BCD AP1681MTR-G1 Off-line primary side regulation controller for dimmable led driver Datasheet

Preliminary Datasheet
Off-line Primary Side Regulation Controller for Dimmable LED Driver
General Description
Features
The AP1681 is a powerful high performance AC/DC
power supply controller for dimmable LED lighting
applications. The device uses Pulse Frequency
Modulation (PFM) technology to regulate output
current according to the wall dimmer conduct angle.
The AP1681 achieves wide dimming range without
visible flicker and is compatible with diverse
dimmers.
•
The AP1681 features low start-up current, low
operation current and high efficiency. It also has rich
protection functions including over voltage, short
circuit, over current and over temperature protections.
•
•
•
•
•
•
•
•
•
•
•
•
The AP1681 is available in SOIC-8 package.
AP1681
Primary Side Control for Output Current
Regulation Without Opto-coupler and Secondary
CV/CC Control Circuitry
Adjustable Full Brightness and Full Dimming
Setting
Wide Dimming Range From 100% to 1%, Down
to Full Darkness
Adjustable Dimming Curve for Human Eye
Sensitivity
No Visible Flicker
Connectivity with Analog / Digital / Hybrid
Dimming Mode
Built-in Acceleration Start
Adjustable Soft-start Timing
CV Open-load Regulation and Reload Detection
Over Voltage and Short Circuit Protection
Over Temperature Protection
Over Current Protection
Maximum Switch On-time Protection
Applications
•
Dimmable LED Driver Suit for Leading-edge
Dimmer, Trailing-edge Dimmer, R Type, R-C
Type or R-L Type Dimmer
SOIC-8
Figure 1. Package Type of AP1681
Jul. 2011
Rev. 1. 2
BCD Semiconductor Manufacturing Limited
1
Preliminary Datasheet
Off-line Primary Side Regulation Controller for Dimmable LED Driver
AP1681
Pin Configuration
M Package
(SOIC-8)
DIM
1
8
VCC
RD
2
7
OUT
RI
3
6
GND
FB
4
5
CS
Figure 2. Pin Configuration of AP1681 (Top View)
Pin Description
Pin Number
Pin Name
1
DIM
Dimming control signal input
2
RD
Full brightness level setting
3
RI
Full dimming level setting
4
FB
The feedback voltage sensing from the auxiliary winding
5
CS
Primary current sensing
6
GND
Ground. Current return for gate driver and control circuits of the IC
7
OUT
Gate driver output
8
VCC
Supply voltage of gate driver and control circuits of the IC
Jul. 2011
Function
Rev. 1. 2
BCD Semiconductor Manufacturing Limited
2
Preliminary Datasheet
Off-line Primary Side Regulation Controller for Dimmable LED Driver
AP1681
Functional Block Diagram
VCC
8
8V
FB_OVP
COMP
1.75V
FB
4
COMP
SHORT_OCP
VCC_OVP
FB_OVP
OTP
0.1V
Reference
VCC_OVP
Tonsec
Detector
CC_CTRL
CS
pro
Demag
COMP
COMP
4V
Protection
& Latch
FB_ACC
Tons
Constant
Current
Control
CC_CTRL
CV_CTRL
5
Regulator
&
Bias
UVLO
CC_ON
pro
COMP
SHORT_OCP
4V
pfm
R
CC_ON
Driver
7
OUT
Q
S
0.5V
COMP
PEAK_CTRL
6
S
DIM
1
Dimming Control
2
RD
Q
GND
CC_CTRL
R
3
RI
Figure 3. Functional Block Diagram of AP1681
Jul. 2011
Rev. 1. 2
BCD Semiconductor Manufacturing Limited
3
Preliminary Datasheet
Off-line Primary Side Regulation Controller for Dimmable LED Driver
AP1681
Ordering Information
AP1681
-
Circuit Type
G1: Green
Package
M: SOIC-8
Package
Temperature
Range
SOIC-8
-40 to 105°C
TR: Tape & Reel
Blank: Tube
Part Number
Marking ID
Packing Type
AP1681M-G1
1681M-G1
Tube
AP1681MTR-G1
1681M-G1
Tape & Reel
BCD Semiconductor's Pb-free products, as designated with "G1" suffix in the part number, are RoHS compliant
and green.
