Introducing RS31390: Stackable 60A eFuse with PMBus Digital Telemetry

The RS31390 is an active circuit protection device with integrated MOSFET used to limit current and voltage to safe levels during fault conditions.

The current limit level during startup and steady state can be set separately. Also, the device has integrated current sense to provide current monitor signal.

To limit the inrush current during device turn-on, the output soft start time can be set by a capacitor between DVDT and ground.

With PMBus interface, it allows user to configure and monitor the device.

In addition, the device provides fault indication to the system for monitoring and control.

RS31390 can work with RS31389 in parallel for higher current applications.

The device is available in QFN-26, 4.5×5 mm package.

Key Features

• Wide input voltage range: 2.97V to 16V
• Integrated 0.8mΩ Pass MOSFETSupport 50A DC current and 60A peak current
• Standalone mode or primary mode in parallel application
• PMBus interface for configuration and telemetry
• Accurate current monitor
• Adjustable output soft start time
• Adjustable current limit during soft start and steady state
• Adjustable short circuit current limit
• Fast trip short-circuit protection
• Fault and power good indication
• Programmable Latch-off mode or hiccup mode for input OV, over current, short circuit, overtemperature protections.
• Input to output short circuit detection
• RoHS compliant and Green

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