Part A8519
Description Fault-Tolerant LED Driver
Manufacturer Allegro MicroSystems
Size 2.20 MB
Allegro MicroSystems
A8519

Overview

The A8519 is a multi-output LED driver for small-size LCD backlighting. It integrates a current-mode boost converter with internal power switch and four current sinks.

  • Automotive AEC-Q100 qualified
  • Fully integrated 42 V MOSFET for boost converter
  • Fully integrated LED current sinks
  • Withstands surge input up to 40 VIN for load dump
  • Operates down to 3.9 VIN (max) for idle stop
  • Drives four strings of LEDs
  • Maximum output voltage 40 V
  • Up to 11 white LEDs in series
  • Drive current for each string is 100 mA
  • Programmable boost switching frequency (200 kHz to