LTC4440ES6#TRMPBF

Overview

The LTC4440ES6#TRMPBF is a high-speed, high-voltage N-channel MOSFET gate driver designed for high-side applications. It operates with a supply voltage range of 4V to 15V and supports bootstrap voltages up to 80V. The device features non-inverting logic inputs compatible with 1.3V and 1.6V thresholds. It delivers peak output currents of 2.4A for both sourcing and sinking. Typical rise and fall times are 10ns and 7ns, respectively. It is housed in a TSOT-23-6 package and functions within a temperature range of -40°C to 85°C.

Feature Summary

• High-side gate driver architecture optimized for driving N-channel MOSFETs
• Capable of supporting bootstrap voltages up to 80V for high-side switching
• Provides strong 2.4A peak drive current for rapid MOSFET switching transitions
• Compatible with low-voltage logic inputs including 1.3V and 1.6V thresholds

Applications

• Synchronous buck and boost DC/DC converter topologies
• Half-bridge and full-bridge power conversion circuits
• Motor control systems requiring high-side N-channel FET driving
• Isolated power supply primary side switching applications

Procurement Notes

Verify the specific suffix #TRMPBF indicates tape and reel packaging when sourcing components. Confirm that the ES6 variant corresponds to the specified commercial temperature range and TSOT-23-6 package dimensions. Ensure compatibility with the intended logic voltage levels, specifically checking against the 1.3V and 1.6V input thresholds. Cross-reference the manufacturer part number with official Analog Devices documentation to confirm RoHS compliance and current production status before finalizing procurement plans.

Selection Notes

Select this component when a compact high-side driver is required for N-channel MOSFETs in space-constrained designs. The TSOT-23-6 package offers a small footprint suitable for dense PCB layouts. Consider the 80V bootstrap rating for applications involving higher bus voltages. The non-inverting input simplifies control logic integration. Evaluate the 2.4A drive capability against the total gate charge of the target MOSFET to ensure adequate switching speeds without excessive thermal stress.

Part Context

This component belongs to the LTC4440 family of high-speed, high-voltage gate drivers from Analog Devices. It is specifically engineered for driving N-channel MOSFETs in high-side configurations where traditional level-shifting methods are inefficient. The device integrates the necessary circuitry to handle floating source potentials, making it a standard solution for synchronous rectification and bridge converter applications requiring fast switching and robust performance.

Replacement Considerations

LTC4440ES6-5#TRPBF

FAQ

What is the maximum bootstrap voltage supported by the LTC4440ES6?

The device supports a maximum high-side voltage of 80V when using a bootstrap configuration.

Does the LTC4440ES6 feature an inverting or non-inverting input?

The LTC4440ES6 utilizes a non-inverting input logic configuration.