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SIP825MEUDT-TR1 Datasheet(PDF) 1 Page - Vishay Siliconix

Part # SIP825MEUDT-TR1
Description  5-Pin UP Reset Circuits with Watchdog Timer and Manual Reset
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Manufacturer  VISHAY [Vishay Siliconix]
Direct Link  http://www.vishay.com
Logo VISHAY - Vishay Siliconix

SIP825MEUDT-TR1 Datasheet(HTML) 1 Page - Vishay Siliconix

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SiP823/SiP824/SiP825
Vishay Siliconix
Document Number: 72397
S-41150—Rev. B, 14-Jun-04
www.vishay.com
1
5-Pin
mP Reset Circuits with Watchdog Timer and Manual Reset
FEATURES
APPLICATIONS
D Precision Power Supply Monitoring with "1.5% Accuracy
D Low Quiescent Current: 3 mA max.
D Low Threshold Voltage Temperature Coefficient: 100 ppm max.
D Guaranteed RESET Valid Dow to VCC = 1 V
D Seven Reset Threshold Options
D Small SOT23-5 Packages
D No External Components
D Power Supply Transient Immunity
D Portable Intelligent Electronics
D Computers and Controllers
D Automotive Electronics
D Critical
mP/mC Power Supply Monitoring
DESCRIPTION
The
SiP823/SiP824/SiP825
series
are
mProcessor
supervisory circuits in a 5-pin SOT23 package, that combine
the functions of power supply and mProcessor monitoring.
If the power supply voltage drops, or has been, below a safe
level or the mProcessor shows signs of problematic inactivity,
the circuit will generate a reset signal at it’s output.
The SiP823 and SiP825 have an input to accommodate
manual reset.
Seven pre-programmed reset threshold voltage levels are
available as standard options.
Specially configured options are available upon request,
allowing for further customization of reset voltage, reset
time-out, and watchdog time-out periods.
The SiP823 has a reset output that is “active low” and the
SiP824 and SiP825 have complementary outputs for both
“active high” and “active low” resets. Both output drives are
push/pull configurations.
Space saving SOT23-5 packages and low quiescent current
make this family of products ideally suited for portable battery
operated equipment.
These circuits fully ignore fast negative VCC transients and
have valid reset output signals with power supply levels down
to 1 V.
PACKAGING AND PIN DEFINITION
Top View
3
5
SOT-23
1
VCC
See page 2 for ordering and marking information.
GND
2
4
WDI
RESET
MR
Top View
3
5
SOT-23
1
VCC
GND
2
4
WDI
RESET
Top View
3
5
SOT-23
1
VCC
GND
2
4
MR
RESET
RESET
RESET
SiP823
SiP824
SiP825
TYPICAL APPLICATION CIRCUIT
GND
GND
VCC
VCC
SiP823
mProcessor
VCC
I/O
RESET
RESET
WDI
MANUAL
RESET
MR


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