SGM809-RXN3 datasheet(1/9 Pages) SGMICRO

部件名	SGM809-RXN3

功能描述	Microprocessor Supervisory Circuit in 3-Pin SOT23

PDF	9 Pages

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制造商	SGMICRO [SG Micro Corp]

网页	http://www.sg-micro.com

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1 / 9 page

SGM803

SGM809

SGM810

GENERAL DESCRIPTION

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 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 SGM803/SGM809

provides an active low reset signal (

RESET ) while the

SGM810 provides an active high signal (RESET) output.

The SGM809/SGM810 have push-pull outputs, whereas the

SGM803 has an open-drain output, which requires an

external pull-up resistor.

Seven reset threshold voltage options are available suitable

for monitoring 2.5V, 3V, 3.3V, and 5V supply voltages.

The reset comparator features built-in glitch immunity,

making it immune to fast transients on VCC.

The low supply current of typically 17

µA makes the

SGM803/SGM809/SGM810 ideal for use in portable, battery

operated equipment. They are available in the 3-pin SOT23

package.

APPLICATIONS

Microprocessor Systems

Controllers

Intelligent Instruments

Automotive Systems

Safety Systems

Portable Instruments

TYPICAL OPERATION CIRCUIT

MICROPROCESSOR

SYSTEM

SGM803/SGM809

GND

RESET

GND

VCC

RPULL-UP

SGM803 only

Microprocessor Supervisory

Circuit in 3-Pin SOT23

FEATURES

− Precision Voltage Monitor: 2.5V,3 V, 3.3 V, 5 V

Options

− Superior Upgrade for MAX803/MAX809/MAX810

and SGM803/SGM809/SGM810

− Fully Specified over Temperature

− Low Power Consumption (17μA Typ)

− Reset Assertion Down to 1 V VCC

− 160 ms Min Power-On Reset

Open-Drain RESET Output(SGM803)

Push-Pull RESET Output (SGM809)

Push-Pull RESET Output (SGM810)

− Compact 3-Pin SOT23 Package

PIN CONFIGURATIONS（TOP VIEW）

SGM803

SGM809

SGM810

1

2

3

SOT23-3

GND

VCC

RESET/RESET

SGM809-

ZXN3L

(only)

1

2

3

SOT23-3(L-Type)

GND

VCC

RESET

REV. B

Shengbang Microelectronics Co, Ltd

Tel: 86/451/84348461

www.sg-micro.com

类似零件编号 - SGM809-RXN3

制造商	部件名	数据表	功能描述
SG Micro Corp	SGM809-RXN3/TR	1Mb / 13P	Microprocessor Supervisory Circuit in 3-Pin SOT-23
SG Micro Corp	SGM809-RXN3L/TR	1Mb / 13P	Microprocessor Supervisory Circuit in 3-Pin SOT-23

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