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LTC4229 - Ideal Diode and Hot Swap Controller

General Description

The LTC®4229 offers ideal diode and Hot Swap™ functions for a power rail by controlling two external N-channel MOSFETs.

The MOSFET acting as an ideal diode replaces a high power Schottky diode and the associated heat sink, saving power and board area.

Key Features

  • n Ideal Diode and Inrush Current Control for Redundant Supplies n Low Loss Replacement for Power Schottky Diode 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 Back-to-Back N-Channel MOSFETs n Limits Peak Fault Current in ≤1µs n Adjustable Current Limit with Foldback n Adjustable Start-Up and Current Limit Fault Delay n 0.5µs Ideal Diode Turn-On and Turn-Off Time n Undervoltage and Overvoltage Prote.

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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 Ideal Diode and Inrush Current Control for Redundant Supplies n Low Loss Replacement for Power Schottky Diode 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 Back-to-Back N-Channel MOSFETs n Limits Peak Fault Current in ≤1µs n Adjustable Current Limit with Foldback n Adjustable Start-Up and Current Limit Fault Delay n 0.