sgm809-zxn3l sg-micro, sgm809-zxn3l Datasheet

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sgm809-zxn3l

Manufacturer Part Number
sgm809-zxn3l
Description
Microprocessor Supervisory Circuit In 3-pin Sot23
Manufacturer
sg-micro
Datasheet

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sgm809-zxn3l/TR
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20 000
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 V
V. The SGM803/SGM809 provides an active low reset signal
( RESET ) while the SGM810 provides an active high 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.
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 17µA makes the
SGM803/SGM809/SGM810 ideal for use in portable, battery
operated equipment. All are specified over the extended –40°C
to +125°C temperature range.
APPLICATIONS
Microprocessor Systems
Controllers
Intelligent Instruments
Automotive Systems
Safety Systems
Portable Instruments
TYPICAL OPERATION CIRCUIT
SGM803
SGM809
SGM810
SGM803/SGM809
GND
SG Micro Limited
www.sg-micro.com
V
CC
RESET
SGM803 only
R
PULL-UP
MICROPROCESSOR
RESET
CC
SYSTEM
.
GND
V
CC
CC
as low as 1
Microprocessor Supervisory
FEATURES
− Precision Voltage Monitor: 2.5V, 3V, 3.3V, 5V
− Superior Upgrade for MAX803/MAX809/MAX810
− Fully Specified over Temperature
− Low Power Consumption (17µA TYP)
− Reset Assertion Down to 1V V
− 160ms Min Power-On Reset
− Small Packaging
PIN CONFIGURATIONS
and ADM803/ADM809/ADM810
Options
40
°C
Open-Drain RESET Output (SGM803)
Push-Pull
Push-Pull RESET Output (SGM810)
SGM803 Available in SOT23-3
SGM809 Available in SOT23-3 and SOT-23
SGM810 Available in SOT23-3
to +125
Circuit in 3-Pin SOT23
°C
RESET
Operating Temperature Range
Output (SGM809)
CC
(TOP VIEW)
REV. C

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sgm809-zxn3l Summary of contents

Page 1

... This holds the microprocessor in a reset state until conditions have stabilized. The RESET output remains operational with V V. The SGM803/SGM809 provides an active low reset signal ( RESET ) while the SGM810 provides an active high 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 ...

Page 2

... SOT-23 SGM809-MXN3L SOT23-3 SGM809-JXN3 SOT-23 SGM809-JXN3L SOT23-3 SGM809-TXN3 SOT-23 SGM809-TXN3L SOT23-3 SGM809-SXN3 SOT-23 SGM809-SXN3L SOT23-3 SGM809-RXN3 SOT-23 SGM809-RXN3L SOT23-3 SGM809-ZXN3 SOT-23 SGM809-ZXN3L SOT23-3 SGM810-LXN3 SOT23-3 SGM810-MXN3 SOT23-3 SGM810-JXN3 SOT23-3 SGM810-TXN3 SOT23-3 SGM810-SXN3 SOT23-3 SGM810-RXN3 SOT23-3 SGM810-ZXN3 2 PACKAGE PACKAGE MARKING OPTION 803L ...

Page 3

... Exposure to absolute maximum rating conditions for extended periods may affect device reliability. PIN DESCRIPTION Pin Number NAME SGM803 SGM809 GND 1 1 RESET 2 2 — ...

Page 4

... Reset Active Timeout Period RESET/ RESET OUTPUT VOLTAGE 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 changes without notice. CONDITIONS T = 0° ...

Page 5

... SGM8_L/M/J 200 V = 10mV OD 150 V = 20mV OD 100 V = 100mV -50 -30 - Temperature(℃) Power-Up RESET Delay vs.Temperature 264 SGM809S 262 260 258 256 254 252 250 248 -50 -30 - Temperature(℃) Normalized RESET Voltage Threshold vs. Temperature 1.008 1.006 1.004 1.002 1 0.998 ...

Page 6

... TYPICAL PERFORMANCE CHARACTERISTICS RESET Output Voltage vs. Supply Voltage Supply Voltage 5V P-P 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 accurate internal voltage reference circuit. These benefits combine to produce an exceptionally reliable voltage monitor circuit ...

Page 8

PACKAGE OUTLINE DIMENSIONS SOT23-3 Dimensions In Millimeters Symbol Min Max A 1.050 1.250 A1 0.000 0.100 A2 1.050 1.150 b 0.300 0.400 c 0.100 0.200 D 2.820 3.020 E 1.500 1.700 E1 2.650 2.950 e 0.950TYP e1 1.800 2.000 L ...

Page 9

PACKAGE OUTLINE DIMENSIONS SOT- θ Symbol 0. θ 9 Dimensions Dimensions In Millimeters In Inches Min Max Min Max 0.900 1.150 0.035 ...

Page 10

... Data Sheet changed from REV REV Added SGM803J . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2, 4 08/2008— Data Sheet changed from REV REV. C Added SGM809’s SOT-23 Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SGMICRO SGMICRO is dedicated to provide high quality and high performance analog IC products to customers. All SGMICRO products meet the highest industry standards with strict and comprehensive test and quality control systems to achieve world-class consistency and reliability ...

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