Linear LED Drivers | CAT4101
LED 驱动器，1 A 恒定电流，带 PWM
Obsolete
概览
该 CAT4101 是一个恒定电流接收器，用于驱动最高 1 A 的串联的高亮度 LED，全负载时电压降极低，为 0.5 V。它无需电感器，运行噪声低，最大程度减少了部件数量。LED 电流通过联接 RSET 引脚的外部电阻器进行设置。该 LED 引脚可兼容最高 25 V 的高电压，可驱动串联的多个 LED。该器件可确保 LED 中准确和调节的电流，而无论电源和 LED 正向电压波动如何。PWM/EN 输入使用外部脉宽调制 (PWM) 信号来实现器件关机和 LED 亮度调节。该驱动器具有高温关闭保护功能，每当裸片温度超过 150C 时即激活。该器件使用大功率、5 引线 TO-263 封装，提供了卓越的散热特性。
- High Power LED up to 1A
- Architectural and General Lighting
- Automotive Lighting
- 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
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