Description

The A8507 is a multi-output WLED/RGB driver for backlighting LCD monitors and televisions. The A8507 integrates a boost controller to drive external MOSFET and six internal current-sinks. The boost converter is constant frequency current mode converter.

Features and Benefits

▪Fixed frequency current mode control with integrated gate driver

▪Each individual current sink is capable of 80 mA

▪Adjustable overvoltage protection (OVP)

▪Active current sharing between LED strings for ±0.6% accuracy and matching

▪250 kHz to 1 MHz adjustable switching frequency

▪Open or shorted LED string protection

▪Overtemperature, cycle-by-cycle current limit, and undervoltage protection

▪No audible MLCC noise during PWM dimming

▪No pull-up resistors required for LED modules that use ESD capacitors

▪SOIC 24-pin package for easy single-side PCB manufacturing or TSSOP 24-pin package with exposed thermal pad for better thermal performance