- MP5991
MP5991
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Description
The MP5991 is an integrated, monolithic controller and switch with a power MOSFET and other circuitry that allows it to operate alone or to be controlled via a hot-swap controller. The device can drive up to 50A of continuous output current (IOUT) per device at room temperature, and up to 60A of continuous IOUT 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 (IFET) by controlling the gate voltage (VGATE) via the current limit (ILIMIT) reference input and soft-start (SS) ramp.
The MP5991 provides many features to simplify system design, such as an integrated current mirror to monitor IOUT and the integrated on-die temperature sense. This eliminates the need for an external current-sense power resistor, power MOSFET, and temperature-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 MP5991 can operate in parallel for high-current applications. During start-up, all of the devices in parallel actively share current.
The MP5991 is available in an LGA-32 (5mmx5mm) package.
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Features & Benefits
- 4V to 16V Operating Input Voltage (VIN) Range
- Up to 50A Continuous Output Current (IOUT)
- Up to 60A Continuous IOUT with Air Flow
- Integrated Power MOSFET with 1mΩ On Resistance (RDS(ON))
- IMON Reporting (±1% Accuracy)
- Built-In MOSFET Driver
- 3V Low-Dropout (LDO) Output
- Integrated Current Sense with Sense Output
- Configurable Over-Current (OC) Limit
- Configurable Short-Circuit Current Limit
- Built-In Insertion Delay
- Configurable Soft Start (SS)
- Output Short-Circuit Protection (SCP)
- Over-Temperature Protection (OTP)
- Built-In Fuse Health Reporting
- Fault Signal Output (GOK)
- Fault Type Indication (FLT_TYPE)
- Supports Parallel Operation for High-Current Applications
- Integrated Intelli-Fuse Temperature Sense
- Available in an LGA-32 (5mmx5mm) Package

Active Part Numbers:
MP5991GLU-Z MP5991GLU-P
Part numbers ending in P and Z are the same parts. P and Z only indicates reel size.
Meaning of P & Z
MP5991 Resources
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USE CASE
HOT-SWAP PROTECTION DEVICE USE CASE: SERVERS AND DATACENTERSUSE CASEThis use case considers the application of the MP5990 for servers and datacenters. The MP5990 is designed to work as a hot-swap protection device in conjunction with the multi-phase MP5991 for applications requiring above 50A of output current. As datacenters become more central for vehicle transportation and artificial intelligence, optimizing safety during maintenance – while allowing th...
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APPLICATION
POWER SOLUTION FOR SWITCHESAPPLICATION -
APPLICATION
SMALL CELL BASE STATIONSAPPLICATIONSmall cell base stations are more useful than ever with the ubiquity of smartphones, rising data usage, and the advent of 5G. However, small cell base station designs must meet these demands as well as weight and volume restrictions, without sacrificing performance or significantly increasing power consumption. Todays wireless market demands reliability and flexibility wherever possible, so new pr...
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PRODUCT CATEGORY
E-FUSE & HOT SWAPPRODUCT CATEGORY -
APPLICATION
SERVERS (CORE POWER) DATA CENTER SOLUTIONAPPLICATIONCloud computing, AI and machine learning, and other game-changing innovations are spreading across the technology industry and becoming ubiquitous in consumers everyday lives. However, supporting the increased processing and data needs of these technologies requires servers and data centers to be able to deliver at greater rates than ever before. High power density than ever has to fit into shrink...
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PRODUCT CATEGORY
E-FUSE & HOT SWAPPRODUCT CATEGORY -
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