Jul. 2011
Rev. 1. 2
BCD Semiconductor Manufacturing Limited
4
Preliminary Datasheet
Off-line Primary Side Regulation Controller for Dimmable LED Driver
AP1681
Absolute Maximum Ratings (Note 1)
Parameter
Symbol
Value
Unit
Power Supply Voltage
VCC
-0.3 to 30
V
Driver Output Current
IOUT
±300
mA
VRD, VRI,
VDIM, VCS
-0.3 to 7
V
VFB
-40 to 10
V
TJ
150
ºC
Storage Temperature
TSTG
-65 to 150
ºC
Lead Temperature (Soldering, 10 sec)
TLEAD
300
ºC
Power Dissipation at TA=50°C
PD
0.65
W
Thermal Resistance
(Junction-to-Ambient)
θJA
150
°C/W
ESD (Machine Model)
200
V
ESD (Human Body Model)
4000
V
Voltage at RD, RI, DIM, CS
FB Input Voltage
Operating Junction Temperature
Note 1: Stresses greater than those listed under “Absolute Maximum Ratings” may cause permanent damage to
the device. These are stress ratings only, and functional operation of the device at these or any other conditions
beyond those indicated under “Recommended Operating Conditions” is not implied. Exposure to “Absolute
Maximum Ratings” for extended periods may affect device reliability.
Recommended Operating Conditions
Parameter
Symbol
Min
Max
Unit
Power Supply Voltage
VCC
10.8
21.5
V
Ambient Temperature
TA
-40
105
ºC
Jul. 2011
Rev. 1. 2
BCD Semiconductor Manufacturing Limited
5
Preliminary Datasheet
Off-line Primary Side Regulation Controller for Dimmable LED Driver
AP1681
Electrical Characteristics
VCC =15V, TA=25°C, unless otherwise specified.
Parameter
Symbol
Conditions
Min
Typ
Max
16.5
19
21.5
7.2
9
10.8
1.7
10
900
1100
Unit
UVLO Section
Start-up Threshold
Minimal Operating Voltage
VTH (ST)
VOPR (Min)
After turn on
V
Standby Current Section
Start-up Current
IST
VCC=VTH (ST)-0.5V,
Before start up
Operating Current
ICC
Static
700
µA
Drive Output Section
IGD-SOURCE=20mA
VCC=12V
IGD-SINK=20mA
VCC=12V
Output High Level Voltage
VOH
Output Low Level Voltage
VOL
Output Voltage Rise Time
tR
CL=1nF
120
Output Voltage Fall Time
tF
CL=1nF
Output Clamp Voltage
VO-CLAMP
UVLO Saturation Voltage
VUVLO
Maximum Switch On-time
tONP_MAX
IGD-SOURCE=5mA
VCC=20V
VCC=0 to VCC–ON
ISINK=10mA
8
V
1
V
220
320
ns
30
50
90
ns
11
13
15
V
1
V
µs
16.5
DIM Input Section
∆VRI/∆VDIM
Voltage Gain to RI
-1.2
-1.1
-1.0
Internal Source Current
11
20
35
µA
Reload Threshold
0.8
1
1.25
V
1.3
1.5
1.75
V
RD and RI Section
RD Pin Voltage
VRD
Maximum RD Current
150
µA
Maximum RI Current
250
µA
Current Sense Section
Current Sense Voltage
Maximum CS Current
VCS
450
VDIM=0
Leading Edge Blanking
Jul. 2011
Rev. 1. 2
500
560
mV
120
µA
600
ns
BCD Semiconductor Manufacturing Limited
6
Preliminary Datasheet
Off-line Primary Side Regulation Controller for Dimmable LED Driver
AP1681
Electrical Characteristics (Continued)
VCC =15V, TA=25°C, unless otherwise specified.
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
3.0
4.0
5.0
V
1.0
2
3.0
µA
1.35
1.75
2.15
V
6.5
8
9.5
V
Feedback Input Section
CV Feedback Threshold
VFB-CV
FB Pin Input Leakage
Current
Acceleration Start
Threshold
VFB=4V
IFB
Over Voltage Protection
VFB-OVP
Over Temperature Protection Section
Shutdown Temperature
Temperature Hysteresis
140
o
20
o
C
C
Typical Performance Characteristics
10.0
Minimal Operating Voltage (V)
19.0
Start-up Voltage (V)
18.8
18.6
18.4
18.2
18.0
-40
-20
0
20
40
60
80
100
9.0
8.5
-40
120
o
-20
0
20
40
60
80
100
120
o
Ambient Temperature ( C)
Ambient Temperature ( C)
Figure 4. Start-up Voltage vs. Ambient Temperature
Jul. 2011
9.5
Figure 5. Minimal Operating Voltage vs.
