TPS2475x参考设计电路|电子熔丝电路保护器应用电路
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TPS2475x为2.5V至18V应用提供高度集成的负载保护。此器件在一个针对小外形尺寸应用的小型封装内集成了一个热插拔控制器和一个功率MOSFET。此篇主要介绍了TPS2475x特性、应用范围、参考设计电路以及电路分析，帮助大家缩短设计时间。
TPS2475x特性：2.5V和18V总线工作；高达12A的连续电流；可编程故障计时器；模拟负载电流监控器
TPS2475x典型应用范围：服务器；高电流负载开关；通信设备；插件模块；RAID系统；基站；风扇控制
TPS2475x参考设计应用电路：
图1TPS2475x内部结构图
TheTPS2475x provide highly integrated load protection for 2.5 V to 18 V applications. The devices integrate a hot swap controller and a power MOSFET in a single package for small form factor applications.
图2TPS2475x参考设计图
TheTPS24750, TPS24752 operates in latch mode while the TPS24751, TPS27513 operates in retry mode. In latch mode, a fault timeout disables the internal MOSFET and holds FLTb low. The fault is reset when EN is pulled low or VCC falls under UVLO. In retry mode, a fault timeout first disables the internal MOSFET, next waits sixteen cycles of TIMER charging and discharging, and finally attempts a restart.
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