A8521 Datasheet - Allegro

A8521 High Efficiency Fault Tolerant LED Driver

The A8521 is a multi-output white LED driver for small-size LCD backlighting. It integrates a current-mode boost converter with internal power switch and four current sinks. The boost converter can drive up to 48 LEDs, 12 LEDs per string, at 80 mA. The LED sinks can be paralleled together to achieve.

A8521 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,

A8521-Allegro.pdf