L6743BTR

Gate Driver Overview

The L6743BTR is a high-current half-bridge MOSFET gate driver manufactured by STMicroelectronics. It operates within a supply voltage range of 10.2 V to 13.8 V and delivers an output current of 3 A. The device features a maximum propagation delay of 75 ns and consumes an operating supply current of 5 mA. Packaged in an 8-pin VFDFPN format, it is designed for efficient switching control in power electronics applications requiring robust gate drive capabilities.

Gate Driver Feature Summary

• High current capability with 3 A output drive strength
• Fast switching performance with 75 ns maximum propagation delay
• Integrated high-impedance state management via EN signal control

Gate Driver Applications

• Half-bridge power stage driving
• MOSFET gate control in DC-DC converters
• Motor driver interfaces

Gate Driver Procurement Notes

Verify the specific suffix BTR against the official datasheet to confirm package type and tape-and-reel configuration. Ensure compatibility with the target PCB footprint for the 8VFDFPN package. Cross-reference the manufacturer's latest documentation for any updates on moisture sensitivity levels or recommended soldering profiles prior to procurement.

Gate Driver Selection Notes

Select this component when a compact half-bridge driver with 3 A peak current is required. The 10.2 V to 13.8 V supply range suits standard 12 V systems. Consider the 75 ns propagation delay for timing-sensitive designs. The 8-pin VFDFPN package offers space efficiency compared to larger alternatives.

Gate Driver Part Context

This part belongs to STMicroelectronics' family of high-current MOSFET drivers. It serves as a specialized interface between low-power control logic and high-power switching elements. The L6743 series is engineered for reliability in automotive and industrial power conversion environments where precise gate control is critical.

Gate Driver Replacement Considerations

The L6743B is a related variant; verify if the non-trailing suffix denotes a different packaging option rather than a functional change. Confirm pinout compatibility before substitution.