCL30160 — Constant Current Step-Down LED Driver for High Power LEDs
• 30 mΩ integrated MOSFET
• 100% duty cycle for high efficiency
• Input voltage: 6.3 V to 40 V
• Switching frequency: Up to 1.4 MHz
• Dedicated PWM dimming pin/low power shutdown
• No control loop compensation required
• 1.5 A average current capability
VIN
D1
CIN
• Evaluation Board: NCL30160GEVB
VIN
LEDs Are
Connected
to Vin
DRV
DIM/Enable
ROT
VCC
VCC
IVC
ROT
PWM
CVCC
LED Driver
(Buck)
L1
NCL30160
Dedicated
Dimming
Input
Resources
MPPT Charge
Controller
LED
Adjustable
Off Time
Control
Rsense
Adjustable
Current Sense
Threshold
Battery
Solar Panel
Page 18
LED Lighting Solutions
12 V AC-DC Design for 3 and 4 LED Modules
The circuit described in the DN06048/D
Design Note is intended for driving multidie LED modules like the Sharp ZENIGATA™,
Cree XLamp™ MC-E, and other LEDs in low
voltage 12 Vac/Vdc applications. The forward
voltage of the modules overlaps the input
voltage range, so a single switch buck-boost
configuration is used.
Features
Applications
•Small size
•Wide input and output operation
voltage
•Regulated output current
•Open LED protection
•Output short circuit protection
•MR16 bulbs
•Landscape lighting
•Transportation lighting
Resources
•Design Note DN06048/D
•Reference Design: TND373/D
•Evaluation board:
NCP3065BBGEVB, buckboost MR16
MID-VOLTAGE
Sharp ZENIGATA
LED Module
GENERAL LIGHTING
12 Vac
or
12 Vdc
NCP3065
Compensation
Network
Reference Design Block Diagram
Reference Design Demo Board
0.457” x 1.148” (11 mm x 29 mm)
Cree XLamp MC-E
LED
0.400
Iout (mA)
0.375
0.350
0.325
0.300
9.8
10.8
11.8
VAC (Volts)
Iout versus Vac Input
ON Semiconductor
12.8
13.8
MR16 LED Module
Page 19
MID-VOLTAGE
AUTOMOTIVE LIGHTING
Automotive Lighting Systems
ON Semiconductor offers standard products
and custom devices for automotive lighting
applications. The company leads the market for
Xenon driver ASICs and developed the defacto
standard stepper driver for headlight levelling
and swiveling.
Stepper
Drivers
LED
Drivers
Xenon
Drivers
Halogen
Drivers
Advanced Front Lighting
LED
Matrix
LCD
Backlight
RGB
LED
Dashboard
LED
Drivers
Bulb
Drivers
Interior Lighting
RGB
LED
Body Control
Module
LED
Drivers
Bulb
Drivers
Halogen
Drivers
Rear Lighting
Door
Front Lighting
The majority of automobiles on the road today are equipped
with halogen lights for the high-beam (HB) and low-beam (LB)
functions - the main front lighting functions. Halogen LB typically
consumes 55 W, and provides ~1,000 lumen. HID technology introduced over ten years ago - consumes 35 W, and provides
~3,500 lumen. Because of the high intensity and risk of glare to
approaching traffic, some countries require automatic leveling of
the LB, plus a high pressure cleaning device. Over time, HID lights
will integrate the HB function into bi-xenon solutions.
visibility in curves, and Adaptive Driving Beam (ADB), to adapt the
beam to real-time situations. Stepper motors provide the primary
controls for AFS and ADB.
ON Semiconductor offers a full range of products, from generic
bulb driver solutions to stepper drivers, LED drivers, and Xenon
drivers, that are specifically designed for front lighting.
While halogen technology continues to be viable for front lighting,
automotive designs increasingly use LED lighting. LED lighting
offers enhanced styling options, enables ‘instant-on’ lighting, and
allows brightness control from 0% to 100%
power.
Another important aspect for automotive
front lighting is beam swiveling for Advanced
Frontlighting Systems (AFS), to optimize the
Position Sensors (Vertical)
Position Sensors (Horizontal)
CAN
LIN
Switches
Ignition Switch
IGN
Page 20
Stepper Motor
Controller
& Driver
Headlamp
Leveling
(Up/Down)
Stepper Motor
Controller
& Driver
Headlamp
Swiveling
(Left/Right)
High Beam,
Low Beam
Signal
Conditioning
I/O Protection
MID-VOLTAGE
AUTOMOTIVE LIGHTING
LED
Drivers
Signal
Conditioning
Transceiver
or SBC
Microcontroller
Daytime
Running Lamp
LED
Fog
Light
LED
Turn Signal
Lamp Driver
LED
Cornering
Light
LED
Infra
Vision
Wakeup
Xenon
LED
Halogen, Incandescent
Halogen, Incandescent
Halogen, Incandescent
Halogen, Incandescent
Halogen, Incandescent
LED
Low Side
Driver
Motor
Predriver,
BLDC
Voltage
Regulation
(Linear, Switching)
Power
Distribution
Relays
Supervisory
LED Lighting Solutions
Leveling and Swiveling for Front Lighting
The AMIS-30623 single-chip micro-stepping motor driver,
with integrated controller and LIN interface, enables the
design of dedicated mechatronic solutions connected
remotely with a LIN master. The device receives positioning
VBAT
instructions through the bus and subsequently drives the
motor coils to the desired position, using configurable
parameters for current, speed, acceleration, and deceleration.
AMIS-30623 also detects motor stalling.
220 nF
CPN
CPP
VCP
VBB
VDD
HW0
Hardwired LIN Address,
Connected to VDD or GND HW1
LIN Bus
MID-VOLTAGE
1k
AUTOMOTIVE LIGHTING
2.7 nF
AMIS-30623
Connect
to VBAT
or GND
Connect
to VBAT
or GND
SWI 1 k
MOTXP
HW2
MOTXN
M
MOTYP
MOTYN
LIN
NCV70521 and NCV70522 are single-chip micro-stepping motor
drivers with current translation table and SPI interface. NCV70522
also includes an embedded 5 V regulator and a watchdog reset.
The devices act as peripheral drivers, receiving ‘Next Micro-Step’
commands from a microcontroller, and synchronizing the motor
coil-current with the desired speed. The integrated SPI bus allows
parameter setting and diagnostics feedback.
VBAT
VDD
VBB
220 nF
VCP
POR/WD
CPN
DIR
NXT
DO
DI
C
CLK
NCV70522
CPP
220 nF
MOTXP
CS
MOTXN
CLR
MOTYP
ERR
M
MOTYN
SLA
ON Semiconductor
Page 21
Power Ballast and Dual LED Driver for Advanced LED Front Lighting Systems
The NCV78663* single-chip, intelligent LED driver for front
lighting enables single-module control of high beams, low beams,
daytime running lights, position lights, cornering lights, turn
indicators, and fog lights. With integrated digital dimming, SPI
programmable settings, and build-in diagnostics, the NCV78663
offers an integrated, energy efficient solution for comprehensive
front lighting control.
Features – NCV78663
LEDCTRL1
VBOOST
IBSTSENSE–
MID-VOLTAGE
AUTOMOTIVE LIGHTING
VGATE
VBB
IBSTSENSE+
LED
String 1
LEDCTRL2
DIAG1
NCV78663*
LED
String 2
DIAG2
Light ECU
CAN
or
LIN
* Pending 2H12.
