MP5022C 4.5-16V, 15A Hot-Swap Protection Device QFN-22

MP5022C 4.5-16V, 15A Hot-Swap Protection Device QFN-22

The MP5022C is a hot-swap protection device designed to protect circuitry on its output from transients on its input.

Key Specifications

Features

• 4.5V to 16V Operating Input Range
• Integrated 3mΩ Power FET
• Adjustable Current Limit
• Output Current Measurement
• ±3% Current Monitor Accuracy (6A < Io < 15A)
• Fast Response (<200ns) for Short Protection
• PG Detector and FLTB Indication
• PG Assert Low at VIN = 0
• Input-to-Output Short-Circuit Detection
• External Soft Start

Typical Application Circuit

Applications

• Hot Swap
• PC Cards
• Disk Drives
• Networking

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