REV. A

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a

ADP3416

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781/329-4700

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Fax: 781/326-8703

© Analog Devices, Inc., 2002

Dual Bootstrapped

MOSFET Driver

FUNCTIONAL BLOCK DIAGRAM

IN

VCC

OVERLAP

PROTECTION

CIRCUIT

BST

DRVH

SW

DRVL

PGND

ADP3416

FEATURES

All-In-One Synchronous Buck Driver

Bootstrapped High Side Drive

One PWM Signal Generates Both Drives

Anticross-Conduction Protection Circuitry

Pulse-by-Pulse Disable Control

APPLICATIONS

Mobile Computing CPU Core Power Converters

Multiphase Desktop CPU Supplies

Single-Supply Synchronous Buck Converters

Standard-to-Synchronous Converter Adaptations

GENERAL DESCRIPTION

The ADP3416 is a dual MOSFET driver optimized for driving

two N-channel MOSFETs which are the two switches in a

nonisolated synchronous buck power converter. One of the

drivers can be bootstrapped and is designed to handle the

IN

VCC

ADP3416

BST

DRVH

SW

DRVL

PGND

DELAY

1V

1V

12V

7V

Q1

Q2

D1

Figure 1. General Application Circuit

high voltage slew rate associated with “floating” high side

gate drivers. The ADP3416 includes overlapping drive pro-

tection (ODP) to prevent shoot-through current in the external

MOSFETs.

The ADP3416 is specified over the commercial temperature

range of 0

°C to 70°C and is available in an 8-lead SOIC package.