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Datasheet ADP3623, ADP3624, ADP3625, ADP3633, ADP3634, ADP3635 (Analog Devices)

ПроизводительAnalog Devices
ОписаниеHigh Speed, Dual, 4 A MOSFET Driver with Thermal Protection
Страниц / Страница16 / 1 — High Speed, Dual, 4 A MOSFET Driver. with Thermal Protection. …
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Язык документаанглийский

High Speed, Dual, 4 A MOSFET Driver. with Thermal Protection. ADP3623/ADP3624/ADP3625/ADP3633/ADP3634/ADP3635. FEATURES

Datasheet ADP3623, ADP3624, ADP3625, ADP3633, ADP3634, ADP3635 Analog Devices

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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
The ADP362x/ADP363x is a family of high current and dual high
High current drive capability
speed drivers, capable of driving two independent N-channel
Precise threshold shutdown comparator
power MOSFETs. The family uses the industry-standard foot-
UVLO with hysteresis
print but adds high speed switching performance and improved
Overtemperature warning signal
system reliability.
Overtemperature shutdown
The family has an internal temperature sensor and provides
3.3 V-compatible inputs
two levels of overtemperature protection, an overtemperature
10 ns typical rise time and fall time @ 2.2 nF load
warning, and an overtemperature shutdown at extreme junction
Matched propagation delays between channels
temperatures.
Fast propagation delay 9.5 V to 18 V supply voltage (ADP3633/ADP3634/ADP3635)
The SD function, generated from a precise internal comparator,
4.5 V to 18 V supply voltage (ADP3623/ADP3624/ADP3625)
provides fast system enable or shutdown. This feature allows
Parallelable dual outputs
redundant overvoltage protection, complementing the protec-
Rated from −40°C to +85°C ambient temperature
tion inside the main control er device, or provides safe system
Thermally enhanced packages, 8-lead SOIC_N_EP and
shutdown in the event of an overtemperature warning.
8-lead MINI_SO_EP
The wide input voltage range al ows the driver to be compatible
APPLICATIONS
with both analog and digital PWM controllers.
AC-to-dc switch mode power supplies
Digital power controllers are supplied from a low voltage
DC-to-dc power supplies
supply, and the driver is supplied from a higher voltage supply.
Synchronous rectification
The ADP362x/ADP363x family adds UVLO and hysteresis
Motor drives
functions, allowing safe startup and shutdown of the higher voltage supply when used with low voltage digital controllers. The device family is available in thermal y 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 ADP3623/ADP3624/ADP3625 ADP3633/ADP3634/ADP3635 8 SD 1 OTW OVERTEMPERATURE PROTECTION V V EN DD NONINVERTING INA, 2 7 OUTA INA INVERTING PGND 3 UVLO 6 VDD NONINVERTING 4 INB, 5 OUTB INB INVERTING
101 08132- Figure 1.
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 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Tel: 781.329.4700 www.analog.com Trademarks and registered trademarks are the property of their respective owners. Fax: 781.461.3113 ©2009 Analog Devices, Inc. All rights reserved.
Document Outline Features Applications General Description Functional Block Diagram Revision History Specifications Timing Diagrams Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Test Circuit Theory of Operation Input Drive Requirements (INA, AA, INB, AA, and SD) Low-Side Drivers (OUTA, OUTB) Shutdown (SD) Function Overtemperature Protections Supply Capacitor Selection PCB Layout Considerations Parallel Operation Thermal Considerations Design Example Outline Dimensions Ordering Guide
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