CAT3614:LED Driver, Charge Pump, 4-Channel
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 1MHz which allows the use of small external ceramic capacitors. The 1x/1.5x fractional charge pump supports a wide range of input voltages from 3 V to 5.5 V with efficiency up to 91%, and is ideal for Li-Ion battery powered devices. The EN/DIM logic input provides a 1-wire EZDim™ interface for dimming control of the LEDs. When enabled, a series of clock pulses reduces the LED brightness in 1mA steps on each negative going edge. Currents from 0 mA to 31 mA are supported.
技术特性
- Drives up to 4 LED channels
- 1-wire EZDim™ 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
|
应用
终端产品
- Mobile Phones
- Digital Still Cameras
封装图 PACKAGE DIMENSIONS
|
订购信息 Ordering Information
| 产品 |
状况 |
Compliance |
具体说明 |
封装 |
MSL* |
容器 |
预算价格 (1千个数量的单价） |
| 类型 |
外形 |
类型 |
数量 |
| CAT3614HV2-GT2 |
Active |
| AEC Qualified |
| PPAP Capable |
| Pb-free |
| Halide free |
|
LED Driver, Charge Pump, 4-Channel |
WDFN-6 |
511BR |
1 |
Tape and Reel |
2000 |
1.1033 |
数据资料DataSheet下载
