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LTC4421 - High Power Prioritized PowerPath Controller

General Description

The LTC®4421 connects one of two input supplies to a common output based on user-defined priority and validity.

By definition, the supply connected to V1 is the higher priority supply, although this can be changed dynamically.

Key Features

  • n 0V to 36V Wide Operating Range (60V Tolerant) n Drives Large External N-Channel MOSFETs for High Output Current.

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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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LTC4421 High Power Prioritized PowerPath Controller FEATURES n 0V to 36V Wide Operating Range (60V Tolerant) n Drives Large External N-Channel MOSFETs for High Output Current Applications n Accurately Limits Inrush Current n Connects Highest Priority Valid Supply to Output Load n Changes Channel Priority in Real Time n ±2% OV, UV Input Comparators n Individually Adjustable Current Limit Time-Out for Each Channel n Adjustable Input Validation Time n Fast Switchover Minimizes VOUT Droop n 36-Lead 5mm × 6mm QFN and SSOP Packages APPLICATIONS n High Reliability Systems n Server Based Back-Up Systems n Industrial Handheld Instruments n Battery Back-Up Systems DESCRIPTION The LTC®4421 connects one of two input supplies to a common output based on user-defined priority and validity.