Matrix LED Headlight

This reference design provides design guide, data and other contents of LED Matrix Headlight. It controls the lighting of multiple LEDs independently according to the situation.

Simple block diagram of matrix LED headlight.
Simple Block Diagram


Input voltage DC 12 V
Number of LEDs 42 (6 LEDs x 7 blocks, 6 blocks of white and 1 block of amber color)
Power output for LEDs Constant current 500 mA x 7 blocks, dimming control is possible for each block
Power output for MCU DC 5 V (1 A Max) 


Photo of Matrix LED Headlight
  • Matrix LED Headlight with independent light control
  • Small Implementation Area
  • Total solution using MOSFETs, Gate drivers, Rectifer diodes and Zener diodes

Reference design files

Design, Document

“Design・Document” contains the documents listed below.

Design, File

“Design・File” contains the contents listed below.


*1:Actual PCB was designed on CR5000BD. The other files were made from CR5000BD file.
*2:The data was generated on CR5000BD.

Toshiba items

Part Number Device Category Portion Usage Description
XPN3R804NC MOSFET Load switch circuit, Reverse connection protection circuit・2 40 V/3.8 mΩ (typ.) @VGS = 10 V/TSON Advance(WF)
TPD7104AF Intelligent power IC High-side power MOSFET driver・1 VDD = 24V(Max)/PS-8
XPN2400ANC MOSFET Boost power supply circuit・7 100 V/19.7 mΩ (typ.) @VGS = 10 V/TSON Advance(WF)
CMF02A Rectifier diode Boost power supply circuit・7 600 V/1 A/trr = 100ns/M-FLAT
CUZ6V8 Zener diode Boost power supply circuit・7 VZ = 6.8 V /0.2 W/USC
SSM6K809R MOSFET LED dimming control circuit・7 60 V/36 mΩ (typ.) @VGS = 10 V/TSOP6F
TB9005FNG Automotive CPU regulator CPU power supply circuit・1 5 V VOUT/0.6 W/SSOP20
TTA005 Bipolar transistor CPU power supply circuit・1 PNP/-50V/New PW-Mold
SSM6J808R MOSFET LED lighting control circuit・42 -40 V/35 mΩ (typ.) @VGS = -10 V/TSOP6F
RN1907FE Bias resistor built-in transistor LED lighting control circuit・21 NPN×2/50V/SOT-563 (ES6)
XCUZ16V Zener diode LED lighting control circuit・42 VZ = 16 V/0.2 W/USC



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