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Automotive LED high side dimming rear light reference design

TI - RDD - tida-00846

The TI design is for automotive high side dimming rear light, which uses BCM to supply the rear light. In the TI design the high side driver TPS1H100-Q1 is used to output PWM supply with different duty cycle. Linear LED drivers TPS92630-Q1 and TPS92638-Q1 are used to drive the LEDs in constant current.

Features  
• High side dimming
• Wide input voltage range: 12V Typical, 9-16V Continuous
• Programable current limit high side driver
• LED Open circuit,  LED short circuit, LED driver output short to battery, device thermal shut down protection
• Thermal Foldback function for LED driver
• One fail all fail function

Parts Include:
TLC555-Q1      Automotive LinCMOS TIMER 
TPS1H100-Q1  40V/100mOhm Single Channel Smart High Side Switch 
TPS7B6950-Q1  Automotive High-Voltage Ultra-Low IQ Low-Dropout Regulator/Fixed 5-V Output Voltage 
TPS92630-Q1   Automotive Three-Channel Linear LED Driver with Analog and PWM Dimming 
TPS92638-Q1   Automotive 8-Channel Linear LED Driver With PWM Dimming 

Learn more by downloading the reference design below

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