Page 22
Optional
μC
SPI_SCLK
SPI_SDI
SPI_SDO
SPI_SCS
GND
•System integrated solution with few external
components.
•Buck-boost topology
•LED current regulator
•Constant average current
•Efficient integrated buck switches (high-side)
•Current up to 2 A
•Extended diagnostics: detection of open circuit
or failing driver, short, over-current protection,
single LED failures
• Thermal protection
•System customization by SPI interface and/or
OTP-settings
•Multiple system configurations with one device
•Fewer module versions for OEM
•Better EMC behavior, without extra filtering
•Low EMC from battery
•Low EMC to LED string
•High overall efficiency (>90%)
•Evaluation kit available
LED Lighting Solutions
Linear Current Regulator and Controller for Automotive LED Rear Combination Lamps
Features – NCV7680
The NCV7680 consists of eight linear programmable constant
current sources. System design with the NCV7680 allows for
two brightness levels, one for stop and one for tail illumination.
Optional PWM control - the preferred method for dimming LEDs
- can also be implemented. The PWM generator’s fixed frequency
provides flicker−free illumination. Optional external ballast FET
allows for power distribution on designs requiring high currents.
TAIL Input
MRA4003T3G
STOP Input
MRA4003T3G
To support the common RCL configuration of LED strings, the
NCV7680 provides eight matched outputs for individual string
drive, with current set by a single resistor. Individual string drive
ensures equal current distribution between the strings.
The NCV7680 can function as a standalone device or in
conjunction with additional support circuitry for more complex
systems. When operating in combination with a boost controller,
additional LEDs may be connected to a string.
VSTRING
NTD2955
NCV7680
OUT1
Ballast Drive OUT2
VP
OUT3
RSTOP
OUT6
STOP/PWM OUT4
OUT5
DIAG
RTAIL
FB
OUT7
OUT8
Vref
Application Diagram with External FET Ballast Transistor
ON Semiconductor
Page 23
MID-VOLTAGE
Automotive battery systems have wide variations in line supply
voltage. Low dropout is a key attribute for providing consistent
LED light output at low line voltage.
AUTOMOTIVE LIGHTING
•Constant current outputs for LED string drive
•Open LED string diagnostic with open−drain output
•Slew rate control eliminates EMI concerns
•On−chip 1 kHz tail PWM dimming
•Over-voltage and over-temperature set back power limitation
Automotive LIN RGB LED Driver for Interior Lighting
The LIN Bus (Local Interconnect Network) is an inexpensive serial
communications protocol, which is used within current automotive
network architectures. It is a relatively slow communication system
intended to monitor sensor devices or actuators in today’s cars.
The NCV7430, LIN RGB LED Driver, combines a LIN transceiver
together with a RGB LED driver and memory. It is a single-chip
RGB driver intended to monitor for dedicated multicolor LED
applications in Automotive interior lighting. It contains a LIN
interface (slave) for parametric programming of LED color and
intensity. The device receives instructions through the LIN bus and
subsequently drives the LEDs independently.
The NCV7430 acts as a slave on the LIN bus and the master can
request specific status information (parameter values and error
flags). The LIN address of the NCV7430 can be programmed in
the internal memory of the device.
The NCV7430 is fully compatible with automotive requirements.
MID-VOLTAGE
AUTOMOTIVE LIGHTING
D1
VBAT
C2
10 nF
C1
100 nF
Optional
Optional
VBB
R1
VBIAS
Q1
ANODE
NCV7430
LIN Bus
C3
VDR
27 V
LIN
TST1 TST2
LED1C
LED2C
LED3C
LED3R
LED2R
LED1R
GND GND
Rsense
1
2
3
10 Ω for 30 mA
Features — NCV7430*
RGB LED Driver
• 3 independent LED current regulators
• LED currents programmable with external resistors
• Power dissipation option with external ballast transistor
• LED temperature compensation with external sense circuit
• Modulation control for 3 LEDs (with calibration)
LIN Interface
• LIN physical layer according to LIN 2.1/SAE J2602
• OTP-programmable device node number and group address
• Diagnostics and status information about LEDs
Protection and Diagnostics Over-Current Detection
• Short circuit detection to GND and VBB
• Open LED detection
• High temperature warning and shutdown
• Retry mode on error detection
Power Saving
• Sleep mode supply current 20 mA
• Compliant with 14 V automotive systems
EMI Compatibility
• LIN Bus integrated slope control
• EMC reduced LED modulation mode * Pending 2H12.
Page 24
LED Lighting Solutions
Constant Current Regulators for Automotive Exterior and Interior Lighting
The two-terminal linear constant current regulators (CCRs)
are simple, economical, and robust devices that provide an
effective solution for regulating current in cost-sensitive LED
applications. The devices require no external components, allowing
them to be implemented as high or low−side regulators. These
devices regulate output current over a wide range of input
voltage, and are designed with a negative temperature coefficient
to protect LEDs from thermal runaway at extreme voltage and
operating temperature.
Features
• Regulated current provides constant brightness over wide voltage range
• Negative temperature coefficient protects LEDs in high ambient conditions
• Available with multiple maximum operating voltages (45 V, 50 V, and 120 V)
to withstand battery load dump
Constant Current
50 V Pulse
MID-VOLTAGE
AUTOMOTIVE LIGHTING
Resources
• Sample Kit: CCR2KIT/S
12 V
NSI45
50 V
1 ms Pulse
NSI45
NSI45
NSI45
Applications
• Exterior Lighting — CHMSL (Center High Mounted Stop Lighting)
• Interior Lighting — Dome light, vanity mirror light, glove box
Device
Max
Anode-to-Cathode
Voltage (VAK )
(V)
Voltage
Overhead
(Vin – VLEDs )
(V)
Constant
Current Ireg
(@ Vak = 7.5 V)
(mA)
Current
Tolerance Over
Voltage
Max Junction
Temperature
(°C)
±15%, ±10%
150
SOD-123,
SOT-223
Packages
NSI45xxx
45
1.8
Fixed:
15, 20, 25, 30
NSI50xxx
50
2.0
Fixed:
10, 350
±10%
175
SMC, DPAK
NSIC20xx
120
1.8
Fixed: 20,
30, 50
±15%
175
SMB
1.8
Adjustable
20 to 40
35 to 70
60 to 100
90 to 160
200 to 350*
±15%
150
SOT-223,
DPAK
NSI45xxxJ
45
* Pending 2H12. xxx in the device number represents the current level.
