4-Channel LED Driver with Phase Shift Control and 10-Bit Dimming Resolution

The ISL97687 is a PWM controlled LED driver that supports 4 channels of LED current, for Monitor and TV LCD backlight applications. It is capable of driving 160mA per channel from a 9V to 32V input supply, with current sources rated up to 75V absolute maximum.

Features
• 4x160mA, 75V rated channels with integrated channel regulation FETs
• Channels can be ganged for high current
    - 2x350mA
    - 1x700mA
• 9V~32V input voltage
• Dimming modes:
    - Direct PWM dimming from 100Hz~30kHz
    - PWM dimming with adjustable output frequency
    - 10-bit dimming resolution
    - VSYNC function to synchronize PWM signal to frame rate
    - Phase shift
    - Analog to PWM dimming with 8-bit resolution
• 2 selectable current levels for 3D applications
• Current matching of ±1%
• Integrated fault protection features such as string open circuit protection, string short circuit protection, overvoltage protection, and over-temperature protection
• 28 Ld 5mmx5mm TQFN and 28 Ld 300mil SOIC Packages Available

Applications
• Monitor/TV LED Backlighting
• General/Industrial/Automotive Lighting