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MP5991 4-16V, 50A Hot-Swap Intelli-Fuse Solution LGA-32
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pMPS MP5991 — Hot-Swap Intelli-Fuse Solution, 4-16V input, 50 A output, LGA-32./p
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MP5991 4-16V, 50A Hot-Swap Intelli-Fuse Solution LGA-32
The MPS MP5991 is a Hot-Swap Intelli-Fuse Solution. It operates from a 4 V to 16 V input and is rated for 50 A. It is supplied in a LGA-32 package.
The MP5991 is an integrated, monolithic controller and switch with a power MOSFET and other circuitry that allows it to work in standalone operation or to be controlled via a hot-swap controller.
Key Specifications
| Part Number | MP5991 |
| Function | Hot-Swap Intelli-Fuse Solution |
| Input Voltage | 4 V to 16 V |
| Current Rating | 50 A |
| Package | LGA-32 |
| Ordering Codes | MP5991 |
Features
- 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 RDS(ON)
- IMON Reporting (±1% Accuracy)
- Built-In MOSFET Driver
- 3.3V LDO Output
- Integrated Current Sense with Sense Output
- Configurable Over-Current Limit
- Configurable Short-Circuit Current Limit
Typical Application Circuit
Applications
- Hot Swap
- PC Cards
- Disk Drives
Design Notes
- The current-limit threshold must stay inside the SOA of the pass device at the applied voltage, including startup inrush.
- Hot-swap inrush control is set by the slew rate on the gate or the dV/dt capacitor — too fast trips the upstream supply.
- Reverse-current blocking behaviour differs between ideal-diode and load-switch topologies; pick the one that matches the fault you are protecting against.
- Route the fault flag to a pin the firmware actually polls; a latch-off protection with no report looks like a dead board in the field.
Common Questions
What input voltage does the MP5991 support?
4 V to 16 V. The rated output is 50 A.
Which package and ordering codes apply to the MP5991?
LGA-32; order codes include MP5991.
What are the defining features of the MP5991?
4V to 16V Operating Input Voltage (VIN) Range Up to 50A Continuous Output Current (IOUT)
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