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Analog Devices Semiconductor Electronic Components Datasheet

ADP3413 Datasheet

Dual Bootstrapped MOSFET Driver with Output Disable

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ADP3413 pdf
a
Dual Bootstrapped MOSFET Driver
with Output Disable
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
Multiphase Desktop CPU Supplies
Mobile Computing CPU Core Power Converters
Single-Supply Synchronous Buck Converters
Standard-to-Synchronous Converter Adaptations
GENERAL DESCRIPTION
The ADP3413 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 floatinghigh-side gate drivers.
The ADP3413 includes overlapping drive protection (ODP)
to prevent shoot-through current in the external MOSFETs.
The OD pin provides high speed control to quickly turn off
both gate drives.
The ADP3413 is specified over the commercial temperature
range of 0°C to 70°C and is available in an 8-lead SOIC package.
ADP3413
IN
7V
VCC
ADP3413
FUNCTIONAL BLOCK DIAGRAM
VCC
BST
IN
OD 3
OVERLAP
PROTECTION
CIRCUIT
ADP3413
PGND
DRVH
SW
DRVL
12V
D1
BST
CBST
DRVH
Q1
SW
1V
OD 3
DELAY
+1V
DRVL
PGND
Q2
REV. 0
Figure 1. General Application Circuit
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.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
www.analog.com
Fax: 781/326-8703
© Analog Devices, Inc., 2001


Analog Devices Semiconductor Electronic Components Datasheet

ADP3413 Datasheet

Dual Bootstrapped MOSFET Driver with Output Disable

No Preview Available !

ADP3413 pdf
ADP3413–SPECIFICATIONS1
(TA = 0؇C to 70؇C, VCC = 7 V, BST = 4 V to 26 V, OD > 2 V, unless otherwise noted.)
Parameter
Symbol
Conditions
Min Typ Max Unit
SUPPLY
Supply Voltage Range
Quiescent Current
OD INPUT
Input Voltage High2
Input Voltage Low2
Propagation Delay Time
PWM INPUT
Input Voltage High2
Input Voltage Low2
VCC
ICCQ
tpdlOD
tpdhOD
4.15
1
7.5 V
2 mA
2.0 V
0.8 V
15 30
ns
15 30
ns
2.3 V
0.8 V
HIGH-SIDE DRIVER
Output Resistance, Sourcing Current
Output Resistance, Sinking Current
Transition Times3 (See Figure 2)
Propagation Delay3, 4 (See Figure 2)
trDRVH
tfDRVH
tpdhDRVH
tpdlDRVH
VBST VSW = 5 V
VBST VSW = 7 V
VBST VSW = 5 V
VBST VSW = 7 V
VBST VSW = 7 V, CLOAD = 3 nF
VBST VSW = 7 V, CLOAD = 3 nF
VBST VSW = 7 V
VBST VSW = 7 V
LOW-SIDE DRIVER
Output Resistance, Sourcing Current
Output Resistance, Sinking Current
Transition Times3 (See Figure 2)
Propagation Delay3, 4 (See Figure 2)
trDRVL
tfDRVL
tpdhDRVL
tpdlDRVL
VCC = 5 V
VCC = 7 V
VCC = 5 V
VCC = 7 V
VCC = 7 V, CLOAD = 3 nF
VCC = 7 V, CLOAD = 3 nF
VCC = 7 V
VCC = 7 V
NOTES
1All limits at temperature extremes are guaranteed via correlation using standard Statistical Quality Control (SQC) methods.
2Logic inputs meet typical CMOS I/O conditions for source/sink current (~1 µA).
3AC specifications are guaranteed by characterization, but not production tested.
4For propagation delays, tpdhrefers to the specified signal going high; tpdlrefers to it going low.
Specifications subject to change without notice.
3.0 5.0
2.0 3.5
1.25 2.5
1.0 2.5
36 47
20 30
65 86
22 32
3.0 5.0
2.0 3.5
1.5 3.0
1.0 2.5
27 35
19 26
30 35
17 25
ns
ns
ns
ns
ns
ns
ns
ns
–2– REV. 0


Part Number ADP3413
Description Dual Bootstrapped MOSFET Driver with Output Disable
Maker Analog Devices
Total Page 8 Pages
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