CAT3612: LED Driver, Charge Pump, 2-Channel
The CAT3612 is a high efficiency Quad-Mode® fractional charge pump that can drive up to four LEDs with input supply voltages as low as 2.5V. An external RSET resistor is used to control the LED channel brightness while channel diagnostics include automatic detection for both short and open LED channel conditions, ensuring the CAT3612 maintains the highest efficiency level in all operating modes. Each operating mode uses a constant high frequency switching scheme which allows the use of small form factor external ceramic capacitors while delivering excellent low noise input supply ripple up to 5.5 volts. The EN input control supports direct PWM dimming and can accommodate dimming frequencies in excess of 10kHz thereby providing extremely high resolution brightness levels. The device is available in the 16-pad low profile 0.8mm thin QFN (4mm x 4mm).
技术特性
- Quad-mode charge pump: 1x, 1.33x, 1.5x, 2x
- Drives up to 4 LEDs at 30mA each
- Pin compatible with industry standard ‘604
- Open/short LED automatic detection
- Power efficiency up to 92%
- High resolution PWM dimming
- Low noise supply ripple in all modes
- Soft start and current limiting
- Short circuit and thermal overload protection
应用
- Color LCD and keypad Backlighting
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终端产品
- Portable MP3 Players
- Digital Cameras
- Mobile Phones
封装图 PACKAGE DIMENSIONS
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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 |
| CAT3612HV2-GT2 |
Active |
| AEC Qualified |
| PPAP Capable |
| Pb-free |
| Halide free |
|
LED Driver, Charge Pump, 2-Channel |
WDFN-6 |
511BR |
1 |
Tape and Reel |
2000 |
0.8 |
数据资料DataSheet下载
