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PDF ADP3635 Data sheet ( Hoja de datos )
| Número de pieza | ADP3635 | |
| Descripción | (ADP3623 - ADP3635) 4A MOSFET Driver | |
| Fabricantes | Analog Devices | |
| Logotipo |  |
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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
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevices for itsuse,nor foranyinfringementsofpatentsor 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.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
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.
1 page  
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ADP3623/ADP3624/ADP3625/ADP3633/ADP3634/ADP3635
TSD
TSD – THYS_SD
TW
TJ
NORMAL OPERATION
OT WARNING
OUTPUTS
ENABLED
OT SHUTDOWN
OUTPUTS
DISABLED
OT WARNING
OUTPUTS
ENABLED
TW – THYS_W
NORMAL OPERATION
OTW
Figure 6. Overtemperature Warning and Shutdown
Rev. A | Page 5 of 16
5 Page 
www.DataSheet4U.com
TEST CIRCUIT
ADP3623/ADP3624/ADP3625/ADP3633/ADP3634/ADP3635
ADP3623/ADP3624/ADP3625
ADP3633/ADP3634/ADP3635
1 SD
NONINVERTING
INA,
INA
2
A
OTW 8
OUTA
7
SCOPE
PROBE
INVERTING
3 PGND
NONINVERTING
INB,
4 INB
B
INVERTING
VDD
VDD 6
4.7µF
CERAMIC
100nF
CERAMIC
OUTB 5
CLOAD
Figure 20. Test Circuit
Rev. A | Page 11 of 16
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet ADP3635.PDF ] | |
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