ADP3417JR Analog Devices, ADP3417JR Datasheet

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ADP3417JR

Manufacturer Part Number
ADP3417JR
Description
ADP3417JRDual Bootstrapped MOSFET Driver
Manufacturer
Analog Devices
Datasheet

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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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ADP3417JR Summary of contents

Page 1

... 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 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 ...

Page 2

ADP3417–SPECIFICATIONS Parameter SUPPLY Supply Voltage Range Quiescent Current PWM INPUT 2 Input Voltage High 2 Input Voltage Low HIGH SIDE DRIVER Output Resistance, Sourcing Current Output Resistance, Sinking Current 3 Transition Times 3 Transition Times 3, 4 Propagation Delay LOW ...

Page 3

... ADP3417 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality. REV. A ORDERING GUIDE Temperature Package Model Range ADP3417JR 0°C to 70°C BST NC VCC PIN FUNCTION DESCRIPTIONS –3– ADP3417 Package ...

Page 4

ADP3417 IN tpdl DRVL DRVL DRVH-SW SW Figure 2. Nonoverlap Timing Diagram (Timing Is Referenced to the 90% and 10% Points Unless Otherwise Noted) tf DRVL tpdh tr DRVH DRVH V TH –4– tpdl tr DRVH DRVL tf DRVH V ...

Page 5

DRVH 1 DRVL 2 TPC 1. DRVH Fall and DRVL Rise Times 28 VCC = 12V C = 3nF LOAD 26 DRVL 24 DRVH 125 100 JUNCTION TEMPERATURE – C TPC ...

Page 6

ADP3417 THEORY OF OPERATION The ADP3417 is a dual MOSFET driver optimized for driving two N-channel MOSFETs in a synchronous buck converter topology. A single PWM input signal is all that is required to properly drive the high side and ...

Page 7

Typical Application Circuits The circuit in Figure 3 shows how three ADP3417 drivers can be combined with the ADP3163 to form a total power conversion solution for V generation for an Intel Pentium CC(CORE) Figure Intel Pentium ...

Page 8

ADP3417 0.25 (0.0098) 0.10 (0.0040) CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS (IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN COMPLIANT TO JEDEC STANDARDS MS-012AA Revision History Location 08/02—Data Sheet changed ...

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