MOSFET Driver. ADP3624 Datasheet

ADP3624 Driver. Datasheet pdf. Equivalent

Part ADP3624
Description (ADP3624 / ADP3634) 4A MOSFET Driver
Feature www.DataSheet4U.com High Speed, Dual, 4 A MOSFET Driver with Thermal Protection ADP3624/ADP3634 GEN.
Manufacture Analog Devices
Datasheet
Download ADP3624 Datasheet



ADP3624
www.DataSheet4U.com
High Speed, Dual, 4 A MOSFET Driver
with Thermal Protection
ADP3624/ADP3634
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 (ADP3634)
4.5 V to 18 V supply voltage (ADP3624)
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 ADP3624/ADP3634 are high current drive, dual high
speed drivers, capable of driving two independent N-channel
power MOSFETs. The part uses the industry-standard footprint
but adds high speed switching performance and improved
system reliability.
The part 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
protection inside the main controller device, or provides safe
system shutdown in the event of an overtemperature warning.
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 ADP3624/ADP3634 add 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 ADP3624/ADP3634
SD 1
INA 2
VEN
NONINVERTING
OVERTEMPERATURE
PROTECTION
VDD
8 OTW
7 OUTA
PGND 3
INB 4
INVERTING
NONINVERTING
UVLO
6 VDD
5 OUTB
INVERTING
Figure 1.
Rev. 0
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Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2009 Analog Devices, Inc. All rights reserved.



ADP3624
ADP3624/ADP3634
www.DataSheet4U.com
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Timing Characteristics ................................................................ 4
Absolute Maximum Ratings............................................................ 5
ESD Caution.................................................................................. 5
Pin Configuration and Function Descriptions............................. 6
Typical Performance Characteristics ............................................. 7
Test Circuit ........................................................................................ 9
Theory of Operation ...................................................................... 10
Input Drive Requirements (INA, INB, SD) ............................ 10
Low-Side Drivers (OUTA, OUTB) .......................................... 10
Shutdown (SD) Function .......................................................... 10
Overtemperature Protections ................................................... 10
Supply Capacitor Selection ....................................................... 11
PCB Layout Considerations...................................................... 11
Parallel Operation ...................................................................... 11
Thermal Considerations............................................................ 12
Outline Dimensions ....................................................................... 13
Ordering Guide .......................................................................... 13
REVISION HISTORY
5/09—Revision 0: Initial Version
Rev. 0 | Page 2 of 16





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