LITIX™ Basic Family Demoboards

LITIX™ Basic
Family Demoboards
LITIX_V1
08.02.2014
ATV BP LI
www.infineon.com/litix-basic-demoboards
LITIX™ Basic
Demoboards
 LITIX™ Basic – Family Product Overview
 LITIX™ Basic – Family Demoboards
2015-02-09
Copyright © Infineon Technologies AG 2015. All rights reserved.
Page 2
LITIX™ Basic
Demoboards
 LITIX™ Basic – Family Product Overview
 LITIX™ Basic – Family Demoboards
2015-02-09
Copyright © Infineon Technologies AG 2015. All rights reserved.
Page 3
Infineon® Basic LED Driver Family
15 linear current sources with scalable feature set
Block diagram
VBATT
VS
10kW
Internal
supply
EN
Thermal
protection
Output
control
OUT3
OUT2
Feature Set
Basic features
 1 to 3 output channels; typ. 60 to 180mA
 Output current adjustable (ext. low power Rset)
 Wide supply voltage range 5.5…40V
 Over Load and Over Temperature protection
 PWM via external PWM signal via EN or VS
OUT1
IN_SET
RSET
Current
adjust
Basic LED Driver
GNDS
GND
GND
Example TLD1310EL
Optional features
 N-1 or Open Load and Short Circuit detection
 Diagnosis enable feature
 Integrated PWM dimming engine to provide two
LED brightness levels only with RC-network
 Matrix setup with DC/DC buck or boost converter
– Infineon® Dynamic Overhead Control
System Benefits





Scalable feature set for dimming and diagnosis
Pin-to-pin footprint compatibility
Reduced system complexity
Reduced effort for design adaptations
Increased lifetime for LED and driver by
integrated protection
2015-02-09
Package

PG-SSOP14 Exposed Pad
Copyright © Infineon Technologies AG 2015. All rights reserved.
Page 4
Infineon® Basic LED Driver - a modular & flexible
family of 15 devices with scalable feature set
Input
Output
3 IN
3 OUT
TLD2310
1 IN
3 OUT
TLD1310
1 IN
1 OUT
TLD2311
OL & SC
TLD1312
PWMI
TLD1311
N-1
TLD1120
parallel
outputs
1ch/180mA
TLD1313
OL & SC
TLD1121
single
outputs
3ch/60mA
+ PWMI
+ N-1
TLD2314
TLD2326
OL & SC, DEN
Matrix, OL&SC
TLD1314
TLD1315
OL & SC, DEN
PWMI, N-1
TLD1124
OL & SC
OL & SC, DEN
+ OL & SC
+ OL & SC
+ DEN
TLD1326
Matrix, N-1
& PWMI
TLD1125
PWMI, OL&
SC
+ PWMI
+ N-1
or
+ OL & SC
+ Matrix
+ N-1 & PWMI
or
+ OL & SC
F e a t u r e s
2015-02-09
Copyright © Infineon Technologies AG 2015. All rights reserved.
Page 5
Infineon® Basic LED Driver Family
Block Diagram Overview
 Load current can be adjusted by
external SET-resistor RSET:
I OUT
k*

RSET
* According to data sheet parameter “IOUT *
RSET gain factor”, typ. 750 for 3 channel devices,
typ. 2250 for single channel devices
2015-02-09
Per channel up to
120mA!
Thermal limits to
be considered!
Copyright © Infineon Technologies AG 2015. All rights reserved.
Page 6
Infineon® Basic LED Driver Family
Diagnosis via SMART IN_SET-Pin
 SMART IN_SET - Dual Function Pin

