DESCRIPTION

The SP6687 is a compact, highly efficient and highly integrated 4 channel charge pump white LED driver. It can support from 1 to 4 White LEDs and is optimized for Li-Ion battery applications. Current matching allows all 4 LEDs to maintain consistent brightness. Users can control White LEDs by three programming bits. Each channel can support up to 30mA of current. This device is available in a 4mm x 4mm, 16 pin QFN package.

FEATURES

■ High Efficiency > 90

■ Support up to 4 White LEDs with current matching

■ Three Charge Pump Modes: X1, X1.5, X2

■ Soft Start Function

■ Short Circuit Protection

■ Output Overvoltage Protection

■ Thermal Shutdown

■ Programmable LED drive capability

■ PWM Dimming Control

■ 1MHz Fixed Frequency Oscillator

■ Low 1µA Shutdown Current

■ Pin Compatible with SC604

APPLICATIONS

■ Mobile phones

■ White LED Backlighting

■ Camera Flash LED lighting