MPQ5864-AEC1 5-16V, 0.8A High-Side Switch QFN-17

MPQ5864-AEC1 5-16V, 0.8A High-Side Switch QFN-17

The MPQ5864 is a quad-channel, smart high- side power switch for a nominal current up to 0.8A per channel.

Key Specifications

Features

• Designed for Automotive Applications o 5V to 16V Input Voltage (VINx, where x= A or B) Range o 26V Short-to-Battery Protection with Back-to-Back MOSFET o Available in AEC-Q100 Grade 1
• Cooler Thermals o 180mΩ On Resistance (RDS(ON)) for Channels
• Reduces Board Size o Available in a TQFN-17 (3mmx4mm) Package o Available with Wettable Flanks
• High-Accuracy Current-Sense Capabilities o ±3% at 1A
• Extends Vehicle Battery Life o 5μA Low Standby Current
• Functional Safety System Design Capabilities o Documents Available for MPSafe™ System Design

Typical Application Circuit

Applications

• Cameras and Radars in Infotainment and Advanced Driver-Assistance Systems (ADAS)

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