Single or Multiple Cell Li-ion Battery Powered 4-Channel and 6-Channel LED Drivers

The ISL97692, ISL97693, ISL97694A are Intersil’s highly integrated 4- and 6-channel LED drivers for display backlighting . These parts maximize battery life by featuring only 1mA quiescent current, and by operating down to 2.4V input voltage, with no need for higher voltage supplies.

Features
• 2.4V Minimum Input Voltage, No Need for Higher Voltage Supplies
• 4 Channels, up to 40mA Each (ISL97692) or 6 Channels, up to 30mA Each (ISL97693/4A)
• 90% Efficient at 6P5S, 3.7V and 20mA (ISL97693/4A)
• Low 0.8mA Quiescent Current
• PWM Dimming Control with Internally Generated Clock
    - 8-bit Resolution with Adjustable Dimming Frequency up to 30kHz (ISL97692/4A)
    - 12-bit Resolution with Adjustable Dimming Frequency up to 1.875kHz (ISL97694A)
    - Optional Automatic Channel Phase Shift (ISL97692/4A)
    - Linear Dimming from 0.025%~100% up to 5kHz or 0.4%~100% up to 30kHz (ISL97692/4A)
• Direct PWM Dimming with 0.005% Minimum Duty Cycle at 100Hz
• ±2.5% Output Current Matching
• Adjustable Switching Frequency from 400kHz to 1.5MHz

Applications
• Tablet, Notebook PC and Smart Phone Displays LED Backlighting