L6741 datasheet(1/16 Pages) STMICROELECTRONICS

部品番号	L6741

部品情報	High current MOSFET driver

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メーカー	STMICROELECTRONICS [STMicroelectronics]

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August 2007

Rev 1

1/16

1

L6741

High current MOSFET driver

Features

■ Dual MOSFET driver for synchronous rectified

converters

■ High driving current for fast external MOSFET

switching

■ High frequency operation

■ Integrated bootstrap diode

■ Adaptive dead-time management

■ Flexible gate-drive: 5V to 12V compatible

■ High-impedance (HiZ) management for output

stage shutdown

■ Preliminary OV protection

■ SO-8 package

Applications

■ High current VRM / VRD for Desktop / Server /

Workstation CPUs

■ High current DC / DC converters

Description

L6741 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. L6741 embeds high-current

drivers for both high-side and low-side

MOSFETS. The device accepts flexible power

supply (5V to 12V) 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.

L6741 embeds Preliminary OV Protection: after

Vcc overcomes the UVLO and while the device is

in HiZ, the Low-Side MOSFET is turned ON to

protect the load in case the output voltage

overcomes a warning threshold protecting the

load from High-Side MOSFET failures.

The driver is available is SOP8 package.

SO-8

Table 1.

Device summary

Order code

Package

Packaging

L6741

SO-8

Tube

L6741TR

SO-8

Tape & Reel

www.st.com

同様の部品番号 - L6741

メーカー	部品番号	データシート	部品情報
STMicroelectronics	L6740L	762Kb / 44P	Hybrid controller (41) for AMD SVID and PVID processors 01-Aug-2007
	L6740LTR	762Kb / 44P	Hybrid controller (41) for AMD SVID and PVID processors 01-Aug-2007
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	L6743	354Kb / 17P	High current MOSFET driver 05-Jun-2008
	L6743B	246Kb / 16P	High current MOSFET driver 17-Jun-2008

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同様の説明 - L6741

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