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US3377 - POWER DISTRIBUTION SWITCH

This page provides the datasheet information for the US3377, a member of the US3177 POWER DISTRIBUTION SWITCH family.

Datasheet Summary

Description

The UTC US3X77 is a power distribution switch and particularly designed for self-powered and bus-powered Universal Serial Bus (USB) applications.

Features

  • 100mΩ High-Side MOSFET.
  • Supply Current: Switch on : 65μA(Typ) Switch off : 1μA (Max).
  • Accurate Current Limit with Foldback.
  • Deglitched Open-Drain Over-Current Flag Output (OC).
  • No Reverse Current when Power Off.
  • Under voltage Lockout.
  • Operating Range:2.7V ~ 5.5V.
  • Output Shutdown Pull-low Resistor.

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Datasheet preview – US3377

Datasheet Details

Part number US3377
Manufacturer Unisonic Technologies
File Size 636.94 KB
Description POWER DISTRIBUTION SWITCH
Datasheet download datasheet US3377 Datasheet
Additional preview pages of the US3377 datasheet.

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Full PDF Text Transcription

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UNISONIC TECHNOLOGIES CO., LTD US3X77 POWER DISTRIBUTION SWITCH  DESCRIPTION The UTC US3X77 is a power distribution switch and particularly designed for self-powered and bus-powered Universal Serial Bus (USB) applications. The UTC US3X77 incorporates protection circuits including current limiting circuit with foldback function, thermal shutdown circuit designed to prevent catastrophic switch failure due to increasing power dissipation when continuous heavy loads or short circuit occurs. Besides, a built-in charge pump is used to drive the N-channel MOSFET that is free of parasitic body diode to eliminate any reversed current flow across the switch when it is powered off. The RDS(ON) of the MOSFET switch is as low as 100mΩ.
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