The TIDA-00678 TI design showcases a solution for an automotive LED tail light application (Tail/Stop, Turn, Reverse) by using the TPS92630-Q1 linear LED driver powered by an upstream boost converter (TPS40210-Q1) which is directly supplied through a smart reverse battery diode off the automotive battery voltage. The design guide includes EMI/EMC radiation and pulse tests conducted by CISPR25 and ISO 7637-2 and highlights potential cost savings and efficiency (power dissipation, system thermals). For a similar design with the TPS92630-Q1 driven by a Buck Converter please see TIDA-00677.
For a similar design with the TPS92630-Q1 driven directly from car battery, please see TIDA-00679.
Features
- Efficiency-optimized design
- Load dump tolerant
- Operation through cold crank
- Smart reverse battery protection
- CISPR-25 tested EMI/EMC
Parts Include:
CSD18531Q5A 60V N-Channel NexFET Power MOSFETs, CSD18531Q5A
CSD85301Q2 CSD85301Q2 Dual N-Channel NexFET™ Power MOSFET
LM74610-Q1 Zero Iq Reverse Polarity Protection Smart Diode Controller
LMV7239-Q1 75 nsec, Ultra Low Pwr, Low Voltage, Rail-to-Rail Input Comparator w/ Open-Drain/Push-Pull Output
SN74LVC1G07-Q1 Automotive Catalog Single Buffer/Driver With Open-Drain Output
TLC555-Q1 Automotive LinCMOS TIMER
TPS40210-Q1 Automotive Wide Input Range Current Mode Boost Controller
TPS7A1633-Q1 Automotive 60V, 5uA IQ Low-Dropout 100mA Linear Regulator with Enable and Power Good
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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