MP5000A 5A Programmable Current Limit Switch QFN-10

MP5000A 5A Programmable Current Limit Switch QFN-10

The MP5000A is a protection device designed to protect circuitry on the output (source) from transients on input (VCC).

Key Specifications

Features

• Integrated 40mΩ Power FET
• Enable/Fault Pin
• Adjustable Slew Rate for Output Voltage
• Adjustable Current Limit: 1-5A
• Thermal Protection
• Over Voltage Limit
• Low Inrush Current

Typical Application Circuit

Applications

• Hot Swap
• PC Cards

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