Dual-Channel High-Current Automotive LED Controller with Fault Protection

A6270-1

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The A6270-1 offers robust and reliable control of two high-current LED strings, featuring independent current regulation, programmable high/low current levels, and fault protection for automotive applications.

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Top Features

Packaging

  • AEC-Q100 qualified
  • 5.3 to 40 V supply; operates down to 5.1 V, when enabled
  • LED current programmed independently with two external MOSFETs
  • Flexible LED dimming options
    • Integrated PWM dimming set by resistors
    • External PWM dimming set by microcontroller
    • Analog voltage control for PWM dimming
  • Current slew rate limit during PWM dimming
  • LED current derating for elevated VIN
  • LED current derating for elevated junction temperature
  • Low regulation voltage for low power dissipation
  • Extensive fault detection and protection
    • Drain short-to-ground detection
    • Drain short-to-VIN, open LED, VIN undervoltage, and thermal protection
  • Parallel IC operation for higher number of strings with good matching
16-pin TSSOP with exposed thermal pad (suffix LP)

Part Number Specifications and Availability