TPS2475x Reference Design Circuit | Electronic Fuse Circuit Protector Application Circuit

The TPS2475x provides highly integrated load protection for 2.5V to 18V applications. The device integrates a hot-swap controller and a power MOSFET in a small package for small form factor applications. This article mainly introduces the TPS2475x features, application range, reference design circuit and circuit analysis to help you shorten the design time.

TPS2475x features: 2.5V and 18V bus operation; up to 12A continuous current; programmable fault timer; analog load current monitor

Typical application range of TPS2475x: server; high current load switch; communication equipment; plug-in module; RAID system; base station;

TPS2475x reference design application circuit:

Figure 1 TPS2475x internal structure diagram

The devices integrate a high swap controller and a power MOSFET in a single package for small form factor applications.

Figure 2 TPS2475x reference design

The TPS24, TPS2413 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.

TPS2475x Chinese Data Sheet: Click to download

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