ON Semiconductor
Page 25
Compact 350 mA Buck LED Driver — CAV4201 & CAT4201
Features
Applications
• AEC-Q100 qualified as CAV4201
• Patented average current regulation
architecture
• Drives up to 7 LEDs in series from 24 V
• Handles transients up to 40 V
• Power efficiency >94%
• Current limit and thermal protection
• Open LED protection
• Thin SOT-23-5
• Transportation lighting
• MR16 bulbs
• Light bars
• Architectural lighting
• Signage
• Solar powered lighting
Resources
• Evaluation Board: CAT4201AEVB
12/24 V
VBAT
AUTOMOTIVE LIGHTING
30 kΩ
MID-VOLTAGE
CTRL
CAT4201
7V
20 µA
EN
OFF - Time Control
SW
PWM
Controller
ON - Time Control
1.2 V
Reference
EN
1Ω
1.2 V
RSET
GND
Multi-Topology, Constant Current Switching Regulator for High Brightness LEDs — NCV3065 & NCV3066
MBRS260
Features
+VOUT
•LED drive current up to 1.5 A
•External switch to improve efficiency
•PWM and analog dimming
•Handles transients up to 40 V
•NCV3066: same as NCV3065 but with
On/Off control
•AEC-Q100 qualified as NCV3065/6
+
120 µF
50 V
NTD24N06L
10 F
25 V
+
NCV3065
BAT54
NC SWC
Ipk SWE
CT
VCC
FB
MMBT
3906
GND
MMSZ24
2.2 nF
SEPIC Application Circuit
Application
Buck 3 A
Evaluation Board
NCP30653ABCKGEV
NCP/NCV3065
Buck-Boost 350 mA, 550 mA MR-16 LED bulb NCP3065BBGEVB
NCP/NCV3065
NCP/NCV3065
NCP/NCV3065
NCP/NCV3065
NCP/NCV3065
NCP/NCV3066
NCP/NCV3066
NCP/NCV3066
NCP/NCV3065
NCP/NCV3066
SEPIC 350 mA, 700 mA, 1 A MR-16 LED bulb
SEPIC 350 mA & 700 mA
SEPIC 700 mA
Buck with external P-channel MOSFET
Boost 1.5 A
SEPIC 350 mA, 700 mA, 1 A
Buck 3A
Boost <1 A
General
General
Page 26
+
+VIN
Resources
Device
NCP/NCV3065
120 µF
50 V
NCP3065D1SLDGEVB
NCP3065D2SLDGEVB
NCP3065D3SLDGEVB
NCP3065SOBCKGEVB
NCP3065SOBSTGEVB
NCP3066DFSEPGEVB
NCP3066S3BCKGEVB
NCP3066SCBSTGEVB
Documentation
Application Note: AND8298/D
Reference Design: TND373/D
Design Note: DN06048/D
Design Note: DN06033/D
Design Note: DN06031/D
Design Note: DN06031/D
Application Note: AND8298/D
Application Note: AND8298/D
Application Note: AND8298/D
Application Note: AND8298/D
Application Note: AND8298/D
Design Worksheet: NCP3065 DWS.XLS
Design Worksheet: NCP3066 DWS.XLS
NCP3065D3SLDGEVB
SEPIC Evaluation Board
LED Lighting Solutions
AC-DC
AC Line Powered LED Driver Topologies
There are numerous topologies for driving LEDs off the AC mains,
depending on the requirements of the application (size, efficiency,
power factor, power delivered, drive current). Fortunately,
CCR
115 Vac
100 Ω
ON Semiconductor provides a wide range of power solutions,
whether the application is a 5 W LED under-cabinet light or a
150 W LED streetlight.
PFC
(Optional)
AC
PWM Switching
Regulator
30 LEDs
PWM
Controller
Non-Isolated Buck Driver
AC-DC
Non-Isolated Linear Driver
AC
CCCV
Control
PWM Switching
Regulator
PWM or PFC
Controller
Single-Stage Flyback LED Driver
AC
PFC
Resonant
Controller
CCCV
Control
Dual-Stage Power Factor Corrected Isolated LED Driver
ON Semiconductor
Page 27
Non Isolated Linear LED Driver Topology — Constant Current Regulators (CCRs)
Low Current LED String Driver
NSIC2020
100 Ω
Features
115 Vac
•LED Driver: CCR NSIC2020 (120 V, 20 mA)
•Constant current as AC voltage increases
•No delay in turn on after LED threshold voltage is reached
•Bright LEDs at low voltages
•LEDs protected from voltage surge
20 mA
30 LEDs
Applications
•LED light bulbs
•Rope lights
•Cove lighting
•Accent lighting
•Under-cabinet lighting
Resources
• Sample Kit: CCR2KIT/S
Max
Anode-to-Cathode
Voltage (VAK )
(V)
Device
Voltage
Overhead
(Vin – VLEDs )
(V)
Constant
Current Ireg
(@ Vak = 7.5 V)
(mA)
AC-DC
Current
Tolerance Over
Voltage
Max Junction
Temperature
(°C)
±15%, ±10%
150
SOD-123,
SOT-223
Packages
NSI45xxx
45
1.8
Fixed:
15, 20, 25, 30
NSI50xxx
50
2.0
Fixed:
10, 350
±10%
175
SMC, DPAK
NSIC20xx
120
1.8
Fixed: 20,
30, 50
±15%
175
SMB
1.8
Adjustable
20 to 40
35 to 70
60 to 100
90 to 160
200 to 350*
±15%
150
SOT-223,
DPAK
NSI45xxxJ
45
* Pending 2H12. xxx in the device number represents the current level.
Low Cost T5 LED Tube
Features
•LED Driver: CCR NSIC2050 (120 V, 50 mA)
•Direct AC drive of LEDs
•No leakage current
•Current regulation to protect LEDs
Fuse
AC
Input
Bridge
Rectifier
NSIC2050B
Ipeak
Resources
• Sample Kit: CCR2KIT/S
Page 28
NSIC2050B
Performances
Input Power
(W)
Power
Factor
Driver
Board
Light Output
(Lux)
CCR Direct AC Drive with LEDs
7.1
0.92
6 Parts
3,370
42
LEDs
Ipeak � 100 mA
LED Lighting Solutions
Switching Regulators for AC-DC
Over Power
Compensation
4
4
4
PDIP-7, SOT-2233
22
30
65, 100, 130
4
4
4
PDIP-7, SOT-223, GullWing4
250
11
30
65, 100, 130
4
4
4
PDIP-7, SOT-2233
700
350
11
30
65, 100, 130
4
4
4
PDIP-7, SOT-2233
Current
700
450
11
30
65, 100
4
4
4
PDIP-7, SOT-223, GullWing4
20
Current
700
800
5.6
30
65, 100
NCP1072*
11
Current
700
250
11
30
65, 100, 130
4
4
4
4
PDIP-7, SOT-2233
NCP1075*
19
Current
700
450
11
30
65, 100, 130
4
4
4
4
PDIP-7, SOT-2233
NCP1010
4
Current
700
100
22
NCP1011
11
Current
700
250
NCP1012
11
Current
700
NCP1013
15
Current
NCP1014/155
17
NCP1027/285
4
4
4
Soft-Start
65, 100, 130
Mode
Device
Power
Peak
Min
Switch Current
Typ2
HV
Voltage Limit RDS(on) Startup
(Vdc)
(mA)
(Ω)
(Vdc)
Brownout
Freq Jittering
30
Max
Output
Power1
(W)
Latch
Frequency
Options
(kHz)
Dynamic Self
Supply
Freq Foldback
Switching Regulators for Isolated Flyback and Non-Isolated Converters
4
4
Package(s)
PDIP-73
* Pending 1H12. 1. Maximum Power Output with DSS 2. Typical at 25°C 3. Gullwing package available on Demand 4. Gullwing SMD DIP-7 5. NCP1015 & NCP1028 have no OVP on VCC
1N4007 x 4
Universal
AC Input 4.7 nF
1 mH
MBR350
+
4.7 µF +
400 Vdc
x2
47 k
1W
1.5 nF
1 kV
470 µF
25 V
+
+
10 nF
AC-DC
15, 2 W
MUR160
Only Needed
for Maximum Power
Applications
1N4148A
1k
NCP1014
7
Vmax
2.2 nF
5
2
2N2907
4
8
100
1
200
10 µF
25 V
+
100 pF
Simple
Feedback
Circuit
opto
NCP1014 Configured as a Constant Current Isolated Offline LED Driver
Up to 8 W LED Driver Reference Design for ENERGY STAR® Residential Lighting
This circuit has been specifically optimized to meet the ENERGY STAR SSL Luminaire requirements for residential lighting applications,
which require a minimum power factor of 0.7.
