The TIDA-00677 TI design is showcasing a solution for an automotive LED tail light application (Tail/Stop, Turn, Reverse) by using the TPS92630-Q1 linear LED driver supplied by an upstream buck converter (TPS65321-Q1) which is directly supplied through a smart reverse battery diode off the automotive battery voltage. The design has also been subjected to EMI/EMC radiation and pulse tests according to CISPR25 and ISO 7637-2. More information regarding potential cost savings and efficiency (power dissipation, system thermals) can be found in the user guide. For a similar design driven by Boost Converter, please see the TIDA-00678. For a similar design driven directly from car battery, please see the TIDA-00679.directly supplied through a smart reverse battery diode off the automotive battery voltage. The design has also been subjected to EMI/EMC radiation and pulse tests according to CISPR25 and ISO 7637-2. More information regarding potential cost savings and efficiency (power dissipation, system thermals) can be found in the user guide. For a similar design driven by Boost Converter, please see the TIDA-00678. For a similar design driven directly from car battery, please see the TIDA-00679.
Features
- Efficiency-optimized design
- CISPR-25 tested EMI/EMC
- Stays out of AM band
- Load dump tolerant
- Smart reverse battery protection
Parts Include:
LM74610-Q1 Zero Iq Reverse Polarity Protection Smart Diode Controller
TLC555-Q1 Automotive LinCMOS TIMER
TPS65321-Q1 Automotive 36-V Step-Down Converter With Eco-mode™ and Wide Vin LDO Regulator
TPS92630-Q1 Automotive Three-Channel Linear LED Driver with Analog and PWM Dimming
Learn more by downloading the reference design below
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