CAT3614 Overview
The CAT3614 is a high efficiency 1x/1.5x fractional charge pump with programmable dimming current in four 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 1 MHz which allows the use of small external ceramic capacitors.
CAT3614 Key Features
- Drives up to 4 LED Channels
- 1-wire EZDimt Programmable LED Current
- Accurate 1 mA Dimming Level
- Power Efficiency up to 91%
- Fractional Pump 1x/1.5x
- Low Noise Input Ripple
- Fixed High Frequency Operation 1 MHz
- Soft Start and Current Limiting
- Short Circuit Protection
CAT3614 Applications
- Drives up to 4 LED Channels