Features
•Isolated flyback based upon NCP1014, power
limited to 8 W
•Power factor > 0.8 @ 115 Vac
•Wide input (90 to 305 Vac)and output operation
voltage 350 – 1000 mA
•Regulated output current
•Protections (open LED, output short circuit)
•Linear dimming control
ON Semiconductor
Applications
•Desk lamps
•Under-cabinet lighting
•Step lighting
•Pendant lights
Resources
•Reference Design: TND371/D
•Evaluation Board: NCP1014LEDGTGEVB
•Design Note: DN06051/D
Page 29
Switching Controllers for AC-DC
Switching Controllers versus Switching Regulators
•Controllers are typically used for power levels > 25 W
•Controllers offer more flexibility in selecting the high voltage MOSFET that is most
suitable for a given application and power output
•Can be used in isolated flyback converters and non-isolated converters
Current
NCP1230
41
Over Voltage
Protection
40, 60, 100
4
4
Package(s)
Comments
250 / 250
–25 to +125
SOIC-8, PDIP-8
—
250
–40 to +125
SOIC-8, PDIP-8
—
4.8
500 / 800
–40 to +125
SOIC-7
•Adjustable Max duty cycle
•± 5% current sense accuracy
4
2.5
500 / 800
–40 to +125
SOIC-8, PDIP-7
—
4
4
4
500 / 500
–40 to +125
SOIC-7
•Timer−based short circuit
protection
•OVP and OVT compensation
4
4
4
4
1000 / 1000
–40 to +125
SOIC-7
•Timer−based short circuit
protection
•OVP and OVT compensation
4
4
4
4
300 / 500
–40 to +125
TSOP-6
•Timer−based short circuit
protection
Over Voltage
Protection
Current
NCP1218
NCP1219
4
Brown-Out
Protection
NCP1203
±0.7
Temperature
(ºC)
Brown-Out
Protection
40, 60, 100
Short Circuit
Protection
Current
Dynamic Self
Supply
NCP1200
Drive
Capability
Source/Sink
(mA)
Short Circuit
Protection
Quasi Resonant
Control
Mode
Soft
Start
(ms)
Dynamic Self
Supply
AC-DC
PWM
Method
Device
Frequency
Jittering
(%)
Soft
Start
(ms)
Drive
Capability
Source/Sink
(mA)
Temperature
(ºC)
Package(s)
Comments
4
4
4
1
500 / 500
–40 to +125
SOIC-8, PDIP-8
—
4
1
500 / 500
0 to +125
SOIC-8
—
4
4
500 / 500
0 to +125
SOIC-8, PDIP-8
Brown out protection
4
1
500 / 500
–40 to +125
SOIC-8, PDIP-8
—
4
3.8
500 / 800
0 to +125
SOIC-8
OVP and OVT protection
65, 100
±11
±7.5
4
Current
100
±6.4
4
NCP1234/6
Current
65, 100
±6
4
4
4
NCP1237/8
Current
65, 100, 130
±6
4
4
NCP1250/1
Current
65, 100, 130
±6
Device
Control
Mode
Frequency
Frequency
Clamp
Clamp
Max ON Time Min OFF Time
(ms)
(ms)
HV Startup
Fixed Frequency
PWM
Method
Switching
Frequency
(kHz)
HV Startup
Switching Controllers for Isolated and Non-Isolated Buck, Buck/Boost Converters
NCP1207A
Current
NO
8
4
NCP1308
Current
NO
10
4
4
4
NCP1337/38
Current
67
35
4
4
4
NCP1377/78
Current
NO
3, 8
4
NCP1379/80
Current
NO
5.9
4
41
4
4
4
4
1. When DSS is used.
Switching Controllers for Non-Isolated Buck Converters D
Device
Vin
(Vac)
Max Output
Power (W)
TRIAC
Dimming
Comments
NCL30000
85 to 305
50
4
Can also be used in isolated single PFC flyback
NCL30002*
85 to 305
50
4
Optimized for high Power Factor applications
LV5026*
85 to 305
30
4
LV5029**
85 to 305
30
•P WM and analog dimming
•C an also be used in isolated flyback
•P WM and analog dimming
•C an also be used in isolated flyback
* Pending 1H12. ** Pending 2H12.
Page 30
LED Lighting Solutions
Non-Isolated 25 W High Power Factor Buck-Boost LED Driver
LED Sense
Features
•90-305 Vac Non-Isolated Buck-Boost Topology
•Maintains tight current regulation over a wide range of LED voltage
•Constant on-time provides high Power Factor and low THD
•90% Efficiency and PF > 0.95
•Line Dimming Capable
•Thermal Foldback with Auto-Recovery
Scaling
Current
Sensor
Mains
Input
LED String
NCL30000
Controller
EMI
Filter
Input Sense
Terminator
Efficiency & Current Regulation versus Line
36
0.98
32
0.96
28
0.94
24
0.92
20
0.90
16
0.88
12
0.86
THD
8
PF
0.84
4
0.82
0
0.80
110
130
150
170
190
210
230
250
270
290
310
100%
600
90%
500
80%
400
70%
300
60%
200
50%
100
40%
Current
30%
0
90
110
130
150
Input Voltage (Vac)
170
190
210
230
250
270
290
310
Input Voltage (Vac)
AC-DC
90
LED Current (mA)
1.00
Power Factor
Input Current THD (%)
40
700
Efficiency (%)
(23 LED Load, 72V nominal at Iout= 350 mA)
Power Factor and THD Versus Line
(23 LED Load, 72V nominal at Iout= 350 mA)
Non-Isolated Offline Buck Controller — LV5026
Features
AC+
Dimmer
LED+
AC–
ACS
LV5026
OUT2
REF_OUT
REF_IN
RT
PWM_D
GND
LED–
VCC
OUT
CS
•Various dimming control (TRIAC, analog & PWM)
•Selectable switching frequency (50 kHz or 70 kHz)
•Low noise switching system
•Short-circuit protection
•Soft start function
•Built-in TRIAC stabilization function
Applications
•Wall sconces
•Task lighting
•Step lighting
•LED bulb replacements
Device
TRIAC
Dimming
Digital (PWM)
Dimming
Analog
Dimming
Improved
Power Factor
Package
LV5026M*
4
4
4
4
SOIC-10
4
4
4
SOIC-10
LV5029M**
* Pending 1H12. ** Pending 2H12.
