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ADP3634ARDZ

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16
High Speed, Dual, 4 A MOSFET Driver
with Thermal Protection
ADP3623/ADP3624/ADP3625/ADP3633/ADP3634/ADP3635
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. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113 ©2009 Analog Devices, Inc. All rights reserved.
FEATURES
Industry-standard-compatible pinout
High current drive capability
Precise threshold shutdown comparator
UVLO with hysteresis
Overtemperature warning signal
Overtemperature shutdown
3.3 V-compatible inputs
10 ns typical rise time and fall time @ 2.2 nF load
Matched propagation delays between channels
Fast propagation delay
9.5 V to 18 V supply voltage (ADP3633/ADP3634/ADP3635)
4.5 V to 18 V supply voltage (ADP3623/ADP3624/ADP3625)
Parallelable dual outputs
Rated from −40°C to +85°C ambient temperature
Thermally enhanced packages, 8-lead SOIC_N_EP and
8-lead MINI_SO_EP
APPLICATIONS
AC-to-dc switch mode power supplies
DC-to-dc power supplies
Synchronous rectification
Motor drives
GENERAL DESCRIPTION
The ADP362x/ADP363x is a family of high current and dual high
speed drivers, capable of driving two independent N-channel
power MOSFETs. The family uses the industry-standard foot-
print but adds high speed switching performance and improved
system reliability.
The family has an internal temperature sensor and provides
two levels of overtemperature protection, an overtemperature
warning, and an overtemperature shutdown at extreme junction
temperatures.
The SD function, generated from a precise internal comparator,
provides fast system enable or shutdown. This feature allows
redundant overvoltage protection, complementing the protec-
tion inside the main controller device, or provides safe system
shutdown in the event of an overtemperature warning.
The wide input voltage range allows the driver to be compatible
with both analog and digital PWM controllers.
Digital power controllers are supplied from a low voltage
supply, and the driver is supplied from a higher voltage supply.
The ADP362x/ADP363x family adds UVLO and hysteresis
functions, allowing safe startup and shutdown of the higher
voltage supply when used with low voltage digital controllers.
The device family is available in thermally enhanced SOIC_N_EP
and MINI_SO_EP packaging to maximize high frequency and
current switching in a small printed circuit board (PCB) area.
FUNCTIONAL BLOCK DIAGRAM
1
8
2
7
3
6
4
5
OVERTEMPERATURE
PROTECTION
NONINVERTING
INA,
INA
PGND
INB,
INB
SD
OUTA
VDD
OUTB
OTW
V
DD
V
DD
INVERTING
NONINVERTING
INVERTING
UVLO
V
EN
08132-101
ADP3623/ADP3624/ADP3625
ADP3633/ADP3634/ADP3635
Figure 1.
ADP3623/ADP3624/ADP3625/ADP3633/ADP3634/ADP3635
Rev. A | Page 2 of 16
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
Timing %JBHSBNT ................................................................ 4
Absolute Maximum Ratings ............................................................ 6
ESD Caution .................................................................................. 6
Pin Configuration and Function Descriptions ............................. 7
Typical Performance Characteristics ............................................. 9
Test Circ uit ...................................................................................... 11
Theory of Operation ...................................................................... 12
Input Drive Requirements (INA,
INA
, INB,
INB
, and SD) .. 12
Low-Side Drivers (OUTA, OUTB) .......................................... 12
Shutdown (SD) Function .......................................................... 12
Overtemperature Protections ................................................... 12
Supply Capacitor Selection ....................................................... 13
PCB Layout Considerations ...................................................... 13
Parallel Operation ...................................................................... 13
Thermal Considerations ............................................................ 14
Outline Dimensions ....................................................................... 15
