L6747A High current MOSFET driver

The L6747A 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 the implementation of complete voltage regulator solutions for modern high-current CPUs and for DC-DC conversion in general.

The L6747A embeds high-current drivers for both high-side and low-side MOSFETS. The device accepts a flexible power supply of 5 V to 12 V.

This allows optimization of the high-side and lowside gate-drive voltage to maximize system efficiency.

The embedded bootstrap diode eliminates the need for external diodes. Anti shoot-through management prevents the high-side and low-side MOSFETs from conducting simultaneously and, combined with adaptive dead-time control, minimizes the LS body diode conduction time.

The L6747A features preliminary OV protection to protect the load from dangerous overvoltage due to MOSFET failures at startup.

The L6747A device is available in a VFDFPN8 3x3 mm package.

技术特性

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 overvoltage (OV) protection
VFDFPN8 3x3 mm package

功能框图

L6747A 订购信息

订购型号	产品状态	美金价格	数量	封装	包装形式	温度范围	材料声明
L6747ATR	Active		1000	VDFPN 8 3x3x1.0	Tape And Reel
L6747A	Active		1000	VDFPN 8 3x3x1.0	Tube

DATASHEET

描述	版本	大小
L6747A : High current MOSFET driver	1	410KB