L6743Q数据手册集成电路（IC）的栅极驱动器规格书PDF

描述 Description

L6743, L6743Q is a flexible, high-frequency dualdriver specifically designed to drive N-Channel MOSFETs connected in Synchronous-Rectified Buck topology.
Combined with ST PWM Controllers, the driver allows implementing complete voltage regulator solutions for modern high-current CPUs and DCDC conversion in general. L6743, L6743Q embeds high-current drivers for both high-side and low-side MOSFETs. The device accepts flexible power supply (5V to 12V) to optimize the gatedrive voltage for High-Side and Low-Side maximizing the System Efficiency.
The Bootstrap diode is embedded saving the use of external diodes. Anti shoot-through management avoids high-side and low-side MOSFET to conduct simultaneously and, combined with Adaptive Dead-Time control, minimizes the LS body diode conduction time.
L6743, L6743Q embeds Preliminary OV Protection: after Vcc overcomes the UVLO and while the device is in HiZ, the LS MOSFET is turned ON to protect the load in case the output voltage overcomes a warning threshold protecting the output against HS failures.
The driver is available is SO8 and DFN10 3x3 packages.

特性 Features

SO8 and DFN10 3x3 Package
Preliminary OV protection
Flexible gate-drive: 5V to 12V compatible
Adaptive dead-time management
Dual MOSFET driver for synchronous rectified converters
Integrated bootstrap diode
High driving current for fast external MOSFET switching
Enable pin
High-impedance (HiZ) Management for output stage shutdown
High frequency operation

简介

L6743Q属于集成电路（IC）的栅极驱动器。由制造生产的L6743Q栅极驱动器栅极驱动器电源管理集成电路 (PMIC) 可用于提供隔离、放大、参考位移、自举或其他必要功能，这些功能可将来自电源转换应用中控制设备的信号连接到电源被控制通过的半导体设备（通常为 FET 或 IGBT）。任何特定设备提供的确切功能各不相同，但与它适合驱动的半导体配置相关。