LTC4444HMS8E-5#PBF

Overview

The LTC4444HMS8E-5#PBF is a high-voltage synchronous N-channel MOSFET driver manufactured by Analog Devices Inc. It operates within a supply voltage range of 7.2 V to 13.5 V and supports input voltages up to 100 V. The device features a single output channel with a peak output current capability of 3 A. Electrical performance includes a maximum propagation delay of 60 ns, an rise time of 80 ns, and a fall time of 50 ns. It functions with CMOS logic inputs and maintains a low operating supply current of 320 uA. The component is housed in an MSOP-E-8 package and is rated for operation between -40°C and +125°C.

Feature Summary

• Supports high-side and low-side synchronous rectification for N-channel MOSFETs
• Integrated bootstrap diode eliminates external component requirements
• Capable of driving MOSFETs with source potentials exceeding the supply voltage

Applications

• High-voltage synchronous buck converters
• Power distribution systems requiring hot-swap capabilities
• Industrial motor control circuits

Procurement Notes

Verify the specific suffix E-5 against the official Analog Devices datasheet to confirm pinout and electrical specifications match the design requirements. Ensure the MSOP-E-8 package dimensions are compatible with the PCB footprint. Confirm RoHS compliance status through the manufacturer's documentation before finalizing procurement.

Selection Notes

Select this component when designing circuits that require driving N-channel MOSFETs at high common-mode voltages. The single-channel configuration is suitable for half-bridge or synchronous rectifier applications. Consider the 3 A drive strength and 100 V input rating to ensure adequate margin for the target load and bus voltage conditions.

Part Context

This part belongs to the LTC4444 series of high-voltage MOSFET drivers from Analog Devices. It is designed specifically for applications where standard gate drivers cannot handle the high potential differences between the gate drive signal and the MOSFET source terminal. The series offers integrated solutions for power management in demanding industrial environments.

Replacement Considerations

Consult the official Analog Devices cross-reference list for verified substitutes. Generic equivalents may not support the same high-voltage input ratings or synchronous rectification features.