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MP5981

16V, 50A, 1.1mΩ R_DS(ON), Hot-Swap Intelli-Fuse Solution

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MP5981

MP5981

16V, 50A, 1.1mΩ R_DS(ON), Hot-Swap Intelli-Fuse Solution

Datasheet

Description

The MP5981 is an integrated monolithic controller and switch with a high-side power MOSFET (HS-FET) and other circuitry that allows it to operate alone or be controlled via a hot-swap controller. The device can achieve up to 50A of continuous output current (I_OUT) per device at room temperature, or up to 60A of continuous I_OUT with air flow.

The device limits the backplane voltage drop by limiting the inrush current to the load while a circuit card is inserted into a live backplane power source. It limits the internal MOSFET current by controlling the gate voltage via the current limit reference input and soft-start ramp.

The MP5981 provides many features to simplify system design, such as an integrated current mirror to monitor I_OUT and the die temperature. This eliminates the need for an external current-sense power resistor, power MOSFET, and thermal-sense device.

The IC detects the power MOSFET’s gate, source, and drain short conditions. It also provides feedback to the hot-swap controller via the fault reporting output (GOK). The MP5981 can operate in parallel for high-current applications. All devices in parallel actively share current during soft start.

The MP5981 is available in an LGA-32 (5mmx5mm) package.

Features & Benefits

4V to 16V Operating Input Voltage (V_IN) Range
Up to 50A Output Current (I_OUT)
Up to 60A of I_OUT with Air Flow
1mΩ R_DS(ON) Integrated Power MOSFET
Built-In MOSFET Driver
3V LDO Output
Integrated Current Sense with Sense Output
Separate Current-Sense Output to Configure the Over-Current (OC) Value
Built-In Insertion Delay
Adjustable Soft Start (SS)
Output Short-Circuit Protection (SCP)
Over-Temperature Protection (OTP)
Built-In Fuse Health Reporting
Fault Signal Output
Supports Parallel Operation for High-Current Applications
Integrated Intelli-Fuse Temperature Sense
Output Voltage (V_OUT) Shutdown Control
Available in an LGA-32 (5mmx5mm) Package

Active Part Numbers:

MP5981GLU-Z MP5981GLU-P

Meaning of P & Z

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MP5981GLU-Z MP5981GLU-P

Package: SOICW24-18L

5,000 per Reel

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$3.40
10

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In stock now: 100

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Lead Time For Additional Quantities

Additional quantities estimated to ship by 09 Nov, 2025

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