Datasheet > SGM811B

SGM811B

更新时间： 2024-09-24 11:08:11

品牌	Logo	应用领域
圣邦微 - SGMICRO		/
页数	文件大小	规格书
10页	692K
描述
Microprocessor Supervisory Circuit with Manual Reset Input

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SGM811B 数据手册

SGM811B/SGM812B

Microprocessor Supervisory Circuits

with Manual Reset Input

GENERAL DESCRIPTION

FEATURES

The SGM811B and SGM812B are integrated

microprocessor supervisory devices which can be reset

under power-up, power-down or even voltage reduction

brownout conditions. When V_CCis as low as 1V, the

reset output can still operate. On the power-on state,

the internal timer maintains a 200ms reset assertion,

which keeps the microprocessor in the reset state until

the condition is stable.

● Superior Upgrade for MAX811/MAX812 and

ADM811/ADM812

● High Accuracy Fixed Detection Options: 3V and

3.3V

● Low Supply Current: < 1μA (TYP)

● 200ms (TYP) Power-on Reset Pulse Width

● Reset Output Options:

 Active-Low nRESET Output: SGM811B

 Active-High RESET Output: SGM812B

● Manual Reset Input

The SGM811B has an active-low nRESET output,

while the SGM812B has an active-high RESET output.

These devices provide three reset threshold voltage

options for 3V and 3.3V voltage monitoring.

● Reset Valid Down to V_CC= 1V

● -40℃ to +125℃ Operating Temperature Range

● Available in a Green SOT-143 Package

The devices also provide a manual reset (nMR)

function. It can reduce damage if the device loses its

control or is locked.

APPLICATIONS

The SGM811B and SGM812B are available in a Green

SOT-143 package. They operates over a junction

temperature range of -40℃ to +125℃.

Computers

Battery-Powered Applications

Portable Equipment

Automotive Equipment

Safety Systems

Intelligent Instruments

Critical μP Power Monitoring

TYPICAL APPLICATION

V_CC

SGM811B/

SGM812B

Microprocessor

nRESET/

nMR

nRESET/

RESET

GND

RESET

Switch

GND

100kΩ

SG Micro Corp

JUNE2022–REV. A.3

www.sg-micro.com

12 3 4 5 6 7...10

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