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L6743D - High current MOSFET driver

Description

L6743D is a flexible, high-frequency dual-driver specifically designed to drive N-channel MOSFETs connected in synchronous-rectified buck topology.

Table 1.

Features

  • Dual MOSFET driver for synchronous rectified converters High driving current for fast external MOSFET switching Integrated bootstrap diode High frequency operation Enable pin Adaptive dead-time management Flexible gate-drive: 5 V to 12 V compatible High-impedance (HiZ) management for output stage shutdown Preliminary OV protection SO8 package Combined with ST PWM controllers, the driver allows implementing complete voltage regulator so.

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Full PDF Text Transcription

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L6743D High current MOSFET driver Features ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ Dual MOSFET driver for synchronous rectified converters High driving current for fast external MOSFET switching Integrated bootstrap diode High frequency operation Enable pin Adaptive dead-time management Flexible gate-drive: 5 V to 12 V compatible High-impedance (HiZ) management for output stage shutdown Preliminary OV protection SO8 package Combined with ST PWM controllers, the driver allows implementing complete voltage regulator solutions for modern high-current CPUs and DCDC conversion in general. L6743D embeds high-current drivers for both high-side and lowside MOSFETS. The device accepts flexible power supply (5 V to 12 V) to optimize the gatedrive voltage for high-side and low-side maximizing the system efficiency.
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