Linear LED Drivers | FAN5340

LED 驱动器，同步升压，带 PWM 调光接口

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FAN5340 是一款同步恒定电流 LED 驱动器，能够有效为最多四个串联的 LED 提供最多 500mW。1.2MHz 的固定开关频率针对小尺寸应用进行了优化，允许使用芯片电感器和电容器。为了实现安全性，该器件具有集成的短路检测及过电压和高温关断保护。另外，如果电池电压低，则触发输入欠压锁定保护。亮度（调光）是通过将 300Hz 到 1kHz 的 PWM 信号应用到 EN 引脚上进行控制的。关断期间，FAN5340 将 LED 二极管与升压稳压器的输出断开，将升压稳压器的电压保持在 COUT 上，从而降低 PWM 调光的噪音，同时也断开 LED 串的电源。

  • TBA
  • 同步电流模式升压转换器
  • 高达 500 mW 输出功率
  • 支持 2、3 或 4 个串联 LED
  • 2.7 V 至 4.8 V 输入电压范围
  • 1.2 MHz 固定开关频率
  • 1 mA 最大静态电流
  • 软启动功能
  • 输入欠压锁定 (UVLO)
  • 输出过压保护 (OVP)
  • 短路检测
  • 热关断 (TSD) 保护

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FAN5340UCX

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CAD Model

Pb

A

H

P

WLCSP-8

567PZ

1

260

REEL

3000

N

4.8

40

4

1

Price N/A

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