LTC4447IDD#PBF

Overview

The LTC4447IDD#PBF is a half-bridge gate driver IC manufactured by Analog Devices Inc. It operates within an industrial temperature range of -40°C to +125°C and is housed in a 12-WFDFN (3x3) exposed pad package. The device provides high-current drive capabilities with peak output currents of 2A source and 4A sink. It supports input voltages up to 28V and features adjustable dead-time control to prevent shoot-through in half-bridge configurations.

Feature Summary

• Integrated adjustable dead-time control for reliable half-bridge operation
• High peak output current capability for fast MOSFET switching
• Wide supply voltage range supporting various power stages

Applications

• Half-bridge power converter topologies
• Motor driver circuits requiring isolated or non-isolated gate driving
• Industrial power management systems

Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance and tube packaging when sourcing. Confirm the 12-WFDFN package dimensions match your PCB footprint requirements. Ensure the operating temperature range meets your system's thermal constraints. Cross-reference the datasheet revision date to ensure compatibility with your design specifications.

Selection Notes

Select this component when a compact half-bridge driver with integrated dead-time is required. It is suitable for applications needing moderate drive strength without external timing components. Consider the exposed pad thermal performance for high-power density designs. Evaluate the 28V maximum rating against your bus voltage to ensure adequate headroom.

Part Context

This part belongs to the LTC4447 family of gate drivers designed for efficient power conversion. It simplifies half-bridge design by integrating dead-time logic, reducing component count compared to discrete solutions. The DFN package offers a small footprint ideal for space-constrained portable and industrial electronics.

Replacement Considerations

Check for direct pin-compatible alternatives from Analog Devices such as other LTC half-bridge drivers. Verify that any substitute maintains the same 12-WFDFN package and electrical characteristics. Ensure the replacement supports the required input voltage and current drive levels.