Quality Standards and Environmental Certifications
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4-Channel Automotive LED Controllers with Independent Dimming

A80804

Allegro-32-Pin-QFN-with-exposed-thermal-pads-ET-package

The A80804 provides flexible control of automotive LED lighting, with four independently dimmable channels, internal and external PWM options, and analog dimming for precise brightness control.

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Top Features

Packaging

  • Internal and external PWM dimming options
  • Two ADIM pins for LED binning, NTC feedback, or hybrid analog/PWM dimming
  • Adjustable integrated LED current derating for elevated VIN
  • Integrated LED current derating for elevated IC junction temperature
  • MINOUT signal for trimming pre-regulator to minimize power loss
  • Selectable LED current slew rate limit during PWM dimming
  • Extensive fault detection and protection
  • Current sense voltage options of 500mV (A80804) for better BCI immunity or 200mV (A80804-1) for lower power dissipation in the sense resistors

Typical Applications

  • Automotive Medium-Power LED Lighting Systems
  • Fog Lights, Backup Lights, Daytime Running Lights, Position Lights, Sequential Lights

32-pin QFN Wettable Flank (Suffix ET)

ET Packaging Documentation

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Part Number Specifications and Availability

Documentation and Resources

Documentation

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Documents Found: 32
Document Type Document Name
Application Note
An Efficient Voltage-Optimized LED Driver (A80804) with Buck-Boost Controller (A4450)
Application Note
An Efficient Voltage Optimized LED Driver (A80804) with Synchronous Buck Pre-Regulator Module (APM81911)