MPQ5850GJ-Z

OR Controllers, Ideal Diodes Overview

The MPQ5850GJ-Z is a smart diode controller designed to drive an external N-channel MOSFET for reverse input protection. It operates within a supply voltage range of 3.3 V to 36 V and supports a maximum blocking voltage of 42 V. The device features a 20 mV ultra-low dropout, minimizing power loss during operation. It provides a gate drive capability of 170 mA pull-up and 430 mA pull-down currents. The component is qualified under AEC-Q100 Grade 1 standards and functions reliably across a temperature range of -40 °C to +150 °C (Tj).

OR Controllers, Ideal Diodes Feature Summary

• Drives external N-channel MOSFETs to replace Schottky diodes for reverse polarity protection.
• Integrates a boost converter to ensure functionality down to 0 V input voltage.
• Provides Power Good indication for output regulation status and fast pull-up capabilities.

OR Controllers, Ideal Diodes Applications

• Automotive system protection circuits.
• Automotive ADAS systems including cameras.
• Automotive infotainment systems such as digital clusters and head units.

OR Controllers, Ideal Diodes Procurement Notes

Verify the specific suffix against official Monolithic Power Systems documentation to confirm exact qualification grades and package variations. Confirm that the intended application environment aligns with the specified operating temperature range and electrical ratings. Ensure compatibility with external N-channel MOSFET selection based on the provided gate drive current specifications.

OR Controllers, Ideal Diodes Selection Notes

Select this component when reverse input protection is required in automotive or battery-powered environments. The integrated boost converter allows operation during cold-crank conditions where input voltage drops significantly. The low quiescent current in standby mode makes it suitable for applications requiring extended battery life without continuous power drain.

OR Controllers, Ideal Diodes Part Context

This part belongs to the MPQ5850 series of smart diode controllers from Monolithic Power Systems. It is engineered specifically for high-reliability automotive applications, offering robust transient handling capabilities including load dump protection up to 42 V. The series is designed to meet stringent automotive standards while maintaining a compact footprint.

OR Controllers, Ideal Diodes Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.