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Maxim产品 - MAX5903介绍

MAX5903 - +72V、SOT23/TDFN封装、Simple Swapper热插拔控制器

MAX5903是Maxim美信半导体公司的一款热插拔和电源开关产品，MAX5903是+72V、SOT23/TDFN封装、Simple Swapper热插拔控制器，本站介绍了MAX5903的封装应用图解、特点和优点、功能等，并给出了与MAX5903相关的Maxim元器件型号供参考。

MAX5903 - +72V、SOT23/TDFN封装、Simple Swapper热插拔控制器 - 热插拔和电源开关 - Maxim美信半导体高性能芯片品质 - 美信半导体

产品概述

The MAX5902/MAX5903 are hot-swap controllers thatallow a circuit card to be safely hot plugged into a livebackplane without causing a glitch on the power-supplyrail. These devices operate from +9V to +72V andprovide the simplest hot-swap solution by eliminating allexternal components except the external p-channelMOSFET.

The MAX5902/MAX5903 limit the inrush current to theload and provide a circuit-breaker function for overcurrentprotection. During startup the circuit-breaker function isdisabled and the MAX5902/MAX5903 limit the inrush currentby gradually turning on the external MOSFET. Oncethe external MOSFET is fully enhanced, the circuit-breakerfunction is enabled and the MAX5902/MAX5903 provideovercurrent protection by monitoring the voltagedrop across the external MOSFET's on-resistance.

The MAX5902/MAX5903 include an undervoltage lockout(UVLO) function, ON/active-low OFF control input, and apower-good status output, active-low PGOOD (MAX5902) orPGOOD (MAX5903). A built-in thermal shutdown featureis also included to protect the external MOSFET incase of overheating.

The MAX5902/MAX5903 offer latched or autoretry faultmanagement and are available with 300mV, 400mV or500mV circuit-breaker thresholds. Both the MAX5902 andMAX5903 are available in small SOT23 and TDFN packages,and are specified for the extended -40°C to +85°Ctemperature range. For specific ordering information, seethe Selector Guide at the end of the data sheet.

关键特性
  • 以下关键特性由Maxim美信半导体提供：
  • Wide +9V to +72V Operation
  • Requires No External Sense Resistor
  • Drives External p-Channel MOSFET
  • Limits Inrush Current
  • Circuit-Breaker Function
  • Less than 2mA Quiescent Current
  • ON/Active-Low OFF Input Permits Load Power-SupplyControl and Sequencing
  • Adjustable Undervoltage Lockout
  • Power-Good Output with +72V Rating
  • Latching or Automatic Retry Fault Management
  • Thermal Shutdown Helps Protect the ExternalMOSFET
  • Available in Two Small Packages
  • 6-Pin TDFN and SOT23
    • 热门应用
  • 基站线卡
  • 工业系统
  • 网络集线器、交换机和路由器
  • 网络集线器、交换机和路由器
  • RAID
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