SGM810 Shengbang Microelectronics, SGM810 Datasheet

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SGM810

Manufacturer Part Number
SGM810
Description
(SGM803 - SGM810) Microprocessor Supervisory Circuit
Manufacturer
Shengbang Microelectronics
Datasheet

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GENERAL DESCRIPTION
The
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 V
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 V
The low supply current of typically 17
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
SGM803
SGM809
SGM810
SGM803/SGM809/SGM810
SGM803/SGM809
Shengbang Microelectronics Co, Ltd
Tel: 86/451/84348461
www.sg-micro.com
GND
V
CC
RESET
CC
as low as 1 V. The SGM803/SGM809
SGM803 only
R
PULL-UP
MICROPROCESSOR
RESET
supervisory
SYSTEM
CC
GND
.
µ
V
A makes the
CC
circuits
Microprocessor Supervisory
FEATURES
− Precision Voltage Monitor: 2.5V,3 V, 3.3 V, 5 V
− Superior Upgrade for MAX803/MAX809/MAX810
− Fully Specified over Temperature
− Low Power Consumption (17μA Typ)
− Reset Assertion Down to 1 V V
− 160 ms Min Power-On Reset
− Compact 3-Pin SOT23 Package
PIN CONFIGURATIONS(TOP VIEW)
Options
and SGM803/SGM809/SGM810
Open-Drain RESET Output(SGM803)
Push-Pull
Push-Pull RESET Output (SGM810)
RESET/RESET
RESET
Circuit in 3-Pin SOT23
GND
GND
RESET
1
2
1
2
SOT23-3(L-Type)
SGM803
SGM809
SGM810
SGM809-
SOT23-3
Output (SGM809)
ZXN3L
(only)
CC
3
3
V
V
CC
CC
REV. B

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SGM810 Summary of contents

Page 1

... V as low The SGM803/SGM809 CC 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 ...

Page 2

... SGM809-ZXN3L - 40°C to +125°C SGM810-LXN3 - 40°C to +125°C SGM810-MXN3 - 40°C to +125°C SGM810-JXN3 - 40°C to +125°C SGM810-TXN3 - 40°C to +125°C SGM810-SXN3 - 40°C to +125°C SGM810-RXN3 - 40°C to +125°C SGM810-ZXN3 2 PACKAGE PACKAGE MARKING OPTION Tape and Reel, 3000 ...

Page 3

... V CC Storage Temperature.............................................- 65°C to +150°C Lead Temperature (soldering, 10s).....................................+260°C ESD Susceptibility HBM..........................................................................................4000V MM..............................................................................................400V Pin Number SGM809- SGM810 ZXN3L 2 1 Ground Active Low reset. RESET remains low while V — threshold, and remains low for 240 ms (typ) after V 1 reset threshold. ...

Page 4

... Low (SGM803R/S/T/Z) Low (SGM809R/S/T/Z) Low (SGM803L/M/J) Low (SGM809L/M/J) Low (SGM803R/S/T/L/M/J/Z) Low (SGM809R/S/T/L/M/J/Z) High (SGM809R/S/T/Z) High (SGM809L/M/J) Low (SGM810R/S/T/Z) Low (SGM810L/M/J) High (SGM810 R/S/T/L/M/J) RESET Open-Drain Output Leakage Current (SGM803) Specifications subject to change without notice. CONDITIONS T = 0°C to 70° 40°C to +125°C ...

Page 5

TYPICAL PERFORMANCE CHARACTERISTICS Power-Down RESET Delay vs.Temperature 250 SGM8_L/M/J 200 150 www.DataSheet4U.com 100 -50 -30 -10 10 Temperature(℃) Power-Up RESET Delay vs.Temperature 264 SGM809S 262 260 258 256 254 252 250 248 -50 -30 -10 10 Temperature(℃) ...

Page 6

TYPICAL PERFORMANCE CHARACTERISTICS RESET Output Voltage vs. Supply Voltage Supply Voltage 5V P-P www.DataSheet4U.com SGM809R SGM809S 200ms/div RESET Output Voltage 6 SGM803/809/810 ...

Page 7

... SGM803/ SGM809/SGM810 series can operate effectively even when there are large degradations of the supply voltages. Another advantage of the SGM803/ SGM809/SGM810 series is its very www.DataSheet4U.com accurate internal voltage reference circuit. These benefits combine to produce an exceptionally reliable voltage monitor circuit ...

Page 8

PACKAGE OUTLINE DIMENSIONS SOT23 www.DataSheet4U.com e e1 θ Dimensions 0.20 0 Symbol In Millimeters Min A 1.050 A1 0.000 A2 1.050 b 0.300 c 0.100 D 2.820 E 1.500 C E1 2.650 e 0.950TYP e1 1.800 L 0.700REF ...

Page 9

... REVISION HISTORY Location 11/06— Data Sheet changed from REV REV. B Changes to ABSOLUTE MAXIMUM RATINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 www.DataSheet4U.com Shengbang Microelectronics Co, Ltd Unit 3, ChuangYe Plaza No.5, TaiHu Northern Street, YingBin Road Centralized Industrial Park Harbin Development Zone Harbin, HeiLongJiang 150078 P.R. China Tel.: 86-451-84348461 Fax: 86-451-84308461 www ...

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