FAN5622 Overview
The FAN5622, FAN5624, and FAN5626 are two−, four−, and six−channel current−sink linear LED drivers used to backlight the main LCD displays or keypads in mobile electronics, such as cellular phone handsets. A very low dropout of 50 mV allows driving LEDs without any inductors or switch capacitors. The brightness levels of the LED outputs are programmed through single−wire digital control interface.
FAN5622 Key Features
- Family of Three Linear Current-Sink LED Drivers that Support 2, 4
- Current Sink Driver for Each LED Output
- 30 mA Maximum Output Current
- 50 mV Drop-out at 15 mA IOUT
- Better than 3% Matching between Channels
- External RSET
- Single-Wire Digital Control Interface for Easy Programming
- 32 Linear Steps of Dimming Control
- Less than 1 mA Shutdown Current
- Short-Circuit, Under-Voltage, and Thermal Protection
