A8518 Overview
The A8518 is a multi-output 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 22 white LEDs, 11 LEDs per string, at 200 mA.
A8518 Key Features
- Automotive AEC-100 qualified
- Fully integrated 42 V MOSFET for boost converter
- Fully integrated LED current sinks
- Withstands surge input to 40 VIN for load dump
- Operates down to 3.9 VIN (max) for idle stop
- Drives two strings of LEDs
- Maximum output voltage 40 V
- Up to 11 white LEDs in series
- Drive current for each string is 200 mA
- Fixed 2.15 MHz boost switching frequency