LTC4440AHMS8E-5#PBF

Overview

The LTC4440AHMS8E-5#PBF is a high-speed, high-voltage high-side N-channel MOSFET gate driver from Analog Devices. It operates with input voltages up to 80V and withstands 100V transients. The device features a peak pull-up current of 1.1A and an output pull-down resistance of 1.85 Ohms. It functions within a supply voltage range of 4V to 15V, drawing 200µA in operating mode. Designed for robust performance, it supports frequencies up to 500kHz and operates across a temperature range of -40°C to +85°C.

Feature Summary

• Rugged architecture tolerant of 100V VIN transients
• High-frequency operation up to 500kHz
• Independent logic control compatible with standard CMOS/TTL levels

Applications

• High-side switching in DC-DC converters
• Motor control systems requiring high-side drive
• Power management circuits with elevated common-mode voltages

Procurement Notes

Verify the specific suffix E-5 against the official Analog Devices datasheet to confirm pinout and electrical characteristics match your design requirements. Ensure compatibility with your PCB footprint, as the MSOP-8 package dimensions are critical for assembly. Cross-reference the RoHS compliance status directly with the manufacturer's latest documentation before finalizing procurement decisions.

Selection Notes

Select this component when driving N-channel MOSFETs in high-side configurations with input voltages exceeding standard logic levels. The 80V continuous rating and 100V transient tolerance make it suitable for industrial and automotive applications. Consider the 1.1A peak current capability for moderate load switching speeds. Evaluate thermal performance within the MSOP-8 package constraints for your specific power dissipation needs.

Part Context

This part belongs to the LTC4440 family of high-side gate drivers designed by Analog Devices (formerly Linear Technology). The series focuses on providing reliable gate drive solutions for high-voltage environments. The AHMS8E-5 variant specifically denotes the A-grade temperature range and the MSOP-8 package configuration, distinguishing it from other package options like SOT-23-6 or wider operating ranges found in non-A variants.

Replacement Considerations

Direct substitutes include other parts within the LTC4440 family, such as the LTC4440EMS8E-5#PBF, which shares similar functionality but may differ in grade or packaging. Verify pin compatibility and electrical specifications against the target application before substitution.