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ADM709SAR

更新时间： 2024-11-29 22:50:07
品牌 Logo 应用领域
亚德诺 - ADI 监控
页数 文件大小 规格书
4页 227K
描述
Power Supply Monitor with Reset

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中文翻译

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ADM709SAR 数据手册

 浏览型号ADM709SAR的Datasheet PDF文件第2页浏览型号ADM709SAR的Datasheet PDF文件第3页浏览型号ADM709SAR的Datasheet PDF文件第4页 
Power Supply Monitor  
with Reset  
a
ADM709  
FEATURES  
FUNCTIONAL BLOCK DIAGRAM  
Precision Supply Voltage Monitor  
+5 V, +3.3 V, +3 V Power Supply Monitor  
35 ␮A Quiescent Current  
140 ms (min) Power-On Reset Pulse  
Low Cost  
ADM709  
V
CC  
RESET  
RESET  
GENERATOR  
V
TH  
8-Pin DIP/SO Packages  
Upgrade for MAX709  
GND  
APPLICATIONS  
Microprocessor Systems  
Computers  
Controllers  
V
V
CC  
CC  
Intelligent Instruments  
Critical ␮P Monitoring  
Automotive Systems  
Critical ␮P Power Monitoring  
ADM709  
µP  
RESET  
RESET  
GND  
GND  
GENERAL DESCRIPTION  
Typical Operating Circuit  
The ADM709 contains a power supply monitor which generates  
a system reset during power-up, power-down and brownout  
conditions. When VCC falls below the reset threshold, RESET  
goes low and holds the µP in reset. On power-up the RESET  
output is held low for 140 ms after VCC rises above the thresh-  
old. The RESET output remains operational with VCC as low  
as 1 V.  
ORDERING GUIDE  
Reset  
Threshold  
Temperature  
Range  
Package  
Option*  
Model  
ADM709LAN  
ADM709LAR  
ADM709MAN  
ADM709MAR  
ADM709TAN  
ADM709TAR  
ADM709SAN  
ADM709SAR  
ADM709RAN  
ADM709RAR  
4.65 V  
4.65 V  
4.40 V  
4.40 V  
3.08 V  
3.08 V  
2.93 V  
2.93 V  
2.63 V  
2.63 V  
–40°C to +85°C N-8  
–40°C to +85°C SO-8  
–40°C to +85°C N-8  
–40°C to +85°C SO-8  
–40°C to +85°C N-8  
–40°C to +85°C SO-8  
–40°C to +85°C N-8  
–40°C to +85°C SO-8  
–40°C to +85°C N-8  
–40°C to +85°C SO-8  
Three supply-voltage threshold levels are available suitable for  
+5 V, +3.3 V and for +3 V supply monitoring. The actual reset  
voltage threshold is given below.  
The ADM709 is available in 8-pin DIP and SOIC packages.  
Table I. Reset Threshold  
Suffix  
Voltage (V)  
L
4.65  
4.40  
3.08  
2.93  
2.63  
*N = Plastic DIP; SO = SOIC.  
M
T
S
R
REV. 0  
© Analog Devices, Inc., 1995  
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  
which may result from its use. No license is granted by implication or  
otherwise under any patent or patent rights of Analog Devices.  
One Technology Way, P.O. Box 9106, Norwood. MA 02062-9106, U.S.A.  
Tel: 617/329-4700 Fax: 617/326-8703  
1234

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