CAT4101: LED Driver, 1 A Constant Current with PWM
The CAT4101 is a constant-current sink driving a string of high-brightness LEDs up to 1 A with very low dropout of 0.5 V at full load. It requires no inductor, provides a low noise operation and minimizes the number of components. The LED current is set by an external resistor connected to the RSET pin. The LED pin is compatible with high voltage up to 25 V, allowing the driving of long strings of LEDs. The device ensures an accurate and regulated current in the LEDs independent of supply and LED forward voltage variation. The PWM/EN input allows the device shutdown and the LED brightness adjustment by using an external pulse width modulation (PWM) signal. The driver features a thermal shutdown protection that becomes active whenever the die temperature exceeds 150C. The device is available in a high-power, 5-lead TO-263 package offering excellent thermal dissipation characteristics.
特性- Accurate 1 A Current Sink
- Up to 25 V Operation on LED Pin
- Low Dropout 500 mV at 1 A
- LED Current Set by External Resistor
- High Resolution PWM Dimming via EN/PWM
- 'Zero' current Shutdown mode
- Thermal Shutdown Protection
- TO263 (D2PAK) 5-lead Package
- This Device is Pb-Free, Halogen Free/BFR Free and is RoHS Compliant
|
应用 | 终端产品- Architectural and General Lighting
- Automotive Lighting
|
设计和开发工具 (1)
封装图纸 (1)
| Document Title | Document ID/Size | Revision |
|---|
| TO-263, 5 Lead | 221AE (54.8kB) | revo |
应用注释 (1)
评估板文档 (5)
数据表 (1)
评估板与开发工具
| 产品 | 状况 | Compliance | 简短说明 |
|---|
| CAT4101AEVB | Active | | LDO Current Sink Evaluation Board |
产品订购型号
| 产品 | 状况 | Compliance | 封装 | MSL* | 容器 | 预算价格 (1千个数量的单价） |
|---|
| CAT4101TV-T75 | Active | Pb-free
Halide free | TO-263-5 | 221AE | 3 | Tape and Reel | 750 | $1.28 |
订购产品技术参数
| Product | VI Max (V) | IO Max (mA) | LEDs in Series, Max # | LEDs in Parallel, Max # |
|---|
| CAT4101TV-T75 | 5.5 | 1000 | 8 | 1 |
