LT4363IMS-2#PBF

Overview

The LT4363IMS-2#PBF is a high-voltage surge stopper with current limit manufactured by Analog Devices Inc. It operates within an input voltage range of 4 VDC to 80 VDC and features an MSOP-12 surface-mount package measuring 4 mm in length, 3 mm in width, and 0.86 mm in height. The device supports a maximum operating temperature of +85°C and a minimum of -40°C. It includes a shutdown pin for control and offers automatic retry functionality upon fault clearance.

Feature Summary

• Provides board-mounted protection against high-voltage surges and overcurrent conditions
• Features automatic retry mechanism that re-enables operation after transient faults clear
• Includes a shutdown pin allowing external control or latching off during sustained faults

Applications

• Automotive electronic systems requiring robust power line protection
• Avionics equipment needing reliable surge suppression in harsh environments
• Industrial control circuits demanding high-voltage tolerance and current limiting

Procurement Notes

Verify component authenticity through authorized Analog Devices distributors. Confirm the specific suffix matches the required package and temperature grade. Check for recent product change notifications regarding manufacturing updates. Ensure compatibility with existing PCB footprints before integration.

Selection Notes

Select this model when automatic retry behavior is preferred over latching shutdown. Compare against the LT4363-1 variant if latching protection is required instead. Consider the MSOP-12 package constraints for thermal management and space limitations in dense layouts.

Part Context

This component belongs to the LT4363 series of high-voltage surge stoppers. It is designed to protect downstream circuitry from input voltage transients while managing load currents. The device integrates a controller and external MOSFET drive capability for efficient power path management.

Replacement Considerations

LT4363IMS-2#TRPBF (Tape and Reel version)

FAQ

How does the LT4363IMS-2 handle persistent overvoltage conditions?

It automatically retries after a cool-down delay once the overvoltage condition clears.

What is the function of the SHDN pin on this device?

The SHDN pin allows for external shutdown control or can be used to reset the device if it enters a latched-off state.