Output current setting

Diagnostic feedback
VIN_SET
VIN_SET(OL/SC/N-1)max
Diagnostic voltage range
VIN_SET(OL/SC/N-1)min
VIN_SET(ref)max
Normal operation and high temperature current
reduction range
VBATT
VS
Microcontroller
(e.g.
XC866)
Internal
supply
EN
Thermal
protection
Output
control
OUT3
OUT2
RSET/2
OUT3*
RSET/2
OUT1
IN_SET3
IN_SET2 Current
IN3
IN_SET1
OUT2*
adjust
Basic LED Driver
IN2
Status
ST
GND
OUT1*
IN1
* Open Drain
2015-02-09
Copyright © Infineon Technologies AG 2015. All rights reserved.
Page 7
Infineon® Basic LED Driver Family
Diagnosis via ST-Pin and N-1 Diagnosis
Vbat
BCM
VBB
channel 1
load current
sense
internal
power
supply
logic
ESD
protection
clamp for
inductive load
gate control
&
charge pump
open load
detection
IN1
IS1
 From BCM one wire for each function
 No Bus interface
 For diagnosis purpose LED module current consumption needs
to be very low (typ. <10mA)
 Solution: Infineon® Basic LED N-1 or OL & SC Diagnosis
PROFET
multi step
load current
limitation
OUT1
temperature
sensor
SEN
channel 2
control and protection circuit
equivalent to
channel 1
IN2
IS2
OUT2
RGND
GND
VBATT
Cmod=2.2µF
VS
VS
ISO-Pulse
protection circuit
depending on
requirements
CVS=4.7nF
Internal
supply
CVS=4.7nF
DEN Diagnosis
enable
Output
control
Internal
supply
DEN Diagnosis
4.7nF** 4.7nF** 4.7nF**
enable
CVS
Output
control
4.7nF** 4.7nF** 4.7nF**
OUT3
OUT3
Thermal
protection
Thermal
protection
OUT2
OUT2
OUT1
OUT1
IN_SET
RSET
Current
adjust
Basic LED Driver
470kW*
IN_SET
Status
ST
GND
RSET
Current
adjust
Basic LED Driver
CST=100pF**
Status
ST
GND
RSET
CST=100pF**
GND
* In case PWM via VS or EN is performed.
** For EMI improvement, if required.
2015-02-09
Copyright © Infineon Technologies AG 2015. All rights reserved.
Page 8
Infineon® Basic LED Driver Family
High temperature current reduction
 If junction temperature becomes to high, device protects itself and LEDs by
reducing the output current
 Slight reduction of LED brightness, but no flickering of LEDs
IOUT
Tj(CRT)
Tj
typ. 140°C
2015-02-09
Copyright © Infineon Technologies AG 2015. All rights reserved.
Page 9
Maximum Design Flexibility
by Cross-Device Feature & Pin-Out Compatibility
Pin Compatibility
VS
1
Identical Feature Set
14
NC
TLD1120
VS
2
13
NC
EN
3
12
OUT
NC
4
11
NC
NC
EP
PG-SSOP14EP
 Family members with / without
PWMI functionality can use the
same PCB design
GNDS
5
10
IN_SET
6
9
GND
NC
7
8
NC
 Same IN_SET behavior / pinout for all devices in the family
VS
1
14
NC
VS
2
13
OUT3
 Family members with / without
N-1 or OL functionality can use
the same PCB design
EN
3
12
OUT2
NC
4
11
OUT1
FB
TLD1326
EP
2015-02-09
 All members of the family
provide the same features on
the Supply / EN pin (+
identical pin-out)
PWMI
5
10
IN_SET
6
9
GND
N-1
7
8
NC
 1 channel / 3 channel devices
can use the same PCB design
(using 0Ohm resistor)
 If you know 1 device,
you know the whole family!
Copyright © Infineon Technologies AG 2015. All rights reserved.
Page 10
Reliable Control of low to medium Power LEDs
by IFXs new Basic LED Driver Family
Driving low to medium Power LEDs
Infineon® Basic LED Driver
 If you know 1 device,
you know the whole family!
Discrete
Integration
SSOP14
 resistors
 OP amps
 zener diodes
 Basic LED Driver
Customer Benefits
Product USPs

Stable and reliable LED brightness by precise current
control

Footprint compatibility of whole family ranging
from 1 to 3ch and 60 to 180mA

Improved system reliability by significant component
reduction (from discrete to integrated) on board level


Diagnostics optimized for automotive LED
requirements
Improved system protection (e.g. against ISO pulses)

Enabling energy optimized system solution (DCDC
control)

PWM via external PWM signal and optional via
integrated PWM engine

Design flexibility

Feedback pin for optimized DCDC control
2015-02-09
Copyright © Infineon Technologies AG 2015. All rights reserved.
Page 11
LITIX™ Basic
Demoboards
 LITIX™ Basic – Family Product Overview
 LITIX™ Basic – Family Demoboards
2015-02-09
Copyright © Infineon Technologies AG 2015. All rights reserved.
Page 12
LITIX™ Basic
Demoboards
Available Demoboards





