A8431EEHTR-T 恒流LED驱动电源IC PWM，升压 背光 1.2MHz 2.5V ~ 10V 32V DFN6 52038831T 高输出电压
| 恒流Constant Current | 是 YES |
| 恒压Constant Voltage | |
| 拓扑Topology | PWM，升压（升压） PWM, Step-Up (Boost) |
| 输出数Number of Outputs | 1 |
| 内部驱动器Internal Driver | 是 YES |
| 初级类型Type - Primary | 背光 Backlight |
| 次级类型Type - Secondary | 白色 LED White LED |
| 频率Frequency | 1.2MHz |
| 电源电压Voltage - Supply | 2.5V ~ 10V |
| 输出电压Voltage - Output | 32V |
| Description & Applications | FEATURES • White LED Driver Constant Current Step-up Converter ▪ Output voltage up to 32 V (OVP level) ▪ 2.5 to 10 V input ▪ Drives up to 4 LEDs at 20 mA from a 2.5 V supply ▪ Drives up to 5 LEDs at 20 mA from a 3 V supply ▪ 1.2 MHz switching frequency ▪ 300 mA switch current limit ▪ 1 μA shutdown current ▪ OVP pin eliminates the need for an external Zener diode on the output |
| 描述与应用 | 特点 •白光LED驱动恒流升压转换器 ▪输出电压高达32 V（OVP电平） ▪2.5至10 V输入 ▪从2.5 V电源驱动多达4个LED，在20毫安 ▪从3 V电源驱动多达5个LED，在20毫安 ▪1.2 MHz的开关频率 ▪300毫安开关电流限制 ▪1μA关机电流 ▪OVP引脚不再需要外部齐纳二极管对输出 |
| 规格书PDF |
