L6747C datasheet(1/15 Pages) STMICROELECTRONICS

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April 2010

Doc ID 17127 Rev 1

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L6747C

High current MOSFET driver

Features

■ Dual MOSFET driver for synchronous rectified

converters

■ High driving current for fast external MOSFET

switching

■ 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

Applications

■ High current VRM / VRD for desktop / server /

workstation CPUs

■ High current and high efficiency DC-DC

converters

Description

The L6747C 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 the implementation of complete voltage

regulator solutions for modern high-current CPUs

and for DC-DC conversion in general.

The L6747C 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 low-

side gate-drive voltage to maximize system

efficiency.

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 L6747C features preliminary OV protection to

protect the load from dangerous overvoltage due

to MOSFET failures at startup.

The driver is available in a VFDFPN8 3x3 mm

package.

VFDFPN8 3x3 mm

Table 1.

Device summary

Order codes

Package

Packing

L6747C

VFDFPN8

Tube

L6747CTR

VFDFPN8

Tape and reel

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Số phần tương tự - L6747C

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
STMicroelectronics	L6747A	415Kb / 15P	High current MOSFET driver 24-Mar-2010
STMicroelectronics	L6747ATR	415Kb / 15P	High current MOSFET driver 24-Mar-2010

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Intersil Corporation	HV400MJ	131Kb / 11P	High Current MOSFET Driver August 1997
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Harris Corporation	HV400-MJ	3Mb / 10P	High Current MOSFET Driver
STMicroelectronics	L6743D	423Kb / 16P	High current MOSFET driver 09-Dec-2008
STMicroelectronics	L6747ATR	415Kb / 15P	High current MOSFET driver 24-Mar-2010
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