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User Manual 

2 of 14 

Rev.1.00  

 

 

2020-12-03

 

 

TLD2252-2EP rear combination lamp evaluation board 

User Manual 

TLD2252-2_RCL_EVAL description 

Related information 

Table 1

 

Supplementary links and document references 

Reference 

Description 

LITIX™ Basic+ TLD2252

-2EP 

product home page

 

Product website which 

contains reference information for the LITIX™ Basic+ 

TLD2252-2EP including datasheet, application notes, simulation models, 
boards and relevant training 

LITIX™ Basic+ family website

 

All 

information about LITIX™ Basic+ family products

 

LITIX™ Basic+ LED driver 

family: How to implement a 
rear combination lamp

 

Application note regarding the main operating principles of the pulse width 
modulation (PWM) engine integrated into 

the LITIX™ Basic+ TLD2252

-2EP, 

TLD2141-3EP and TLD2142-1EP, and how to build a rear combination lamp 
(RCL) using PWM 

LITIX™ Basic+ LED driver 

family: Diagnosis and fault 
management

 

Application note regarding the main operating principles of the diagnosis 

and fault management features integrated in the LITIX™ Basic+ family.

 

LITIX™ Basic+ Boards

 

Available evaluation 

boards for LITIX™ Basic+

 

LED rear lighting - application 
page

 

Application website for rear LED lighting 

 

 

Table of contents

 

About this document ......................................................................................................................... 1

 

Table of contents .............................................................................................................................. 2

 

1

 

TLD2252-2_RCL_EVAL description .............................................................................................. 3

 

1.1

 

Key features ............................................................................................................................................. 3

 

1.2

 

Connectors and jumpers ......................................................................................................................... 4

 

1.3

 

On-board load ......................................................................................................................................... 5

 

1.4

 

Test points ............................................................................................................................................... 6

 

2

 

Quick start ............................................................................................................................... 7

 

3

 

Schematics, layout and bill of material ...................................................................................... 8

 

3.1

 

Schematics .............................................................................................................................................. 8

 

3.2

 

Layout .................................................................................................................................................... 10

 

3.3

 

Bill of materials ...................................................................................................................................... 11

 

3.4

 

PCB design data .................................................................................................................................... 12

 

Revision history ...............................................................................................................................13

 

 

 

Summary of Contents for TLD2252-2EP

Page 1: ...board TLD2252 2_RCL_EVAL board is to help designers evaluate the features and the performance of the TLD2252 2EP a two channel linear current source LED driver for automotive LED lighting applications TLD2252 2EP provides a simple and compact solution for the implementation of a rear combination lamp RCL This user manual provides the usage instructions of the TLD2252 2 _RCL_ EVAL board schematic v...

Page 2: ...f the pulse width modulation PWM engine integrated into the LITIX Basic TLD2252 2EP TLD2141 3EP and TLD2142 1EP and how to build a rear combination lamp RCL using PWM LITIX Basic LED driver family Diagnosis and fault management Application note regarding the main operating principles of the diagnosis and fault management features integrated in the LITIX Basic family LITIX Basic Boards Available ev...

Page 3: ...L board can be used in combination with the BASICPLUS_DEMOBOARD for combined family evaluation Figure 2 Rear combination lamp implemented with LITIX Basic TLD2252 2EP 1 1 Key features The TLD2252 2_RCL_EVAL has the following features 1 Equipped with one LITIX Basic TLD2252 2EP 2 Typical supply voltage range 8 V to 16 V 3 Equipped with jumpers for evaluation of the features in different configurati...

Page 4: ... TLD2252 2_RCL_EVAL board jumpers Jumper Description and configuration JPN_SET1 Sets the output current of OUT1 RIN_SET1_1 36 5 kΩ sets the output current to 10 mA RIN_SET1_2 7 32 kΩ sets the output current to 50 mA JPPWMO PWM output enable IN_SET1 enables PWM at OUT1 IN_SET2 enables PWM at OUT2 JPN_SET2 Sets the output current of OUT2 RIN_SET2_1 14 7 kΩ sets the output current to 50 mA RIN_SET2_2...

