ADP3416JR Analog Devices, ADP3416JR Datasheet

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ADP3416JR

Manufacturer Part Number
ADP3416JR
Description
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 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
REV. A
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
IN
1V
ADP3416
Figure 1. General Application Circuit
DELAY
VCC
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.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
1V
7V
IN
FUNCTIONAL BLOCK DIAGRAM
D1
ADP3416
PROTECTION
BST
DRVH
SW
DRVL
PGND
C
OVERLAP
CIRCUIT
BST
VCC
Dual Bootstrapped
12V
Q1
Q2
MOSFET Driver
PGND
BST
© Analog Devices, Inc., 2002
ADP3416
www.analog.com
DRVH
SW
DRVL

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ADP3416JR Summary of contents

Page 1

... IN 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. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. high voltage slew rate associated with “ ...

Page 2

ADP3416–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 (See Figure Propagation Delay (See ...

Page 3

... ADP3416 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 Temperature Package Model Range ADP3416JR 0°C to 70°C PIN FUNCTION DESCRIPTIONS –3– ADP3416 ORDERING GUIDE Package Description ...

Page 4

ADP3416 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

VCC = 5V DRVH 5V/DIV R3 IN DRVL R2 5V/DIV 2V/DIV R1 40ns/DIV TPC 1. DRVH Fall and DRVL Rise Times 35 DRVL @ VCC = 7V 30 DRVL @ VCC = 5V 25 ...

Page 6

ADP3416 THEORY OF OPERATION The ADP3416 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

Printed Circuit Board Layout Considerations Use the following general guidelines when designing printed circuit boards: 1. Trace out the high current paths and use short, wide traces to make these connections. 2. Connect the PGND Pin of the ADP3416 as ...

Page 8

ADP3416 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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