ON Semiconductor
Page 31
Switching Controllers for AC-DC (continued)
Switching Frequency
(kHz)
Short Circuit
Protection
Brown-Out
Protection
Over Voltage
Protection
NCP1392/3
Voltage
Adjustable to 250
4
4
4
4
NCP1397
Voltage
Adjustable to 250
4
4
4
4
4
Resonant Half
Bridge
Thermal
Shutdown
Control
Mode
PWM
Method
Soft Start
Device
HV Startup
Switching Controllers for Isolated Resonant Half-Bridge Converters
Temperature
(ºC)
Package(s)
4
4
–40 to +125
SOIC-8
Fixed dead time options, PFC okay,
100 ms startup timer
4
–40 to +125
SOIC-16
Enhanced soft start, dual level current protection
Comments
Switching Combo Controllers for Isolated Converters D
Device
Topology
Function
Vin
(Vac)
Max Output
Power (W)
NCP1928*
Isolated Flyback Converter
CRM PFC + fixed frequency flyback converter
85 to 305
60 to 150
•Frequency jittering for softened EMI signature
•Frequency foldback then soft-skip™ for improved performance in standby
NCL30051
Isolated Resonant Half-Bridge
Converter
CRM PFC + half-bridge converter
85 to 305
60 to 250
•Half−bridge stage with 600 V high side gate drive
Comments
* Pending 2H12.
In-Rush Detect
Brown Out
Power Limit
Current Limit
HV Start-up
AC-DC
Overvoltage
Protection
Undervoltage
Protection
Power Factor Correction for AC-DC
Topology
Conduction
Mode
Control
Package(s)
Notes
NCP1607
Non-Isolated Boost
Critical
Voltage
4
4
4
SOIC-8
Enhanced fault protection
NCP1608
Non-Isolated Boost
Critical
Voltage
4
4
4
SOIC-8, PDIP-8
Wide dynamic power range
Device
NCP1611/12
Non-Isolated Boost
CCFF**
Current
4
4
4
NCP1654
Non-Isolated Boost
Continuous
Average Current
4
4
4
NCP1652A
Isolated Single-Stage Flyback
Continuous
Average Current
4
4
NCL30000
Isolated Single-Stage
Flyback, Non-Isolated Buck
Critical
Average Current
4
4
NCL30001
Isolated Single-Stage Flyback
Continuous
Average Current
4
4
Critical
Constant ontime,
Peak current
4
4
NCL30002*
Non-Isolated Buck
4
4
4
4
4
4
**CCFF control scheme combines energy
SOIC-8, SOIC-10
savings with safe handling of fault conditions
4
4
4
SOIC-8, PDIP-8
65/133/200 kHz versions
4
4
SOIC-16
Active clamp option
SOIC-8
TRIAC dimming compliant
SOIC-16
—
SOIC-8
TRIAC dimming compliant
4
4
* Pending 1H12. **CCFF: Current Controlled Frequency Foldback. Note: All devices have a temperature range of –40 to +125 °C.
Constant Current, Constant Voltage References
Device
V (BR) Typ
(V)
Tolerance
(%)
IQ Typ
(mA)
IR Min
(mA)
VCC Max
(V)
Package
NCP4300A
2.6
1
—
80
36
SOIC-8
NCS1002
2.5
0.4
0.4
75
36
SOIC-8
Resources
• Application Note AND8395/D
Page 32
LED Lighting Solutions
Line Dimmable PAR30 LED Lamp
Features
Dimmer
AC
•Input voltage:
Line
•115 V Lamp: 90 - 135 Vac
Input
•230 V Lamp: 180 - 265 Vac
•11 W Nominal Pout (24.5 V @
450 mA)
•8 LEDs in series /3 strings in
parallel
•Power Factor: >0.96
•Efficiency: >83%
•Intended for ENERGY STAR®
requirements for integral LED
lamps v1.4 (115 V version only)
•CRM (Critical Conduction Mode)
isolated flyback topology
•Scalable controller-based architecture
•PFC > 0.9
•TRIAC and trailing edge dimmable
EMI
Filter
VCC
NCL30000
MFP
VCC
COMP
DRV
C1
GND
CS
ZCD
OUT2
IN2+
IN2–
NCS1002
OUT1
IN1–
IN1+
GND
Applications
AC-DC
•Down lights
•LED par bulbs
•Low bay lighting
•LED power supplies
Resources
•Application Notes: AND8448/D, AND8451/D, AND8463/D, AND8462/D
•Design Note: DN05010/D
•Reference Design: TND398/D
•Evaluation Boards:
•NCL30000LED1GEVB: 15 W, 350 mA, 100/115 Vac TRIAC Dimmer
•NCL30000LED2GEVB: 15 W, 350 mA, 220/240 Vac TRIAC Dimmer
•NCL30000LED3GEVB: 17 W, 350 mA, 90 to 305 Vac, Non Dimmable
Performance of PAR30 Lamps
Lamp Version
115
230
ON Semiconductor
RC Damper Present
Input Power (W)
PF
%THD
Output Current
(mA)
Output Volts
(Vdc)
Output Power
(W)
Efficiency
(%)
Yes
12.91
0.98
10.2
452
23.61
10.67
82.7
No
12.72
0.99
6.5
452
23.60
10.67
83.9
Yes
13.00
0.87
23.4
453
23.60
10.69
82.2
No
12.59
0.97
11.2
453
23.44
10.62
84.4
Page 33
LED Power Supply for Street and Area Lighting
Generating the light needed to replace an HID or HPS lamp requires a large array of LEDs. LEDs can be configured in various arrangements
depending on the end product. There are two different approaches:
AC
EMI
Filter
+
Approach 1
One approach converts the AC input into a regulated DC output voltage that
powers multiple parallel LED strips.
NCL30051
CrM
PFC
Fixed
DC
Voltage
HalfBridge
Driver
HouseKeeping
Approach 1
Approach 2
The second approach provides a regulated constant current to drive the LEDs directly, thus eliminating the linear or DC-DC conversion
stage built in to the light strips. This is illustrated in application note AND9040/D and design note DN05015/D, where the NCL30051
is used to convert 90-265 Vac into a constant current in a power factor corrected half-bridge resonant power supply.
AC-DC
AC
Input
EMI
Filter
LBST
DBST
DR1
T1
Cbulk
Features — Approach 2
Vbulk
QBST
QH
Cout
Constant Current
Constant Voltage
LR
DR2
Secondary Side
•Universal Input: 90 – 265 Vac (305 Vac QL
Compensation
VREF
(CCCV)
with component change)
Z
VDD
VCC
•Pout Maximum: 60 W (the NCL30051 is capable of power
PFC
2.5 V
Control
up to 250 W with component changes)
Z
•Power Factor:
PF > 0.9 (50–100% of load with dimming)
House
Half
2.5 V
Keeping Bridge
•Harmonic Content: IEC61000-3-2 class C compliance
Driver
VDD
•Efficiency:
> 90% with Iout = 1000 mA / Vf = 35 to
PLC
Modem
NCL30051
45 V
Ambient
•CC Iout Range:
0.7 – 1.5 A
Light
MCU
Sensor
•Vout Range:
35 – 50 V
Motion/
Approach 2
•Intended for ENERGY STAR® Luminaires v1.1 specification
Occupancy
Sensor
(effective April 01, 2012)
•Protection Features: output open and short circuit protection, over temperature, over current protection – auto recovery, over
voltage protection – input (OVP bulk voltage)
•Dimming
•Two-step bi-level analog
•1 – 10 V analog voltage input, 1 = minimum, 10 V is 100% on
•PWM dimming. Frequency 200 to 400 Hz. Dimming range > 20:1
Page 34
LED Lighting Solutions
BACKLIGHTING
Medium to Large LCD Panel Backlighting
Besides eliminating mercury, the use of LEDs allows the design
of thinner displays, and improves overall power consumption and
lifetime. Integrating an ambient light sensor can further contribute
to energy savings while enhancing the user’s viewing experience.
