LTC4444MPMS8E-5#PBF

Overview

The LTC4444MPMS8E-5#PBF is a high-voltage synchronous N-channel MOSFET driver manufactured by Analog Devices Inc. It integrates two drivers in an MSOP-E-8 package, supporting input voltages up to 100 V. The device operates with a supply voltage range of 7.2 V to 13.5 V and delivers a peak output current of 3 A. Key electrical parameters include a maximum propagation delay of 60 ns, rise time of 80 ns, and fall time of 50 ns. It functions with CMOS logic inputs and maintains a quiescent supply current of 320 uA. The component is rated for an extended industrial temperature range from -55°C to +150°C.

Feature Summary

• Integrated dual high-side and low-side gate drivers designed for synchronous rectification applications
• Capable of driving N-channel MOSFETs with input signals referenced to ground while handling high common-mode voltages
• Optimized for fast switching performance with specified rise and fall times to minimize conduction losses
• Includes internal circuitry to manage bootstrap charging and ensure reliable operation under high-voltage conditions

Applications

• High-voltage synchronous buck converters
• Motor control systems requiring isolated or high-side switching
• Industrial power supplies with wide input voltage ranges
• Automotive electronics operating in harsh thermal environments

Procurement Notes

Verify the specific suffix E-5 and MPMS8E-8 package code against the manufacturer's latest datasheet to confirm the military-grade temperature rating and pinout configuration. Ensure that the ordering information matches the exact part number including the #PBF lead-free designation. Cross-reference the RoHS compliance status and any recent lifecycle notices such as obsolescence or last-time buy notifications directly with Analog Devices before finalizing procurement plans.

Selection Notes

Select this component when designing circuits that require driving high-side N-channel MOSFETs with input voltages reaching 100 V. The wide operating temperature range makes it suitable for automotive and rugged industrial environments where standard commercial grade parts may fail. Consider the 3 A output drive capability to ensure adequate gate charge delivery for the target MOSFETs at the desired switching frequencies. Verify that the PCB layout supports the MSOP-E-8 package thermal requirements.

Part Context

This part belongs to the LTC4444 family of high-voltage MOSFET drivers. It shares functional similarities with other members like the IMS8E variant but differs in its extended temperature range and packaging specifications. The MPMS8E designation indicates a specific military or high-reliability grade version within the broader product line, distinguished by its ability to operate reliably at temperatures up to 150°C compared to the standard 125°C limit of commercial variants.

Replacement Considerations

LTC4444IMS8E-5#PBF

FAQ

What is the maximum input voltage supported by the LTC4444MPMS8E-5#PBF?

The device supports input voltages up to 100 V, allowing it to drive high-side MOSFETs in high-voltage applications.

Does the LTC4444MPMS8E-5#PBF support both high-side and low-side driving?

Yes, it contains two integrated drivers configured for both high-side and low-side synchronous rectification.

What is the operating temperature range for this specific part?

The LTC4444MPMS8E-5#PBF is rated for an extended temperature range from -55°C to +150°C.