TLD1121EL
TLD1124EL
TLD1125EL
TLD1311EL
TLD1313EL





TLD1314EL
TLD1315EL
TLD1326EL
TLD2311EL
TLD2314EL
www.infineon.com/LITIX-Basic-demoboards
Demoboards can be used for all other products of the Basic LED
Driver Family as well!
2015-02-09
Copyright © Infineon Technologies AG 2015. All rights reserved.
Page 13
Demo Boards Connectors
 All required device pins can be connected via test sockets
 One PCB can be used for all device types. Therefore, test sockets
have multiple names

E.g. device pin 6 is used as IN_SET-pin for the TLD1311EL
and as IN_SET2-pin for TLD2311EL
2015-02-09
Vs
Device pin 13
Device pin 3
Device pin 12
Device pin 5
Device pin 11
Device pin 6
Device pin 10
Device pin 7
GND
Copyright © Infineon Technologies AG 2015. All rights reserved.
Page 14
Demo Boards Jumpers
 JP_EN: Connects the device’s enable or DEN-pin to VS (position
2-3) or to EN-test socket (position 1-2)
 JP_OUTx: Connects the device’s OUT-pins to on board LEDs
(position 1-2) or OUTx-test sockets (position 2-3)
JP_OUTx
JP_EN
2015-02-09
Copyright © Infineon Technologies AG 2015. All rights reserved.
Page 15
Demo Boards Jumpers cont’d
 JP_SET1: Connects the device’s pin 7 to

1: CN-1/D capacitor

2: RSET1 resistor 47kΩ

3: test socket
JP_SET1
JP_SET/SET2
JP_SET3
 JP_SET/SET2: Connects the device’s pin 6 to

1: RSET potentiometer 15k…200kΩ

2: RSET2 resistor 47kΩ

3: test socket
 JP_SET3: Connects the device’s pin 5 to

1: RPWMI pull down resistor and connection to IN_SET for N-1 configuration

2: RSET3 resistor 47kΩ

3: PWMI circuit (RPWMI and CPWMI), deactivation of PWMI via switch SPWMI

4: test socket
SPWMI
 Switch SPWMI: Activates or deactivates internal PWM generation (only for devices
with PWMI-feature and jumper JP_SET3 in position 3)
2015-02-09
Copyright © Infineon Technologies AG 2015. All rights reserved.
Page 16
Jumper Settings using onboard Components
Device
Jumper JP_EN
Jumper
JP_SET1
Jumper
JP_SET/SET2
Jumper
JP_SET3
TLD1124EL
1-2
Not required
1 or 2
Not required
TLD1125EL
1-2 or 2-3*
1
1 or 2
3
TLD1311EL
1-2 or 2-3*
1
1 or 2
1
TLD1314EL
1-2
Not required
1 or 2
Not required
TLD1315EL
1-2 or 2-3*
1
1 or 2
3**
TLD1326EL
1-2 or 2-3*
1
1 or 2
3**
TLD2311EL
1-2 or 2-3*
2
1 or 2
2
TLD2314EL
1-2
2
1 or 2
2
* EN connected to onboard VS in position 2-3
** For PWMI feature use jumper position 3, for N-1 feature
use position 1
Jumper position
The numbers in the table above indicate the jumper
position as written on the demo board. The picture shows
jumper position 1:
2015-02-09
Copyright © Infineon Technologies AG 2015. All rights reserved.
Page 17
Demo Board Schematic
* SJ1 closed for
TLD1124EL,
TLD1314EL and
TLD2314EL
*
Jumper pos.
4
3
2
1
Jumper position
3
2
1
Jumper position
3
2
1
2015-02-09
Copyright © Infineon Technologies AG 2015. All rights reserved.
Page 18
LITIX™ Basic
Design In Support Material
Available Demoboards
 TLD1121EL
 TLD1314EL
 TLD1124EL
 TLD1315EL
 TLD1125EL
 TLD1326EL
 TLD1311EL
 TLD2311EL
 TLD1313EL
 TLD2314EL
www.infineon.com/litix-basic-demoboards
Other design in support material
 Data Sheets
 Application Note incl. Design
Recommendations
 Simulation Models
 EMC Test Reports
2015-02-09
Copyright © Infineon Technologies AG 2015. All rights reserved.
Page 19
Thank you very much
for your attention
For more information, please visit:
http://www.infineon.com/LITIX
Confidential – Do not forward this presentation or its content to any 3rd party
Published by Infineon Technologies AG, Am Campeon 1-12, 85579 Neubiberg, Germany
© Infineon Technologies AG 2015. All Rights Reserved.
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