SIP825 datasheet(1/6 Pages) VISHAY

部件名	SIP825

功能描述	5-Pin UP Reset Circuits with Watchdog Timer and Manual Reset

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制造商	VISHAY [Vishay Siliconix]

网页	http://www.vishay.com

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SiP823/SiP824/SiP825

Vishay Siliconix

Document Number: 72397

S-41150—Rev. B, 14-Jun-04

www.vishay.com

1

5-Pin

mP Reset Circuits with Watchdog Timer and Manual Reset

FEATURES

APPLICATIONS

D Precision Power Supply Monitoring with "1.5% Accuracy

D Low Quiescent Current: 3 mA max.

D Low Threshold Voltage Temperature Coefficient: 100 ppm max.

D Guaranteed RESET Valid Dow to VCC = 1 V

D Seven Reset Threshold Options

D Small SOT23-5 Packages

D No External Components

D Power Supply Transient Immunity

D Portable Intelligent Electronics

D Computers and Controllers

D Automotive Electronics

D Critical

mP/mC Power Supply Monitoring

DESCRIPTION

The

SiP823/SiP824/SiP825

series

are

mProcessor

supervisory circuits in a 5-pin SOT23 package, that combine

the functions of power supply and mProcessor monitoring.

If the power supply voltage drops, or has been, below a safe

level or the mProcessor 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 VCC 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

VCC

See page 2 for ordering and marking information.

GND

2

4

WDI

RESET

MR

Top View

3

5

SOT-23

1

VCC

GND

2

4

WDI

RESET

Top View

3

5

SOT-23

1

VCC

GND

2

4

MR

RESET

SiP823

SiP824

SiP825

TYPICAL APPLICATION CIRCUIT

GND

VCC

SiP823

mProcessor

VCC

I/O

RESET

WDI

MANUAL

RESET

MR

类似零件编号 - SIP825

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