MOSFET Driver. ADP3623 Datasheet

ADP3623 Driver. Datasheet pdf. Equivalent


Part ADP3623
Description (ADP3623 - ADP3635) 4A MOSFET Driver
Feature www.DataSheet4U.com High Speed, Dual, 4 A MOSFET Driver with Thermal Protection ADP3623/ADP3624/ADP.
Manufacture Analog Devices
Datasheet
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ADP3623
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High Speed, Dual, 4 A MOSFET Driver
with Thermal Protection
ADP3623/ADP3624/ADP3625/ADP3633/ADP3634/ADP3635
FEATURES
GENERAL DESCRIPTION
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
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
VDD
SD 1
INA, 2
INA
VEN
NONINVERTING
ADP3623/ADP3624/ADP3625
ADP3633/ADP3634/ADP3635
8 OTW
OVERTEMPERATURE
PROTECTION
VDD
7 OUTA
PGND 3
INB, 4
INB
INVERTING
NONINVERTING
INVERTING
UVLO
6 VDD
5 OUTB
Figure 1.
Rev. A
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rights of third parties that may result from its use. Specifications subject to change without notice. No
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Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2009 Analog Devices, Inc. All rights reserved.



ADP3623
ADP3623/ADP3624/ADP3625/ADP3633/ADP3634/ADP3635
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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 Circuit ...................................................................................... 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, 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
5/09—Revision 0: Initial Version
Rev. A | Page 2 of 16







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