SDAA373 August   2026 LM51770

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Automotive LED Application Requirements and System Overview
    1. 2.1 Application Requirements
    2. 2.2 Typical Automotive Headlight System Overview
    3. 2.3 LED Load Configuration and Switching Architecture
  6. 3LM51770-Q1 Pin Configuration for ILIM Function
    1. 3.1 LM51770-Q1 Pin Description
    2. 3.2 Pin Configuration for ILIM Operation
  7. 4Automotive LED Lighting Design Application
    1. 4.1 Power Stage Design
    2. 4.2 Control Loop Architecture
  8. 5ILIM Loop Optimization and Measurement Results
    1. 5.1 Strong Voltage Loop Compensation
    2. 5.2 Weak Voltage Loop Compensation
    3. 5.3 LED Switching and Buck-Boost Region
  9. 6Detailed Results
    1. 6.1 LED Steady State Operation Results
    2. 6.2 LED Switching State Operation Results
  10. 7Summary
  11. 8References
Application Note

Average Current Limiter Operation of the LM51770-Q1 for Automotive LED Lighting Applications