LT LTC4228IGN-2#PBF

Контроллер горячей замены, контроллер OR2Автоматический повтор, UVLO

Overview

The LTC4228IUFD-2#PBF offers ideal diode and Hot Swap™ functions for two power rails by controlling two external N-channel MOSFETs in each rail. MOSFETs acting as ideal diodes replace two high power Schottky diodes and the associated heat sinks, saving power and board area. Hot Swap control MOSFETs allow boards to be safely inserted and removed from a live backplane by limiting inrush current. The supply output is also protected against short-circuit faults with a fast acting current limit and internal timed circuit breaker.

The LTC4228IUFD-2#PBF allows independent on/off control, and reports fault and power good status for the supply. The LTC4228IUFD-2#PBF improves on the LTC4225 by recovering more quickly from input brownouts to preserve the output voltage.

Features

Applications

• Safe board insertion and extraction
• 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