ADP3417 Analog Devices, ADP3417 Datasheet
ADP3417
Manufacturer Part Number
ADP3417
Description
Dual Bootstrapped MOSFET Driver
Manufacturer
Analog Devices
Datasheet
1.ADP3417.pdf
(8 pages)
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a
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices.
GENERAL DESCRIPTION
The ADP3417 is a dual MOSFET driver optimized for driving
two N-channel MOSFETs which are the two switches in a
nonisolated synchronous buck power converter. Each of the
drivers is capable of driving a 3000 pF load with a 20 ns propa-
gation delay and a 30 ns transition time. One of the drivers can
be bootstrapped and is designed to handle the high voltage
slew rate associated with “floating” high side gate drivers.
The ADP3417 includes overlapping drive protection (ODP)
to prevent shoot-through current in the external MOSFETs.
The ADP3417 is specified over the commercial temperature
range of 0°C to 70°C and is available in an 8-lead SOIC package.
REV. A
FEATURES
All-In-One Synchronous Buck Driver
Bootstrapped High Side Drive
One PWM Signal Generates Both Drives
Anticross-Conduction Protection Circuitry
APPLICATIONS
Multiphase Desktop CPU Supplies
Single-Supply Synchronous Buck Converters
Standard-to-Synchronous Converter Adaptations
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
IN
1V
ADP3417
IN
Figure 1. General Application Circuit
FUNCTIONAL BLOCK DIAGRAM
ADP3417
DELAY
PROTECTION
OVERLAP
CIRCUIT
VCC
Dual Bootstrapped
VCC
1V
MOSFET Driver
PGND
BST
© Analog Devices, Inc., 2002
ADP3417
BST
DRVH
DRVL
C
SW
PGND
BST
D1
www.analog.com
DRVH
SW
DRVL
12V
Q1
Q2
TO
INDUCTOR
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