DC-DC LED Drivers | FAN7340

LED 背光灯驱动升压开关

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概览

FAN7340 是一款单通道升压控制器，集成了 N 沟道功率 MOSFET，可实现 PWM 调光，采用安森美半导体的专属平面双扩散 MOS (DMOS) 工艺。该集成电路作为恒定电流电源运行，用于驱动高电流 LED。它使用电流模式控制和可编程斜率补偿来防止亚谐波振荡。该集成电路提供开路 LED 保护、过电压保护和直连短路保护，可实现系统高可靠性。如果发生异常 LED 串情况，该集成电路则生成带延迟的故障信号。PWM 调光和模拟调光功能可独立实施。内部软启动可防止涌入电流在启动时流入输出电容器。

  • LED 电视
  • 单通道升压LED开关
  • 用于PWM调光的内部功率MOSFET： RDS(on) = 3.4Ω(VGS=10V、BVDSS=400V)
  • 电流模式PWM控制
  • 内部可编程斜率补偿
  • 宽电源电压范围： 10V至35V
  • LED电流调节： ±1%
  • 可编程开关频率
  • 模拟和PWM调光
  • 宽调光比： 在时间=10µs时变为DC
  • 逐周期限流
  • 热关断： 150℃
  • 开路LED保护(OLP)
  • 过压保护(OVP)
  • 过流保护(OCP)
  • 内部软启动
  • 错误标志生成（对于外部负载开关）
  • 15引脚SOIC封装

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FAN7340MX

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CAD Model

Pb

A

H

P

SOIC-16

751BG

1

260

REEL

2500

N

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10

35

4

280

200

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