TIDA-00677 Reference Design

Texas Instruments

CISPR25 Automotive Tail Light Reference Design for Step-Down + Linear LED Driver Based Systems

Description

TIDA-00677 showcases an automotive LED tail light application (tail/stop: turn and 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 and system thermals) can be found in the user guide. For a similar design driven by a boost converter: see TIDA-00678. For a similar design driven directly from a car battery: see TIDA-00679.

Features
  • Efficiency-optimized designCISPR-25 tested EMI/EMCStays out of AM bandLoad-dump tolerantSmart reverse battery protection
Applications
  • Process analytics
  • Headlight
  • Rear light
  • Small light
  • Sliding door module
Product Categories
  • Power management