CAT3612 - Catalyst Semiconductor

CAT3612 Programmable 300mA Camera Flash LED Driver

The CAT3612 is a high-efficiency 1x/1.5x fractional charge pump with programmable current in two LED channels. Each channel delivers accurate regulated current up to 150mA and make CAT3612 ideal for driving one or two flash LEDs. Low noise operation is achieved by operating at a constant switching frequency of 1MHz which allows the use of small external cera.

Features

„ „ „ „ „ „ „ „ „ „ „ „ „ Dual matched regulated LED channels 300mA output current (150mA per channel) 1-wire EZDimTM Programmable LED Current 32 accurate dimming levels Power efficiency up to 90% 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 12-lead TDFN 3mm x 3mm package PRODUCT DESCRIPTION The CAT3612 is a high-efficiency 1x/1.5x fractional charge pump with programmable current in two LED channels. Each channel delivers accurate regulated cu.