CAT3616 - Catalyst Semiconductor

CAT3616 6-Channel Charge Pump LED Driver

The CAT3616 is a high efficiency 1x/1.5x fractional charge pump with programmable dimming current in six LED channels. To ensure uniform brightness in LCD backlight applications, each LED channel delivers an accurate regulated current. Low noise and input ripple is achieved by operating at a constant switching frequency of 1MHz which allows the use of small .

Features

„ „ „ „ „ „ „ „ „ „ „ „ „ 6 LED channels with tight matching Independent Main and Sub channels 1-wire EZDimTM Programmable LED Current Accurate 1mA Dimming Level Power efficiency up to 91% Fractional pump 1x/1.5x Low noise input ripple Fixed High Frequency Operation 1MHz “Zero” Current Shutdown Mode Soft start and current limiting Short circuit protection Thermal shutdown protection RoHS-compliant 16-lead Thin QFN 4mm x 4mm package DESCRIPTION The CAT3616 is a high efficiency 1x/1.5x fractional charge pump with programmable dimming current in six LED channels. To ensure uniform brightness in .