47 µH
VL
8 to
16 V
4.7 µF/
16 V
Optical Films
LED
VIN
5V
Flat LGP
VOUT
VIN
1 µF/
50 V
SW
1 µF
BACKLIGHTING
As LED performance and cost have improved, they are now
displacing CCFL lamps in medium and large LCD backlighting
applications such as notebooks, monitors, LCD-TVs, personal
navigation systems, photo frames, and medical equipment.
CAT4240
Device
CAT4237
SHDN
GND
FB
1 kΩ
Topology
VIN
(V)
LEDs
Total IOUT Max
(mA)
ISW-LIM
(mA)
VOUT Max
(V)
Dimming
Interface
Package(s)
Inductive Boost
2.0 - 5.5
8
40
450
32
PWM
TSOT-23–5
µQFN-16
TSOT-23–5
NCP5021
Inductive Boost
2.7 - 5.5
8
50
800
28
I2 C
CAT4238
Inductive Boost
2.0 - 5.5
10
30
450
38
PWM
CAT4240
Inductive Boost
2.0 - 5.5
10
300
850
38
PWM
TSOT-23–5
CAT4106
Inductive Boost / Linear
3.0 - 5.5 / 25
10 x 4
700
1000
36
PWM
TSSOP-16, TQFN-16
CAT4026
6-Channel Linear
-0.3 to 7
Varies
External Transistors
PWM, Analog
SO-28
ON Semiconductor
Page 35
6-Channel LED Controller for Large Panel LED Backlighting — CAT4026
The CAT4026 is a large panel LED controller designed to control
6 constant current high voltage LED strings. Control circuitry
monitors the lowest cathode voltage and generates a feedback
control signal. Two approaches can be implemented: either a
voltage feedback signal is fed into an external DC-DC converter;
or a current feedback control is fed directly the main power
supply,* which is usually a half-bridge resonant power supply
Features
converter. Each LED channel current is accurately controlled by
sensing an external resistor and controlling a low cost bipolar
transistor. LED current in all 6 channels can be controlled by
PWM dimming or analog dimming. Fault detection and robust
protection is provided for every possible fault scenario on the
LED strings.
Applications
•Voltage feedback control to external DC-DC converter
•Current feedback control to main power supply half-bridge
resonant converter*
•PWM and analog dimming
•Zero current shutdown mode
•Auto-recovery fault detection (all modes)
•Shorted cathode-ground (SCG) fault protection
•Shorted cathode-anode (SCA) fault protection
•Open cathode-anode (OCA) fault protection
•Over-voltage protection (OVP)
•Thermal shutdown protection
PFC
Tightly Regulated
Dedicated
LLC
Half-Bridge Resonant Converter
Power Supply Reference Design*
•Large LCD panels backlighting (e.g. LED-TV)
•LED general lighting
•High bay lighting
Feedback
BACKLIGHTING
TL431
+
Opto
IFB
CAT4026
Output of Half-Bridge
Resonant Converter
10 k
LLC-OPTO
TL431
1 nF
1.8 V Output
(User Option)
2v5
HI-SENSE
5V
Voltage
Feedback
Option
VDD
hν
IOUT
X6-Diodes
LO SENSE
MSD42W
SHORT
OPEN
NOA1211
Photo
Diode
6-Channel Cathode Bus
ZvSCA
5V
Power
Down
BAS21LT1
PWM
VC IFB OCA C1 C3
VA
VDD
FLT-SCA
FLT-OCA
CAT4026
PWM Dimming Input
SCA
X6-Diodes
VCS
BASE[1:6]
RSET[1:6]
BAS21LT1
6
6
6-Channel Cathode Bus
MJD340
MJF47G
MJD340
MJF47G
6-Channels
Analog Dimming Input
GND
Ambient Light Sensor
* Complete power supply reference design for half-bridge resonant converter also available from www. onsemi.com
Page 36
LED Lighting Solutions
Highly Integrated LED Backlight Controller, Boost Converter and 4 Channel Driver — CAT4106
Features
Applications
• Drives up to 40 (4 x 10) – 36 V per string
• 1 MHz DC-DC boost converter with OVP
• Low dropout LED channels, 500 mV at 175 mA
• Tight channel-to channel current matching
• Up to 2 kHz PWM dimming interface
• Programmable short and open LED detection
• Thermal shutdown
• Exposed pad packaging, TQFN-16 and TSSOP-16
• Notebooks
• Monitors
• Tablets
• Small LCD-TVs
• Test equipment
• Medical instruments
• Touch panels
Resources
• Evaluation Board CAT4106AGEVB
VL
SW
300mV
VFMIN
FAULT
OVP
Controller
CTRL
1A
1Ω
FB
Shutdown
Delay
LED2
System
EN/SD
LED3
LED4
I1
PWM_DIM
LED1
LED1
Supply
EN/DIM
µC Diagnostics
Ctrl/Fault
Detector
1MHz PWM
Controller
VIN
LEDn
BACKLIGHTING
CAT4106
VFMAX
LED
Cluster
N_Series
M_Parallel
I2
I3
I4
0 - 175 mA
Drive Control
IRSETx100
200 kΩ
RSET
ON Semiconductor
GND
PGND
Page 37
High Voltage LED Driver — NCP1294
LEDs are replacing CCFL lamps as the light source of choice
for large LCD panel backlighting. The circuit described in this
design note provides constant current to a long string of LEDs (Vf
ranging from 190 to 230 V) from a single 24 V input. A constant
current regulated flyback topology was chosen over a multi-stage
boost or a boost plus multiple linear driver channels to improve
overall system efficiency and ensure accurate current matching
of the LEDs. Beyond being mercury free, when properly driven
and controlled, LEDs can offer a >10x improvement in dimming
range over traditional CCFL dimming. This superior dimming
range is demonstrated in the design note. This design, based on
the robust, flexible NCP1294 controller includes open LED and
shorted output protection for safe handling of fault conditions.
Features
Applications
• 1 MHz frequency capability
• 1 A sink/source gate drive
• Programmable pulse-by-pulse overcurrent protection
• Programmable soft start
Resources
• Monitors
• LCD-TVs
• Test equipment
• Medical instruments
• Touch panels
• Design Note DN06062/D
90%
0.12
80%
0.10
Efficiency
70%
BACKLIGHTING
LED Current (A)
Efficiency
60%
50%
40%
30%
0.08
0.06
24Vin, 235Vout Current
26,4Vin, 235Vout Current
0.04
21.6Vin, 235Vout Current
24Vin,180Vout Current
26.4Vin,180Vout Current
20%
21.6Vin,180Vout Current
0.02
10%
0%
0%
20%
40%
60%
80%
100%
0
0%
20%
40%
60%
Duty Cycle
Duty Cycle
Efficiency vs Dim Duty Cycle
LED PWM Dimming Curve
80%
100%
24 ±2 Vdc
NCP1294
PWM
Dimming
Control
Reference Design Block Diagram
Page 38
LED Lighting Solutions
COMMUNICATION
& SENSING
Smart Lighting
Smart Lighting involves communication and sensing functions to
be able to remotely control (turn on or off, dim or change color)
and monitor (remote diagnostic) one or multiple light fixtures in a
building, a street or simply at home. Smart Lighting also provides
a light fixture with the intelligence to make adjustments based on
conditions such as occupancy or ambient light.
