LTC4446IMS8E#PBF

Overview

The LTC4446IMS8E#PBF is a high-speed, high-voltage half-bridge MOSFET gate driver manufactured by Analog Devices Inc. It operates with an input voltage range of 4.5V to 100V and supports supply voltages up to 80V. The device features independent PWM inputs for high-side and low-side control, providing robust drive currents of 2.4A peak source and sink capability. Packaged in an 8-pin MSOP, it includes integrated protections such as shoot-through prevention and under-voltage lockout, ensuring reliable operation in demanding power conversion environments.

Feature Summary

• Supports high-voltage half-bridge configurations with independent high-side and low-side PWM inputs
• Integrates shoot-through prevention logic to minimize cross-conduction losses
• Provides high peak drive current for rapid MOSFET switching transitions
• Includes under-voltage lockout mechanisms for enhanced operational safety

Applications

• High-voltage synchronous buck converters
• Half-bridge DC-DC converter stages
• Industrial motor drive systems
• Power factor correction circuits

Procurement Notes

Verify the specific suffix E and #PBF against official Analog Devices documentation to confirm RoHS compliance and tape-and-reel packaging specifications. Confirm that the IMS8 package variant matches your PCB footprint requirements. Cross-reference the datasheet revision date to ensure compatibility with your design's electrical constraints and thermal management strategies.

Selection Notes

Select this component when designing half-bridge topologies requiring input voltages up to 100V. Ensure the application demands independent control signals for both bridge legs. Verify that the required switching frequency aligns with the driver's propagation delay characteristics. Consider the thermal performance of the MSOP package relative to the expected duty cycle and ambient temperature conditions.

Part Context

This part belongs to the LTC4440/LTC4446 family of high-voltage gate drivers designed for industrial and automotive applications. It shares functional similarities with the LTC4440 but offers specific pinout and feature variations tailored for half-bridge implementations. The series is characterized by its ability to operate directly from high-voltage rails without external level shifting.

Replacement Considerations

LTC4440EMS8E#PBF