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Positive High-Voltage, Hot-Swap Controller

Product Details

Key Features

Simplified Block Diagram

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Key Features

  • Pin and Function Compatible with LT1641-1
  • Provides Safe Hot Swap for +9V to +80V Power Supplies
  • Safe Board Insertion and Removal from Live Backplanes
  • Active-High Power-Good Output (PWRGD)
  • Programmable Foldback-Current Limiting
  • High-Side Drive for an External n-Channel MOSFET
  • Undervoltage Lockout (UVLO)
  • Overvoltage Protection
  • Latched Fault Management
  • User-Programmable Supply Voltage Power-Up Rate

Applications/Uses

  • 24V/48V Industrial/Alarm Systems
  • Electronic Circuit Breakers
  • Hot Board Insertion
  • Industrial High-Side Switch/Circuit Breakers
  • Network Routers and Switches

Description

The MAX5932 is a fully integrated hot-swap controller for +9V to +80V positive supply rails. The MAX5932 allows for the safe insertion and removal of circuit cards into a live backplane without causing glitches on the backplane power-supply rail. This device is pin and function compatible to LT1641-1. The MAX5932 features a programmable foldback-current limit. If the device remains in current limit for more than a programmable time, the external n-channel MOSFET latches off. Other features include a programmable undervoltage lockout and a programmable output-voltage slew rate through an external n-channel MOSFET.

The MAX5932 provides a power-good output (PWRGD) to indicate the status of the output voltage. For a variety of PWRGD/PWRGD-bar, latch/autoretry-fault management, autoretry duty-cycle options, refer to the MAX5933 and MAX5934 data sheets.

The MAX5932 operates in the -40°C to +85°C extended temperature range. This device is available in an 8-pin SO package.

Simplified Block Diagram

MAX5932: Typical Application Circuit MAX5932: Typical Application Circuit Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .