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SGM809-SXN3/TR PDF预览

SGM809-SXN3/TR

更新时间： 2024-11-26 00:38:15
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圣邦微 - SGMICRO /
页数 文件大小 规格书
13页 1035K
描述
Microprocessor Supervisory Circuit in 3-Pin SOT-23

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SGM809-SXN3/TR 数据手册

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SGM803/SGM809/SGM810  
Microprocessor Supervisory  
Circuit in 3-Pin SOT-23  
GENERAL DESCRIPTION  
FEATURES  
The SGM803/SGM809/SGM810 supervisory circuits  
monitor the power supply voltage in microprocessor  
and digital systems. They provide a reset output during  
power-up, power-down and brownout conditions. On  
power-up, an internal timer holds reset asserted for  
240ms. This holds the microprocessor in a reset state  
● Precision Voltage Monitor: 1.8V, 2.5V, 3V, 3.3V,  
5V Options  
● Superior Upgrade for MAX803/MAX809/MAX810  
and ADM803/ADM809/ADM810  
● Fully Specified over Temperature  
● Low Power Consumption: 13μA (TYP)  
● Reset Assertion Down to 1V VCC  
● 150ms Power-On Reset (MIN)  
until conditions have stabilized. The  
output  
RESET  
remains operational with VCC as low as 1V. The  
SGM803/ SGM809 provides an active low reset signal  
Open-Drain  
Output (SGM803)  
RESET  
(
) while the SGM810 provides an active high  
Push-Pull  
RESET  
Output (SGM809)  
RESET  
signal (RESET) output. The SGM809/SGM810 has  
push-pull outputs, whereas the SGM803 has an  
open-drain output, which requires an external pull-up  
resistor.  
Push-Pull RESET Output (SGM810)  
● -40℃ to +125℃ Operating Temperature Range  
● Small Packaging  
SGM803 Available in SOT-23-3 and SOT-23  
SGM809 Available in SOT-23-3 and SOT-23  
SGM810 Available in SOT-23-3 and SOT-23  
Eight reset threshold voltage options are available  
suitable for monitoring 1.8V, 2.5V, 3V, 3.3V and 5V  
supply voltages.  
APPLICATIONS  
The reset comparator features built-in glitch immunity,  
making it immune to fast transients on VCC.  
Microprocessor Systems  
Controllers  
The low supply current of typically 13μA makes the  
SGM803/SGM809/SGM810 ideal for use in portable,  
battery operated equipment. All are specified over the  
extended -40℃ to +125℃ temperature range.  
Intelligent Instruments  
Automotive Systems  
Safety Systems  
Portable Instruments  
TYPICAL APPLICATION  
VCC  
VCC  
RPULL-UP  
SGM803  
only  
MICROPROCESSOR  
SYSTEM  
SGM803/SGM809  
RESET  
GND  
RESET  
GND  
SG Micro Corp  
JANUARY 2018 – REV. E. 3  
www.sg-micro.com  
1234567...13

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