A8518-1 Description
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.
A8518-1 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