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L6743BTR
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Product Detailed Parameters
- Description：IC GATE DRVR HALF-BRIDGE 8VFDFPN
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR)
- Driven Configuration：Half-Bridge
- Channel Type：Synchronous
- Number of Drivers：2
- Gate Type：MOSFET (N-Channel)
- Voltage - Supply：5V ~ 12V
- Logic Voltage - VIL, VIH：0.8V, 2V
- Current - Peak Output (Source, Sink)：2A, -
- Input Type：Non-Inverting
- Rise / Fall Time (Typ)：-
- Operating Temperature：0°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：8-VDFN Exposed Pad
- Supplier Device Package：8-VFDFPN (3x3)
- Grade：-
- Qualification：-
- High Side Voltage - Max (Bootstrap)：41 V
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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.
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
Applications
- Half-bridge power stage driving
- MOSFET gate control in DC-DC converters
- Motor driver interfaces
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.
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.
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.
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.
