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MAX5943 Datasheet FireWire Current Limiter and Low-Drop ORing Switch Controller

Manufacturer: Maxim Integrated (now Analog Devices)

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General Description

The MAX5943 is a fully integrated power-management IC for FireWire® applications.

This device controls two external power n-channel MOSFETs to regulate current from the input power supply to the load and performs low-voltage-drop, power-supply ORing.

The MAX5943 operates over a 7.5V to 37V input range and provides inrush and output current limit in addition to a diode ORing function suitable for FireWire applications.

Overview

19-3378; Rev 0; 8/04 www.DataSheet4U.com FireWire Current Limiter and Low-Drop ORing Switch.

Key Features

  • a current-limit function that actively limits the current drawn by the load with a programmable timeout. The MAX5943B.
  • MAX5943E do not actively limit the load current but provide a circuit-breaker function. See the Selector Guide for the default and programmable circuit-breaker timeouts. The MAX5943 operates over the -40°C to +85°C extended temperature range and is available in a 16-pin QSOP package. Features.
  • Provides Safe Hot Swap for 7.5V to 37V Power Supplies.
  • Low-D.

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