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參數(shù)資料
| 型號(hào)： | SIP825 |
| 廠商： | Vishay Intertechnology,Inc. |
| 英文描述： | 5-Pin UP Reset Circuits with Watchdog Timer and Manual Reset |
| 中文描述： | 5引腳復(fù)位和看門狗定時(shí)器和手動(dòng)復(fù)位電路 |
| 文件頁數(shù)： | 1/6頁 |
| 文件大?。?/td> | 55K |
| 代理商： | SIP825 |
SiP823/SiP824/SiP825
Vishay Siliconix
Document Number: 72397
S-41150—Rev. B, 14-Jun-04
www.vishay.com
1
5-Pin P Reset Circuits with Watchdog Timer and Manual Reset
FEATURES
Precision Power Supply Monitoring with
Low Quiescent Current: 3
A max.
Low Threshold Voltage Temperature Coefficient: 100 ppm max.
Guaranteed RESET Valid Dow to V
CC
= 1 V
Seven Reset Threshold Options
Small SOT23-5 Packages
No External Components
Power Supply Transient Immunity
APPLICATIONS
Portable Intelligent Electronics
Computers and Controllers
Automotive Electronics
Critical P/ C Power Supply Monitoring
1.5% Accuracy
DESCRIPTION
The
supervisory circuits in a 5-pin SOT23 package, that combine
the functions of power supply and Processor monitoring.
SiP823/SiP824/SiP825
series
are
Processor
If the power supply voltage drops, or has been, below a safe
level or the Processor 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 V
CC
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
V
CC
See page 2 for ordering and marking information.
GND
2
4
WDI
RESET
MR
Top View
3
5
SOT-23
1
V
CC
GND
2
4
WDI
RESET
Top View
3
5
SOT-23
1
V
CC
GND
2
4
MR
RESET
RESET
RESET
SiP823
SiP824
SiP825
TYPICAL APPLICATION CIRCUIT
GND
GND
V
CC
V
CC
SiP823
Processor
V
CC
I/O
RESET
RESET
WDI
MANUAL
RESET
MR
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