Light fixtures in an office building can be controlled by using
the KNX network over an existing twisted pair wiring using KNX
transceivers (on page 41).
Ambient Light Sensors such as the NOA1302 (on page 43) and
PIR (Passive Infrared) Detectors such as the NCS36000 (on page
42) can also be used to control the light output of street lighting.
Communication can be implemented wirelessly or by using
the existing powerline infrastructure. Powerlines make up the
largest copper infrastructure in the world. There are electrical
outlets at every corner of a home or office building, making it
an all-encompassing network. Given that all lighting fixtures
connect to a powerline to convert electricity to light, Powerline
Communication (PLC) has become a logical way to serve as the
primary communication and control link.
RF
NCS36000
NCN49597
Ambient
Light Sensor
MCU
Motion/Occupancy
Sensor
Dimming
Control
NOA1302
NCL30160
DC
NCL30051
PFC
AC
Isolated
DC-DC
Fixed DC
Voltage
24-80 Vdc
Buck
DC
Converter
LED
String
with Constant Current
NCL30160
DC
Buck
DC
Converter
LED
String
with Constant Current
NCL30160
DC
Buck
DC
Converter
LED
String
with Constant Current
ON Semiconductor
Page 39
COMMUNICATION &
SENSING
For example, two-way communication
between a centralized control
center and street lights can be
implemented to form a fully networked
intelligent street light system. This
enables municipalities, power utility
companies and commercial entities to
remotely dim the light output of their
street lights, and therefore to reduce
the overall energy consumption
of their street light network. Twoway communication can be easily
implemented on the power line by
using PLC modems (on page 40).
Powerline
Modem
Powerline Communication (PLC) Modems
Features
•Robust narrowband PLC modem up to 10kBauds
•Compliant with stringent international standards (FCC,
CENELEC, IEC61334-5-1)
•Operation on Low Voltage and Medium Voltage network
•Programmable 32-bit ARM Cortex M0 MCU
•Embedded PHY + MAC
•Best in class BOM cost
•Ultra Low Power
Max
Baudrate Number
Integrated
Program
per
of
Cenelec Embedded
Power
Max
Auto
Robust
Programmable Memory
Device
Channel Channels Band
MCU
Amplifier Temp Operation Baudrate Mode Packages
Software
Option
AMIS30585 1200
1
A
ARM7
—
85 °C AC Only
—
—
PLCC
—
ROM
AMIS49587 2400
1
A,B
ARM7
—
85 °C AC Only
—
—
PLCC, QFN
—
ROM
NCN49597
4800
2
A,B,C,D CortexM0
—
125 °C AC, DC*
Yes
Yes
QFN
Yes
ROM
RAM
COMMUNICATION &
SENSING
NCN49599*
4800
2
A,B,C,D
CortexM0
Yes
125 °C
AC, DC
Yes
Yes
QFN
Yes
ROM
RAM
Available Embedded
Software Stack
Applications
IEC61334-5-1 PLAN
Metering
IEC61334-5-1 PLAN +
Metering
IEC61334-5-1 PLAN +
Metering
IEC61334-5-1 PLAN +
Metering
Multicarrier IEC61334-5-1 PLAN + Metering, PLAN backward compatible
Single/ Multicarrier KNX
Solar, Lighting, HAN, IHD
Full Custom
Smart Grid,others
IEC61334-5-1 PLAN +
Metering
IEC61334-5-1 PLAN +
Metering
Multicarrrier IEC61334-5-1 PLAN + Metering, PLAN backward compatible
Single/ Multicarrier KNX
Solar, Lighting, HAN, IHD
Full Custom
Smart Grid, others
* Pending 2H12.
Page 40
LED Lighting Solutions
KNX Transceivers
KNX is a standardized (EN 50090, ISO/IEC 14543), OSI-based
network communications protocol for intelligent buildings. KNX is
the successor to, and convergence of, three previous standards:
KNX Open Standards
the European Home Systems Protocol (EHS), BatiBUS, and the
European Installation Bus (EIB or Instabus).
Applications
•EN 50090: European Standard
•ISO/IEC 14543-3: International Standard
•GB/Z 20965: Chinese Standard
•ANSI/ASHRAE 135: US Standard
DC=DC Converters
•Connects appliances and sensors, especially for climate
and light control to the 9600 Baud KNX twisted pair (TP)
bus inside a building
•TP bus provides data communication and power supply
KNX Host Interface
Device
Fixed 3.3 V
Adj 3.3 to 21 V
20 V
Regulator
Triple Power
Mode
Embedded
MAC + LLC1
Digital SPI/UART
Analog UART
Package
Comment
NCN5120*
4
4
4
4
4
4
4
QFN-40
Full Feature Set
NCN5121**
4
4
4
4
4
QFN-40
—
NCN5110**
4
4
QFN-32
—
NCN5111**
4
4
QFN-32
—
4
4
4
* Pending 1H12. **Pending 2H12. Note 1: LLC = Logical Link Control layer of the OSI-based communications network.
230 V
TP (Twisted Pair)
Physical
Communication
Media
Socket
ON Semiconductor
Lighting
Sun
Blinds
Heating
230 V
PL (Power-Line)
230 V
RF (Radio Frequency) or IR (Infrared)
Security
Washing
Machine
Oven
Page 41
COMMUNICATION &
SENSING
Main
Distribution
Motion Detector Passive Infrared Controller (PIR) — NCS36000
•Passive infrared controller circuit for the lighting and occupancy sensing market
•Amplifies and conditions signal from PIR sensor
Features
Benefits
•3.0 – 5.75 V operation
•Integrated low noise 2-stage amplifiers
•Internal voltage reference to drive sensor
•Internal oscillator with external RC
•Single or dual pulse detection
•Digital filter to minimize false alarms
•Direct drive of LED and relay
•Lower BOM cost than comparable discrete solutions
•Extremely flexible solution
•Customer can customize digital filtering
•Customer can customize analog processing
•Designed for wide range of occupancy sensors
VSS VDD
VREF
LDO &
Voltage
References
OP1_P
OP1_N
OP1_O
OP2_N
OP2_O
Amplifier
Circuit
OSC
System
Oscillator
2
MODE
Window 2
Comparator
Digital
Control
Circuit
xLED_EN
LED
OUT
NCS36000
Old Solution
NCS36000 Solution
COMMUNICATION &
SENSING
Page 42
LED Lighting Solutions
Ambient Light & Proximity Sensors
Features
Device
Description
Vin = 3.3 V
hν
1k
VDD
SDA
NOA1302
1 µF
SCL
VSS
1k
SDA
MCU
LED
Drivers
LEDs
SCL
Operating
Voltage Range
(V)
Operating
Temp Range
(°C)
Light
Sensitivity Range
(Lux)
Interface
Package
NOA1211
Analog Ambient Light Sensor with Dark Current
Compensation
2.0 to 5.5
–40 to +85
~0.01 to 100K
Analog
CUDFN-6
NOA1212*
Analog Ambient Light Sensor with Dark Current
Compensation and high gain mode
2.0 to 5.5
–40 to +85
~0.01 to 100K
Analog
CUDFN-6
NOA1302*
Digital Ambient Light Sensor with I2C Interface
3.0 to 3.6
–40 to +85
0.4 to 100K
I2C
(Standard and Fast Modes)
CTSSOP-8
NOA1305*
Digital Ambient Light Sensor with I2C Interface
and Dark Current Compensation
2.0 to 3.6
–40 to +85
0.125 to 100K
I2C
(Standard and Fast Modes)
CUDFN-6
NOA1306**
Digital Ambient Light Sensor with I2C Interface
and high gain mode
2.0 to 3.6
–40 to +85
0.01 to 20K
I2C
(Standard and Fast Modes)
CUDFN-6
NOA1312**
Digital Ambient Light Sensor with I2C Interface,
high precision
2.4 to 3.6
–40 to +85
~0.1 to 16K+
I2C
(Standard and Fast Modes), 3 slave addresses
CUDFN-6
NOA2301**
Digital Proximity Sensor with Interrupt
2.3 to 3.6
–40 to +85
—
I2C
(Standard, Fast and High-Speed Modes)
CUDFN-6
NOA2302**
Digital Slave Proximity Sensor with Interrupt
2.3 to 3.6
–40 to +85
—
I2C
(Standard, Fast and High-Speed Modes)
CUDFN-6
NOA3301*
Digital Proximity Sensor with Ambient Light Sensor
and Interrupt
2.3 to 3.6
–40 to +85
~0 to 64K
I2C
(Standard, Fast and High-Speed Modes)
CUDFN-8
NOA3402*
Digital Proximity Sensor and Ambient Light Sensor
with Pseudo Log PWM
2.3 to 3.6
–40 to +85
~0 to 64K
I2C
(Standard, Fast and High-Speed Modes)
CUDFN-8
NOA3309**
Digital Proximity Sensor with Ambient Light Sensor
and IR emitter
2.3 to 3.6
–40 to +85
~0 to 52K
I2C
(Standard, Fast and High-Speed Modes)
8-Lead
* Pending 1H12. ** Pending 2H12.
