描述 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