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MAX5973 - Phase Redundancy Power Supervisor

Datasheet Summary

Description

The MAX5973 protects individual slave phases of a phase redundant DC-DC converter.

The power protection functions comprise an electronic circuit-breaker controller driving an external n-channel MOSFET at the step-down power input, and an internal 3.3V switch for the slave phase-controller power.

Features

  • S 9V to 14V Operating Range S Electronic Circuit-Breaker Controller Drives External n-Channel MOSFET S Internal, 350mA MOSFET for 3.3V Power S Open-Drain Ideal Diode Controller Drives External n-Channel MOSFET S Serial Data Bus Loop/Bypass Function S Serial Data Clock Buffer S Dual Analog Error-Signal Buffer Amplifiers S Active-Low.

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Datasheet preview – MAX5973

Datasheet Details

Part number MAX5973
Manufacturer Maxim Integrated Products
File Size 1.68 MB
Description Phase Redundancy Power Supervisor
Datasheet download datasheet MAX5973 Datasheet
Additional preview pages of the MAX5973 datasheet.

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Full PDF Text Transcription

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www.DataSheet4U.com 19-5243; Rev 0; 4/10 Phase Redundancy Power Supervisor MAX5973 General Description The MAX5973 protects individual slave phases of a phase redundant DC-DC converter. The power protection functions comprise an electronic circuit-breaker controller driving an external n-channel MOSFET at the step-down power input, and an internal 3.3V switch for the slave phase-controller power. To protect the output bus, an “ideal diode” controller drives an external n-channel MOSFET at the slave phase output. Serial data to and from the slave phase is buffered by the MAX5973 to prevent a failure of one phase from interrupting communication to the remaining phases. Similarly, the differential analog error signals for the phase controller are also buffered.
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