ADI LTC4231IUD-1#PBF

热插拔控制器1闭锁故障

Overview

The LTC®4231 is a micropower Hot Swap™ controller that allows safe circuit board insertion and removal from a live power supply. An internal high-side switch driver controls the gate of an external N-channel MOSFET. Back-to-back MOSFETs can be used for reverse supply protection down to –40 V. The LTC4231CMS-1PBF provides a debounce delay and allows the GATE to be ramped up at an adjustable rate. After startup, the LTC4231's quiescent current drops to 4 μA during normal operation with output active. UVL, UVH, OV and GNDSW monitor overvoltage and undervoltage periodically, keeping total quiescent current low. Pulling SHDN low shuts down the LTC4231CMS-1PBF and quiescent current drops to 0.3 μA. During an overcurrent fault, the LTC4231CMS-1PBF actively limits current while running an adjustable timer. The LTC4231-1 remains off after a current fault while the LTC4231-2 automatically reapplies power after a cool-down period. View Full-Size Diagram

Features

Tube Package
The terminal position of 12
Features of Latched Fault
Programmable features of Circuit Breaker, Current Limit, Fault Timeout, OVP, Slew Rate, UVLO

Surface Mount Mounting Type

Applications

There are a lot of Linear Technology/Analog Devices
LTC4231IUD-1#PBF hot swap controllers applications.

• Industrial computers and servers
• Redundant-array-of-independent-disk (RAID) storage
• Other forms of communications infrastructure
• Board or blade insertion into live backplanes
• Backplane
• Loads
• Distributed power systems
• Redundant negative voltage supplies
• Central office switching systems
• Power supply hotswap & inrush control