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ADM810RAKS-REEL-7 PDF预览

ADM810RAKS-REEL-7

更新时间: 2024-11-29 20:51:15
品牌 Logo 应用领域
亚德诺 - ADI 光电二极管
页数 文件大小 规格书
8页 133K
描述
IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO3, SC-70, 3 PIN, Power Management Circuit

ADM810RAKS-REEL-7 数据手册

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Microprocessor Supervisory Circuit  
in 3-Lead SC70 and SOT-23  
ADM809/ADM810  
FUNCTIONAL BLOCK DIAGRAM  
FEATURES  
Superior Upgrade for MAX809/MAX810  
Specified over Temperature  
Low Power Consumption (17 A)  
Precision Voltage Monitor: 2.5 V, 3 V, 3.3 V, 5 V Options  
Reset Assertion Down to 1 V VCC  
140 ms Min Power-On Reset  
ADM809/ADM810  
V
CC  
RESET  
RESET  
(RESET)  
GENERATOR  
V
240ms  
REF  
Logic Low RESET Output (ADM809)  
Logic High RESET Output (ADM810)  
SC70 and SOT-23 Packages  
GND  
APPLICATIONS  
Microprocessor Systems  
Computers  
Controllers  
Intelligent Instruments  
Automotive Systems  
V
GENERAL DESCRIPTION  
CC  
The ADM809/ADM810 supervisory circuits monitor the power  
supply voltage in microprocessor systems. They provide a reset  
output during power-up, power-down, and brownout conditions.  
On power-up, an internal timer holds reset asserted for 240 ms.  
This holds the microprocessor in a reset state until conditions  
have stabilized. The RESET output remains operational with  
VCC as low as 1 V. The ADM809 provides an active low reset  
signal (RESET), while the ADM810 provides an active high  
signal (RESET) output.  
V
V
CC  
CC  
ADM809  
RESET  
INPUT  
P  
SYSTEM  
RESET  
GND  
GND  
Figure 1. Typical Operating Circuit  
Seven reset threshold voltage options are available, suitable for  
monitoring a variety of supply voltages. Refer to Table I.  
The reset comparator features built-in glitch immunity, making  
it immune to fast transients on VCC  
.
The ADM809/ADM810 consumes only 17 µA, making it suitable  
for low power portable equipment. It is packaged in 3-lead SC70  
and SOT-23 packages.  
REV. B  
Information furnished by Analog Devices is believed to be accurate and  
reliable. However, no responsibility is assumed by Analog Devices for its  
use, norforanyinfringementsofpatentsorotherrightsofthirdpartiesthat  
may result from its use. No license is granted by implication or otherwise  
under any patent or patent rights of Analog Devices. Trademarks and  
registered trademarks are the property of their respective companies.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781/329-4700  
Fax: 781/326-8703  
www.analog.com  
© 2003 Analog Devices, Inc. All rights reserved.  

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