Ordering Guide .......................................................................... 16
REVISION HISTORY
7/09—Rev. 0 to Rev. A
Added ADP3623, ADP3625, ADP3633, and
ADP3635 .............................................................................. Universal
Changes to Features Section, General Description Section,
and Figure 1 ....................................................................................... 1
Changes to Table 1 ............................................................................ 3
Added Figure 4; Renumbered Sequentially .................................. 4
Added Figure 7 .................................................................................. 7
Added Table 3; Renumbered Sequentially .................................... 7
Added Figure 9 and Table 5 ............................................................. 8
Changes to Figure 10 ........................................................................ 9
Changes to Figure 16 to Figure 19 Captions ............................... 10
Changes to Figure 20 ...................................................................... 11
Changes to Figure 21, Input Drive Requirements (INA,
INA
, INB,
5/09—Revision 0: Initial Version
INB
, and SD) Section, and Figure 22 ........................ 12
Changes to Figure 23 and Parallel Operation Section ............... 13
Changes to Design Example Section ........................................... 14
Changes to Ordering Guide .......................................................... 16
ADP3623/ADP3624/ADP3625/ADP3633/ADP3634/ADP3635
Rev. A | Page 3 of 16
SPECIFICATIONS
V
DD
= 12 V, T
J
= −40°C to +125°C, unless otherwise noted.
1
Table 1.
Parameter Symbol Test Conditions/Comments Min Typ Max Unit
SUPPLY
Supply Voltage Range V
DD
ADP3633/ADP3634/ADP3635 9.5 18 V
V
DD
ADP3623/ADP3624/ADP3625 4.5 18 V
Supply Current I
DD
No switching, INA,
INA
, INB, and
INB
disabled 1.2 3 mA
Standby Current I
SBY
SD = 5 V 1.2 3 mA
UVLO
Turn-On Threshold Voltage V
UVLO_ON
V
DD
rising, T
A
= 25°C, ADP3633/ADP3634/ADP3635 8.0 8.7 9.5 V
V
UVLO_ON
V
DD
rising, T
A
= 25°C, ADP3623/ADP3624/ADP3625 3.8 4.2 4.5 V
Turn-Off Threshold Voltage V
UVLO_OFF
V
DD
falling, T
A
= 25°C, ADP3633/ADP3634/ADP3635 7.0 7.7 8.5 V
V
UVLO_OFF
V
DD
falling, T
A
= 25°C, ADP3623/ADP3624/ADP3625 3.5 3.9 4.3 V
Hysteresis ADP3633/ADP3634/ADP3635 1.0 V
ADP3623/ADP3624/ADP3625 0.3 V
DIGITAL INPUTS (INA,
INA
, INB,
INB
, SD)
Input Voltage High V
IH
2.0 V
Input Voltage Low V
IL
0.8 V
Input Current I
IN
0 V < V
IN
< V
DD
−20 +20 µA
SD Threshold High V
SD_H
1.19 1.28 1.38 V
V
SD_H
T
A
= 25°C 1.21 1.28 1.35 V
SD Threshold Low V
SD_L
T
A
= 25°C 0.95 1.0 1.05 V
SD Hysteresis V
SD_HYST
T
A
= 25°C 240 280 320 mV
Internal Pull-Up/Pull-Down Current 6 µA
OUTPUTS (OUTA, OUTB)
Output Resistance, Unbiased VDD = PGND 80 kΩ
Peak Source Current See Figure 20 4 A
Peak Sink Current See Figure 20 −4 A
SWITCHING TIME
OUTA, OUTB Rise Time t
RISE
C
LOAD
= 2.2 nF, see Figure 3 and Figure 4 10 25 ns
OUTA, OUTB Fall Time t
FALL
C
LOAD
= 2.2 nF, see Figure 3 and Figure 4 10 25 ns
OUTA, OUTB Rising Propagation Delay t
D1
C
LOAD
= 2.2 nF, see Figure 3 and Figure 4 14 30 ns
OUTA, OUTB Falling Propagation Delay t
D2
C
LOAD
= 2.2 nF, see Figure 3 and Figure 4 22 35 ns
SD Propagation Delay Low t
dL_SD
See Figure 2 32 45 ns
SD Propagation Delay High t
dH_SD
See Figure 2 48 75 ns
Delay Matching Between Channels 2 ns
OVERTEMPERATURE PROTECTION
Overtemperature Warning Threshold T
W
See Figure 6 120 135 150 °C
Overtemperature Shutdown Threshold T
SD
See Figure 6 150 165 180 °C
Temperature Hysteresis for Shutdown T
HYS_SD
See Figure 6 30 °C
Temperature Hysteresis for Warning T
HYS_W
See Figure 6 10 °C
Overtemperature Warning Low V
OTW_OL
Open drain, −500 µA 0.4 V
1
All limits at temperature extremes guaranteed via correlation using standard statistical quality control (SQC) methods.
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16

ADP3634ARDZ

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Manufacturer:
Analog Devices Inc.
Description:
Gate Drivers High Speed Dual 4A MOSFET Dvr
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