Ambient Temperature
Rev. 1. 2
BCD Semiconductor Manufacturing Limited
7
Preliminary Datasheet
Off-line Primary Side Regulation Controller for Dimmable LED Driver
AP1681
Typical Performance Characteristics (Continued)
2.2
940
920
Operating Current (µA)
Start-up Current (µA)
2.0
1.8
1.6
900
880
860
840
820
1.4
-40
-20
0
20
40
60
80
100
800
-40
120
-20
0
20
40
60
80
100
120
o
o
Ambient Temperature ( C)
Ambient Temperature ( C)
Figure 7. Operating Current vs. Ambient Temperature
Figure 6. Start-up Current vs. Ambient Temperature
540
1000
Current Sense Voltage (mV)
900
Operating Current (µA)
800
700
600
500
400
300
200
520
500
480
100
0
460
0
5
10
15
20
25
30
22
24
26
28
30
Supply Voltage (V)
Supply Voltage (V)
Figure 8. Operating Current vs. Supply Voltage
Jul. 2011
20
Figure 9. Current Sense Voltage vs. Supply Voltage
Rev. 1. 2
BCD Semiconductor Manufacturing Limited
8
Preliminary Datasheet
Off-line Primary Side Regulation Controller for Dimmable LED Driver
AP1681
Typical Performance Characteristics (Continued)
4.4
530
4.3
CV Feedback Threshold (V)
Current Sense Voltage (mV)
520
510
500
490
4.1
4.0
3.9
480
470
-40
4.2
-20
0
20
40
60
80
100
3.8
-40
120
-20
0
20
40
60
80
100
120
o
Ambient Temperature ( C)
Ambient Temperature ( C)
Figure 10. Current Sense Voltage vs.
Ambient Temperature
Figure 11. CV Feedback Threshold vs.
Ambient Temperature
o
9.0
4.3
8.9
Over Voltage Protection (V)
CV Feedback Threshold (V)
4.2
4.1
4.0
3.9
3.8
3.7
3.6
20
8.7
8.6
8.5
8.4
8.3
8.2
8.1
22
24
26
28
8.0
-40
30
-20
0
20
40
60
80
100
120
o
Supply Voltage (V)
Ambient Temperature ( C)
Figure 12. CV Feedback Threshold vs.
Supply Voltage
Jul. 2011
8.8
Figure 13. Over Voltage Protection vs.
Ambient Temperature
Rev. 1. 2
BCD Semiconductor Manufacturing Limited
9
Preliminary Datasheet
Off-line Primary Side Regulation Controller for Dimmable LED Driver
AP1681
Typical Performance Characteristics (Continued)
15
14
Output Clamp Voltage (V)
FB Input Leakage Current (µA)
3.0
2.5
2.0
1.5
13
12
11
1.0
-40
-20
0
20
40
60
80
100
10
20
120
22
24
26
28
30
Supply Voltage (V)
o
Ambient Temperature ( C)
Figure 14. FB Input Leakage Current vs.
Ambient Temperature
Figure 15. Output Clamp Voltage vs.
Supply Voltage
1.70
RD Pin Voltage (V)
1.65
1.60
1.55
1.50
1.45
-40
-20
0
20
40
60
80
100
120
o
Ambient Temperature ( C)
Figure 16. RD Pin Voltage vs. Ambient Temperature
Jul. 2011
Rev. 1. 2
BCD Semiconductor Manufacturing Limited
10
Preliminary Datasheet
Off-line Primary Side Regulation Controller for Dimmable LED Driver
AP1681
Typical Application
EE16
L=1.43mH
VREC
120Vac
60Hz
47nF
Dimmer
EE16
L=4.5mH
~ +
~
115T
VBUS
47k
22nF
11T
470k
1A/600V
GND
ZCD
560k
3N60
100pF
630V
GD
47
MULT
3.3k
+ 6.8 F
350V
CS
1nF
VCC COMP INV
680k
330nF
0.47 F
2R
AP1661
560k
680k 680k
16k
BAV20
SR
3A/150V
220 F
35V
AP1681 LED Application:
330k
Dimmable LED Driver
Input: 120Vac/60Hz
18W Power
Output: 8 LEDs, 26VLOAD
5.0mA to 550mA
32 VOPEN
330k
VOUT
BAV20
220k
47k
14T
2.2nF
630V
φ=0.3
68k
95T
0.16×3
19T
+
φ=0.4
27k
TIW
270k
10k
0.47 F
VCC
FR105
EF20
L=2.54mH
FB
100
OUT
100k
4N60
Y2
1.5nF 3kV
DIM
1 F 16k
CS
0.47 F
3.0k
RD
RI
GND
1.3R
AP1681
51k
100k
Figure 17. Typical Application of AP1681
Jul. 2011
Rev. 1. 2
BCD Semiconductor Manufacturing Limited
11
Preliminary Datasheet
Off-line Primary Side Regulation Controller for Dimmable LED Driver
AP1681
Mechanical Dimensions
Unit: mm(inch)
R0.150(0.006)
SOIC-8
Jul. 2011
Rev. 1. 2
BCD Semiconductor Manufacturing Limited
12
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