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A8502 Datasheet High Efficiency Fault Tolerant LED Driver

Manufacturer: Allegro MicroSystems

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General Description

The A8502 is a multi-output white LED driver for small-size LCD backlighting.

It integrates a current-mode boost converter with internal power switch and two current sinks.

The boost converter can drive up to 24 LEDs, 12 LEDs per string, at 120 mA.

Overview

A8502 Wide Input Voltage Range, High Efficiency Fault Tolerant LED.

Key Features

  • AEC-Q100 qualified.
  • Wide input voltage range of 5 to 40 V for start/stop, cold crank and load dump requirements.
  • Fully integrated LED current sinks and boost converter with 60 V DMOS.
  • Sync function to synchronize boost converter switching frequency up to 2.3 MHz, allowing operation above the AM band.
  • Excellent input voltage transient response.
  • Single resistor primary OVP minimizes VOUT leakage.
  • Internal secondary OVP for redundant p.

More Datasheets from Allegro MicroSystems

Part Number Description
A8503 WLED/RGB Driver
A8504 WLED/RGB Backlight Driver
A8508 8-Channel Fault Tolerant LED Driver
A8509 High Efficiency 4-Channel Fault Tolerant LED Driver
A8510 High Efficiency Fault Tolerant LED Driver
A8511 4-Channel x 150 mA WLED/RGB Driver
A8514 High Efficiency Fault Tolerant LED Driver
A8515 Fault Tolerant LED Driver
A8517 Multi-Channel LED Driver
A8518 Fault-Tolerant LED Driver