MP5098A 12V Dual E-Fuse QFN-10

MP5098A 12V Dual E-Fuse QFN-10

The MP5098A is a dual 5V/12V e-fuse that protects circuitry on the output from transients on the input.

Key Specifications

Features

• Integrated 5V/12V Input Dual E-Fuse
• Up to 18V Absolute Maximum Input Voltage (VIN) for Both E-Fuses
• Reverse Current Blocking for the 5V Channel
• Negative Voltage Protection for Both E- Fuses
• Integrated, Dual-Channel Current Limit Switch
• Low 44mΩ On Resistance (RDS(ON)) for Both Power FETs
• 3A, ±10% Current Limit for 5V VIN Channel
• 4.5A, ±10% Current Limit for 12V VIN Channel
• 5.7V Typical Over-Voltage Protection (OVP) Threshold for 5V VIN Channel
• 15V Typical OVP Threshold for 12V VIN Channel

Typical Application Circuit

Applications

• Hard Disk Drives (HHDs)
• Solid-State Drives (SSDs)

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