FAN5702

www.DataSheet4U.com FAN5702 — Configurable 180mA 6-LED Driver with I2C Control April 2010 FAN5702 Configurable 180mA 6-LED Driver with I2C Control Features ƒ ƒ ƒ ƒ ƒ ƒ ƒ Six (6) Parallel LEDs (up to 30mA Each) Total Package Load Current Capability: 180mA Group from 2 to 6 LEDs for Flexible Backlighting I C Interface for Easy Programming >600:1 Dimming Ratio for 100Hz PWM Frequency Logarithmically Controlled Dimming with 64 Steps Secondary Brightness Control Using PWM Dimming 2 up to 20kHz in Conjunction with I C Dimming − Dynamic Backlight Control (DBC) to Reduce Current Consumption 2 Description The FAN5702 is a highly integrated and configurable chargepump-based multi-LED driver. The device can drive up to six LEDs in parallel with a total output current of 180mA. Regulated internal current sinks deliver excellent current and brightness matching to all LEDs. The FAN5702 has an I C interface that allows the user to independently control the brightness with a default grouping of 2,1,1,1,1 for a maximum of five independent lighting channels. The LED driver can be programmed in a multitude of configurations to address broad lighting requirements for 2 different platforms. Each LED can be configured through I C as five independent channels (Group A has two LEDs by default) or any additional LEDs can join Group A to increase the backlighting needs as the display size increases. The device offers a second dimming control using the EN/PWM pin. Applying a PWM dimming signal to t...