LTC4364HMS-1#PBF

Overview

The LTC4364HMS-1#PBF is a board-mount surge stopper with an integrated ideal diode controller, manufactured by Analog Devices Inc. It operates within a voltage range of 4 VDC to 80 VDC and features a maximum operating current rating of 750 uA. The device is housed in a surface-mount MSOP-10 package, measuring 3 mm in width and 1.75 mm in height. Designed for robust performance, it supports an extended temperature range from -40°C to +125°C. This component provides comprehensive protection against overvoltage, undervoltage, and reverse polarity conditions while managing power loss through ideal diode functionality.

Feature Summary

• Integrates surge stopping capability with ideal diode control to minimize power loss in the power path.
• Provides latch-off fault response mechanism that locks out the external MOSFET during persistent faults until manually reset.
• Supports wide input voltage operation up to 80V with clamping capabilities exceeding standard ratings for transient protection.
• Includes bidirectional protection features handling reverse input voltages down to -40V and reverse output protection.

Applications

• Automotive electronic systems requiring high reliability against load dump and voltage transients
• Avionics power distribution networks needing precise overvoltage and undervoltage monitoring
• Industrial equipment protection circuits demanding robust surge suppression in harsh environments

Procurement Notes

Verify the specific suffix designation to ensure compatibility with required thermal and mechanical specifications. Confirm that the MSOP-10 package dimensions align with the target PCB footprint constraints. Check for any recent Product Change Notifications regarding manufacturing site or material updates. Ensure that the supply chain source is authorized to guarantee component authenticity and traceability. Review datasheet revisions to confirm electrical characteristics match the design requirements.

Selection Notes

Select this component when a combined solution for surge protection and ideal diode rectification is required. It is suitable for applications where minimizing conduction losses across the power path is critical. Consider this part for designs needing adjustable output clamping voltages and precise input monitoring. Evaluate the need for latch-off functionality to prevent damage during sustained fault conditions compared to non-latching alternatives.

Part Context

This device belongs to the LTC4364 family of Surge Stopper controllers, which are designed to protect sensitive loads from input power supply disturbances. The family includes variants with different pin counts and packages, such as DFN and SOIC options. The LTC4364 series distinguishes itself by integrating both surge suppression and ideal diode control in a single IC, simplifying system architecture and reducing component count in power management designs.

Replacement Considerations

Direct substitutes within the same family include LTC4364HDE-1#PBF and LTC4364HS-1#PBF, though package differences must be accounted for. Cross-referencing with other Analog Devices surge stoppers requires verifying pinout compatibility and electrical parameter alignment. No alternative manufacturers offer identical integrated functionality; redesign may be necessary if switching to discrete solutions.