6-Channel LED Driver with Phase Shift Control

The ISL97676 is an LED driver that drives 6 channels of LED current for TFT-Display. The ISL97676 drives 6 channels of LED to support 78 LEDs from 4.5V to 26V or 48 LEDs from a boost supply of 2.7V to 26V and a separate 5V bias supply on the ISL97676 Vin pin.

Features

• 6 Channels

• Channel Phase Shift PWM Dimming

• Direct PWM Dimming without Phase Shift

• 4.5V to 26V Input

• 45V Output Max

• Up to 30mA LED Current per Channel

• Drive up to 78 (3.2V/20mA each) LEDs

• Current Matching of ±1.5 from 1 ~ 100 Dimming

• Dynamic Headroom Control

• Protections

- String Open/Short Circuit, VOUT Short Circuit Overvoltage, and Over-temperature Protections

- Optional Master Fault Protection

• Selectable 600kHz or 1.2MHz Switching Frequency

• 20 Ld QFN 4mmx4mm Package

Applications

• Netbook Displays LED Backlighting

• Notebook Displays LED Backlighting