LTC4440EMS8E#PBF

Overview

The LTC4440EMS8E#PBF is a high-speed, high-voltage high-side gate driver manufactured by Analog Devices Inc. It operates within a supply voltage range of 6.5 V to 80 V and supports input voltages up to 100 V. The device delivers a peak output current of 2.4 A with typical rise and fall times of 100 ns and 70 ns, respectively. It functions as a single-channel driver for N-channel MOSFETs, providing an output voltage range of 8 V to 15 V. The component operates at a quiescent current of 250 uA and is rated for an ambient temperature range of -40°C to +85°C. It is housed in an 8-lead MSOP-E package.

Feature Summary

• Provides high-side driving capability for N-channel power MOSFETs with integrated bootstrap functionality.
• Features non-inverting logic inputs compatible with standard digital control signals.
• Designed for high-speed switching applications with optimized rise and fall characteristics.

Applications

• High-side switching in DC-DC converter topologies
• Motor control systems requiring high-voltage gate drive
• Power management circuits utilizing external N-channel MOSFETs

Procurement Notes

Verify the specific suffix #PBF indicates lead-free packaging compliance when sourcing. Confirm the MSOP-E-8 package dimensions match the PCB footprint requirements. Ensure the operating voltage does not exceed the 80 V maximum rating for the supply pin or 100 V for the input protection. Check availability status as distribution may vary by region.

Selection Notes

Select this component when a single high-side driver is required for voltages up to 80 V. Consider the 2.4 A peak current capability against the gate charge of the target MOSFET. Evaluate the 100 ns transition times against switching frequency requirements. Compare against the LTC4440ES6-5#TRPBF if a TSOT-23-6 package is preferred instead of MSOP-E-8.

Part Context

This part belongs to the LTC4440 series of high-side gate drivers from Analog Devices. The series includes variants such as the LTC4440ES6-5#TRPBF which utilizes a different package format. The EMS8E designation specifically identifies the MSOP-E-8 surface-mount package variant within this product family.

Replacement Considerations

The LTC4440ES6-5#TRPBF serves as a package alternative in the same series but uses a TSOT-23-6 footprint. Direct pin-to-pin replacement requires verifying the package outline differences. Other parts in the broader gate driver category are not direct substitutes due to voltage or configuration differences.