ON Semiconductor
Page 43
COMMUNICATION &
SENSING
•Design flexibility/customization (i.e., EEPROM if
desired for trimming)
•0.0125 lux detection with customizable filtering
(i.e., Photopic Light Response)
•Dark current and temperature compensation
•Lowest power consumption per resolution bit
•I2C Interface (including High Speed Mode) and
no effect on bus during power down
P ROT ECTION
LED String Protection — NUD4700
The preferred method of driving LEDs is to have them in strings
of LEDs in series, so that currents in the strings are matched for
equal brightness. Although LEDs are very reliable, if any single
LED were to fail OPEN, the entire string goes dark, because the
LEDs within a string are connected in series. This is unacceptable
for high-reliability applications such as street lighting. To solve
this issue the NUD4700, from ON Semiconductor, is placed
across each LED, and functions as a shunt bypass protector in
the event of an LED failing as an OPEN circuit. This ensures that
the remainder of the string stays lit.
Key Requirements
•Low ON-state resistance, high OFF-state resistance and
high reliability
AC/DC
Converter
Features
•High ON-state current capability
•Low off-state leakage
•Ability to auto-reset to off-state if LED heals
•low and repeatable response time
NUD4001
Current
Source
NUD4700
Control
Circuit
Benefits
NUD4700
•High reliability, enables longevity of string and fixture
•Capable of operating in high current strings
Control
Circuit
High Reliability Applications
NUD4700
•Street lights
•Tunnel lighting
•Architectural lighting
•High-bay lighting
•Train and runway lights
Control
Circuit
NUD4700
Control
Circuit
Open
LED
NUD4700
Control
Circuit
NUD4700
Key Specifications
Parameter
Symbol
Typ Value
Off-state leakage (VAnode = 5 V)
ILEAK
100 mA
PROTECTION
Breakover Voltage (IBR = 1 mA)
VBR
7.5 V
Holding Current (VAnode = 10 V, Iinitial = 100 mA)
IH
6.0 mA
Latching Current (VAnode = 10 V)
IL
35 mA
On-State Voltage (IT = 350 mA)
On-State Voltage (IT = 750 mA)
On-State Voltage (IT = 1000 mA)
Page 44
Control
Circuit
1.0 V
VT
1.0 V
1.0 V
LED Lighting Solutions
In-Module ESD Protection of High Brightness LEDs
Die Level Products for Co-Packaging With HBLED under Optical Dome
During the assembly process and during end-user operation,
sensitive HBLED die are susceptible to harmful electro-static
discharge (ESD) strikes. Further, during assembly in lamps
and light-fixtures, HBLED modules are subject to high-voltage
ESD strikes that can destroy them. In-module silicon transient-
voltage suppressor (TVS) die provide the protection needed
to eliminate failures and enable the creation of robust HBLED
modules for various applications. In-module silicon TVS die
come in two forms: as sub-mounted protectors and as sidemounted die.
Key Requirements
•ESD protection capability, small footprint for sidemounted protector, low profile
Features
•Ability to withstand high levels of ESD strikes
•Low thermal resistance
•Small footprint (side-mount)
•Low profile (side-mount)
•Ability to protect HBLED die during module assembly,
and HBLED modules during fixture assembly
Benefits
•Prevention of HBLED failure during module assembly
and fixture assembly
•Thermal protection and heat-dissipation capability
(sub-mount)
•Minimal light-absorption (side-mount)
Sub-Mounted Silicon Protector
Typical Specifications for Side-Mounted Protector
Parameter
Symbol
Typ Value
Wafer diameter (for the case of wafer-sales)
—
150 mm
Die length
L
250 mm
Die width
W
250 mm
—
190 mm
VCL+
+7.5 V
Negative polarity breakdown voltage (current = 1 mA)
VCL–
–7.5 V
Leakage Current (at 4 V, 25°C)
ILEAK
100 nA
ESD Withstand Voltage (HBM)
VESD
±8 kV
Side-Mounted Silicon Protector
PROTECTION
Bondpad diameter
Positive polarity breakdown voltage (current = 1 mA)
ON Semiconductor
Page 45
In-Module TVS Solutions for HBLED Protection
Capability
Die-thickness
Top
Electrodes
Back-Metal
Delivery
Electrical
Performance
Options
Details
100 mm, 150 mm, 200 mm, and 250 mm
Sub-mounts and side-mounts
(4, 6, 8 and 10 mils)
—
Aluminium
—
Copper
—
Gold
—
Aluminium-free Gold
No Aluminium in the system
Gold
With a thin TiW barrier
Gold-Tin (Au-Sn)
80%-20% ratio by weight
TiNiAg
—
Bare Silicon
For same-side electrodes
Unsawn wafers
Customer responsible for backmetal & saw
Sawn wafers on blue Nitto tape and frame
—
Sawn wafers on UV tape and frame
—
Unidirectional TVS: {+V Z, -1V}
See schematic
V Z ranges from 5 V to 200 V
Bidirectional TVS {+V ZP, -V ZN }
See schematic
V ZP and V ZN range from 7 V to 200 V
HBM
IEC 61000-4-2
ESD standards supported
LED
TVS
Sub-Mounted ESD and Thermal Protector
Unidirectional
TVS
LED
String
Bidirectional
TVS
LED
String
LED
+
–
+
–
ESD
Conventional Side-Mounted ESD Protector
ESD
LED
Flip-Chip, Side-Mounted ESD Protector
(Wirebonds are Optional)
PROTECTION
Page 46
LED Lighting Solutions
LED LIGHTING AT www.onsemi.com
www.onsemi.com/led
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ON Semiconductor
Page 47
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Jan-12
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BRD8034/D