Description

The A8513 is a single-output white LED (WLED) driver for LCD backlighting. It integrates a current-mode boost converter with an internal power switch and one current sink. The A8513 can operate from a single power supply from 4.5 to 40 V, to accommodate start/stop, cold crank, and load dump requirements. A 2 MHz boost converter switching frequency allows the A8513 to operate above the AM radio band.

Features and Benefits

• AEC-Q100 Qualified

• Wide input voltage range of 4.5 to 40 V for start/stop, cold crank and load dump requirements

• Boost converter switching frequency up to 2 MHz, allowing operation above the AM band

• Excellent input voltage transient response

• Internal secondary OVP for redundant protection

• Fully integrated LED current sink and boost converter with 60 V DMOS FET

• Maximum LED current of 150 mA

• Drives up to 14 series LEDs

• Single EN/PWM pin interface for PWM Dimming and Enable function

• 5000:1 PWM dimming at 200 Hz

• Fault flag pin to alert the controller to a myriad of possible fault conditions

• Protection Features:

▫ Shorted output

▫ Open or shorted LED pin

▫ Output undervoltage and overvoltage

▫ Input undervoltage

▫ Shorted boost switch or inductor

▫ Shorted ISET resistor

▫ Open boost Schottky

▫ Overtemperature

Applications:

• LCD backlighting for:

▫ Automotive infotainment

▫ Automotive cluster

▫ Automotive center stack

▫ Industrial LCD displays

▫ Portable DVD players

▫ Flatbed Scanners

▫ LED Lighting