L6743D datasheet(1/16 Pages) STMICROELECTRONICS

部件名	L6743D

功能描述	High current MOSFET driver

PDF	16 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

1 / 16 page

December 2008

Rev 1

1/16

1

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

Applications

■ High current VRM / VRD for desktop / server /

workstation CPUs

■ High current and high efficiency DC / DC

converter

Description

L6743D is a flexible, high-frequency dual-driver

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. L6743D embeds

high-current drivers for both high-side and low-

side MOSFETS. The device accepts flexible

power supply (5 V to 12 V) to optimize the gate-

drive 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.

L6743D 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 package.

SO8

Table 1.

Device summary

Order codes

Package

Packing

L6743D

SO8

Tube

L6743DTR

Tape and reel

www.st.com

类似零件编号 - L6743D

制造商	部件名	数据表	功能描述
STMicroelectronics	L6743	317Kb / 17P	High current MOSFET driver 20-Aug-2007
	L6743	354Kb / 17P	High current MOSFET driver 05-Jun-2008
	L6743B	246Kb / 16P	High current MOSFET driver 17-Jun-2008
	L6743BTR	246Kb / 16P	High current MOSFET driver 17-Jun-2008
	L6743Q	317Kb / 17P	High current MOSFET driver 20-Aug-2007

More results

类似说明 - L6743D

制造商	部件名	数据表	功能描述
Intersil Corporation	HV400MJ	131Kb / 11P	High Current MOSFET Driver August 1997
STMicroelectronics	L6743	317Kb / 17P	High current MOSFET driver 20-Aug-2007
	L6741	301Kb / 16P	High current MOSFET driver 20-Aug-2007
	L6743B	246Kb / 16P	High current MOSFET driver 17-Jun-2008
	L6743	354Kb / 17P	High current MOSFET driver 05-Jun-2008
Harris Corporation	HV400	3Mb / 10P	High Current MOSFET Driver
Harris Corporation	HV400-MJ	3Mb / 10P	High Current MOSFET Driver
STMicroelectronics	L6747ATR	415Kb / 15P	High current MOSFET driver 24-Mar-2010
STMicroelectronics	L6747C	341Kb / 15P	High current MOSFET driver 23-Apr-2010
ON Semiconductor	NCX57090Y	1Mb / 25P	Isolated High Current IGBT/MOSFET Gate Driver July, 2022 - Rev. 3