LTC4380HMS-4#PBF

Overview

The LTC4380HMS-4#PBF is a low quiescent current surge stopper designed to protect loads from high voltage transients. It operates within a voltage range of 4 V to 72 V and features an MSOP-10 package with SMD/SMT termination. The device draws a minimum operating current of 8 uA and functions reliably across a temperature range of -40 C to +125 C. It holds AEC-Q100 qualification for automotive applications.

Feature Summary

• Clamps the gate voltage of an external N-channel MOSFET to limit output voltage during overvoltage events such as load dump.
• Provides overcurrent protection using an internal multiplier that generates a TMR pin current proportional to VDS and ID.
• Drives back-to-back MOSFETs via the GATE pin for reverse input protection, eliminating Schottky diode voltage drop.

Applications

• Automotive systems including load dump protection
• Avionics power distribution networks
• Industrial equipment requiring transient suppression

Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or certified partners. Confirm the specific suffix matches the required thermal and electrical specifications. Request official datasheets and traceability documentation to ensure compliance with AEC-Q100 standards. Validate packaging integrity upon receipt to prevent damage to the MSOP-10 package.

Selection Notes

Select this variant for applications requiring fixed gate clamp voltages suitable for 24V/28V systems. Choose based on the need for low quiescent current operation in always-on circuits. Ensure the external MOSFET selection aligns with the device's clamping capabilities. Consider the MSOP-10 package constraints for PCB layout and thermal management requirements.

Part Context

This component belongs to the LTC4380 series of surge suppressors manufactured by Analog Devices. The series includes various packages and temperature grades tailored for different environmental conditions. The H suffix indicates an extended industrial temperature range capability up to 125 C.

Replacement Considerations

LTC4380HMS-4#WPBF