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MAX5939 Datasheet -48V Hot-Swap Controllers

Manufacturer: Maxim Integrated (now Analog Devices)

Download the MAX5939 datasheet PDF. This datasheet also includes the MAX5921 variant, as both parts are published together in a single manufacturer document.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (MAX5921_MaximIntegratedProducts.pdf) that lists specifications for multiple related part numbers.

General Description

The MAX5921/MAX5939 hot-swap controllers allow a circuit card to be safely hot plugged into a live backplane.

The MAX5921/MAX5939 operate from -20V to -80V and are well suited for -48V power systems.

These devices are pin compatible with both the LT1640 and LT4250 and provide improved

Overview

19-2946; Rev 1; 2/06 MAX5921/MAX5939 -48V Hot-Swap Controllers with External RSENSE and High Gate Pulldown Current.

Key Features

  • over these devices. The MAX5921/MAX5939 provide a controlled turn-on to circuit cards preventing damage to board connectors, board components, and preventing glitches on the power-supply rail. The MAX5921/MAX5939 provide undervoltage, overvoltage, and overcurrent protection. These devices ensure that the input voltage is stable and within tolerance before applying power to the load. Both the MAX5921 and MAX5939 protect a system against overcurrent and short-circuit conditions by turning off the.

More Datasheets from Maxim Integrated (now Analog Devices)

Part Number Description
MAX5931 Hot-Swap Controllers/ Power Sequencers/Voltage Trackers
MAX5932 Hot-Swap Controller
MAX5901 -100V SOT23 Simple Swapper Hot-Swap Controllers
MAX5905 Low-Voltage / Dual Hot-Swap Controllers/Power Sequencers
MAX5906 Low-Voltage / Dual Hot-Swap Controllers/Power Sequencers
MAX5907 Low-Voltage / Dual Hot-Swap Controllers/Power Sequencers
MAX5908 Low-Voltage / Dual Hot-Swap Controllers/Power Sequencers
MAX5909 Low-Voltage / Dual Hot-Swap Controllers/Power Sequencers
MAX5912 -48V Simple Swapper Hot-Swap Switches
MAX5914 +48V Quad Hot-Swap Controllers