Page 5: ... duty cycle 10 GND duty cycle is 100 The duty cycle is set by the RPWM_SET 4 53 kΩ and RPWM_RST 41 2 kΩ resistors JPOUT On board load connection OUT1 connects OUT1 to on board load Leave open to connect to external load OUT2 connects OUT2 to on board load Leave open to connect to external load 1 3 On board load The TLD2252 2_RCL_EVAL board is equipped with on board LED load on the bottom side for ...

Page 6: ...n lamp evaluation board User Manual TLD2252 2_RCL_EVAL description 1 4 Test points The TLD2252 2_RCL_EVAL board is equipped with several test points and two ground terminals for easy monitoring of significant voltages Figure 4 Figure 4 Test points and ground terminals ...

Page 7: ...1 and JPN_SET2 Configure the diagnosis management at JPD Select if PWM will be used by placing a jumper at JPPWMI only available when suppy at VS_TAIL Select the output channels that will driven by the PWM engine by placing a jumper at JPPWMO only available when suppy at VS_TAIL Enable output channel 2 by placing a jumper at JPEN DEN2 when suppy at VS_TAIL bypass EN1 DEN1 Select load by bypassing ...

Page 8: ...CL_EVAL board refer to the following documentation LITIX Basic TLD2252 2EP data sheet LITIX Basic LED driver family How to implement a rear combination lamp LITIX Basic LED driver family Diagnosis and fault management 3 1 Schematics In Figure 5 the top level schematic of the TLD2252 2_RCL_EVAL board is shown Figure 6 Figure 7 and Figure 8 show the schematic of the power supply circuit the TLD2252 ...

Page 9: ...2020 12 03 TLD2252 2EP rear combination lamp evaluation board User Manual Schematics layout and bill of material Figure 6 Schematic of TLD2252 2_RCL_EVAL board power supply Figure 7 Schematic of TLD2252 2_RCL_EVAL board TLD2252 2EP ...

Page 10: ...amp evaluation board User Manual Schematics layout and bill of material Figure 8 Schematic of TLD2252 2_RCL_EVAL board on board LED load 3 2 Layout Figure 9 and Figure 10 show the layout of the TLD2252 2_RCL_EVAL board Figure 9 Layout of TLD2252 2_RCL_EVAL board top layer ...

Page 11: ...a GRM31CR71H225KA88 CPWM1 120 nF Kemet C0603C124K4RACTU CPWM2 68nF Kemet C0603C683M4RACTU D1 D2 BAT165 Infineon Technologies AG BAT165 D3 5 60V Vishay BZX584C5V6 V G DPWMO BAS40 07W Infineon Technologies AG BAS40 07W ERRN IC_GND IN_SET1 IN_SET2 PWM_RST PWM_SET PWMI VS VS_STOP VS_TAIL 5002 Keystone Electronics Corp 5002 GND1 GND2 D3082 05 Harwin D3082 05 JPD JPEN2 DEN2 JPIN_SET1 JPIN_SET2 JPOUT JPP...

Page 12: ... RIN_SET1_2 RIN_SET2_2 RPWMO1 RPWMO2 7 32k Vishay CRCW06037K32FK RIN_SET2_1 14 7k Vishay CRCW060314K7FK RPWM_RST 41 2k Vishay CRCW060341K2FK RPWM_SET 4 53k Vishay CRCW06034K53FK SJEP SJGND SJVS1 SJVS2 Solder Jumper 2 Pins Infineon Technologies AG Solder Jumper 2 Pins TVS SMAJ30CA Littelfuse SMAJ30CA U1 TLD2252 2EP Infineon Technologies AG TLD2252 2EP X1 1935789 Phoenix Contact 1935789 X2 X3 691 10...

Page 13: ... of 14 Rev 1 00 2020 12 03 TLD2252 2EP rear combination lamp evaluation board User Manual Revision history Revision history Document version Date of release Description of changes Rev 1 00 2020 12 03 Initial release ...

Page 14: ...ectual property rights of any third party with respect to any and all information given in this application note The data contained in this document is exclusively intended for technically trained staff It is the responsibility of customer s technical departments to evaluate the suitability of the product for the intended application and the completeness of the product information given in this do...

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