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LTC4228-1 - Dual Ideal Diode and Hot Swap Controller

General Description

The LTC®4228 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.

Key Features

  • n Power Path and Inrush Current Control for Redundant Supplies n Low Loss Replacement for Power Schottky Diodes n Protects Output Voltage from Input Brownouts n Allows Safe Hot Swapping from a Live Backplane n 2.9V to 18V Operating Range n Controls N-Channel MOSFETs n Limits Peak Fault Current in ≤1µs n Adjustable Current Limit with Circuit Breaker n Adjustable Current Limit Fault Delay n Smooth Switchover without Oscillation n 0.5µs Ideal Diode Turn-On and Turn-Off Time n Status, Fa.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Features n Power Path and Inrush Current Control for Redundant Supplies n Low Loss Replacement for Power Schottky Diodes n Protects Output Voltage from Input Brownouts n Allows Safe Hot Swapping from a Live Backplane n 2.9V to 18V Operating Range n Controls N-Channel MOSFETs n Limits Peak Fault Current in ≤1µs n Adjustable Current Limit with Circuit Breaker n Adjustable Current Limit Fault Delay n Smooth Switchover without Oscillation n 0.