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