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PDF SGM810 Data sheet ( Hoja de datos )
| Número de pieza | SGM810 | |
| Descripción | (SGM803 - SGM810) Microprocessor Supervisory Circuit | |
| Fabricantes | Shengbang Microelectronics | |
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Hay una vista previa y un enlace de descarga de SGM810 (archivo pdf) en la parte inferior de esta página. Total 13 Páginas | ||
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SGM803/SGM809/SGM810
Microprocessor Supervisory
Circuit in 3-Pin SOT-23
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
240ms. This holds the microprocessor in a reset state
until conditions have stabilized. The RESET output
remains operational with VCC as low as 1V. 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.
Eight reset threshold voltage options are available
suitable for monitoring 1.8V, 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 13μA makes the
SGM803/SGM809/SGM810 ideal for use in portable,
battery operated equipment. All are specified over the
extended -40℃ to +125℃ temperature range.
FEATURES
● Precision Voltage Monitor: 1.8V, 2.5V, 3V, 3.3V, 5V
Options
● Superior Upgrade for MAX803/MAX809/MAX810
and ADM803/ADM809/ADM810
● Fully Specified over Temperature
● Low Power Consumption (13μA TYP)
● Reset Assertion Down to 1V VCC
● 150ms Min Power-On Reset
Open-Drain RESET Output (SGM803)
Push-Pull RESET Output (SGM809)
Push-Pull RESET Output (SGM810)
● -40℃ to +125℃ Operating Temperature Range
● Small Packaging
SGM803 Available in SOT-23-3 and SOT-23
SGM809 Available in SOT-23-3 and SOT-23
SGM810 Available in SOT-23-3 and SOT-23
APPLICATIONS
Microprocessor Systems
Controllers
Intelligent Instruments
Automotive Systems
Safety Systems
Portable Instruments
TYPICAL OPERATION CIRCUIT
VCC
SGM803/SGM809
RESET
GND
RPULL-UP
SGM803
only
VCC
MICROPROCESSOR
SYSTEM
RESET
GND
PIN CONFIGURATIONS (TOP VIEW)
GND 1
RESET/RESET 2
SGM803
SGM809
SGM810
3 VCC
SOT-23-3 / SOT-23
SG Micro Corp
www.sg-micro.com
REV. E. 1
1 page  
SGM803/SGM809/SGM810
Microprocessor Supervisory
Circuit in 3-Pin SOT-23
ELECTRICAL CHARACTERISTICS
(VCC TYP = 5V for L/M/J Models, 3.3V for T/S Models, 3V for R Models, 2.5V for Z Models, 1.8V for X Models; unless otherwise noted.)
PARAMETER
CONDITIONS
SUPPLY
Voltage
TA = 0℃ to +70℃
TA = -40℃ to +125℃
VCC < 5.5V, SGM8_L/M/J, TA = +25℃
Current
VCC < 5.5V, SGM8_L/M/J, TA = -40℃ to +125℃
VCC < 3.6V, SGM8_R/S/T/Z/X, TA = +25℃
VCC < 3.6V, SGM8_R/S/T/Z/X, TA = -40℃ to +125℃
RESET VOLTAGE THRESHOLD
SGM8_L
TA = +25℃
TA = -40℃ to +125℃
SGM8_M
SGM8_J
TA = +25℃
TA = -40℃ to +125℃
TA = +25℃
TA = -40℃ to +125℃
SGM8_T
TA = +25℃
TA = -40℃ to +125℃
SGM8_S
SGM8_R
TA = +25℃
TA = -40℃ to +125℃
TA = +25℃
TA = -40℃ to +125℃
SGM8_Z
TA = +25℃
TA = -40℃ to +125℃
SGM8_X
Reset Threshold Temperature
TA = +25℃
TA = -40℃ to +125℃
Coefficient
VCC to RESET/RESET Delay
VCC = VTH to (VTH – 100mV)
Reset Active Timeout Period
TA = -40℃ to +85℃
TA = -40℃ to +125℃
RESET/ RESET OUTPUT VOLTAGE
Low (SGM803R/S/T/Z/X)
Low (SGM809R/S/T/Z/X)
VCC = VTH(MIN), ISINK = 1.2mA
Low (SGM803L/M/J)
Low (SGM809L/M/J)
VCC = VTH(MIN), ISINK = 3.2mA
Low (SGM803R/S/T/L/M/J/Z/X)
Low (SGM809R/S/T/L/M/J/Z/X)
VCC > 1.0V, ISINK = 50μA
High (SGM809R/S/T/Z/X)
High (SGM809L/M/J)
VCC > VTH(MAX), ISOURCE = 500μA
VCC > VTH(MAX), ISOURCE = 800μA
Low (SGM810R/S/T/Z/X)
VCC = VTH(MAX), ISINK = 1.2mA
Low (SGM810L/M/J)
High (SGM810R/S/T/L/M/J)
VCC = VTH(MAX), ISINK = 3.2mA
1.8V < VCC < VTH(MIN), ISOURCE = 150μA
RESET Open-Drain Output
Leakage Current (SGM803)
VCC > VTH, reset de-asserted
MIN
1.0
1.2
4.537
4.40
4.292
4.16
3.92
3.8
3.003
2.92
2.857
2.78
2.564
2.50
2.262
2.22
1.589
1.55
150
100
0.8 × VCC
VCC - 1.5
0.8 × VCC
TYP
17
13
4.63
4.38
4.00
3.08
2.93
2.63
2.32
1.63
30
20
240
MAX UNITS
5.5 V
5.5 V
30 μA
50 μA
25 μA
45 μA
4.723
4.86
4.468
4.56
4.08
4.2
3.157
3.23
3.003
3.08
2.696
2.76
2.378
2.42
1.671
1.71
560
840
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
ppm/℃
μs
ms
ms
0.3 V
0.4 V
0.3 V
V
V
0.3 V
0.4 V
V
1 μA
SG Micro Corp
www.sg-micro.com
5
5 Page 
SGM803/SGM809/SGM810
PACKAGE OUTLINE DIMENSIONS
SOT-23
D
b
Microprocessor Supervisory
Circuit in 3-Pin SOT-23
E1 E
A1
A2
e
e1
0.76
0.76
2.29
0.95
RECOMMENDED LAND PATTERN (Unit: mm)
A
θ
0.25
L1
L
c
Symbol
A
A1
A2
b
c
D
E
E1
e
e1
L
L1
θ
Dimensions
In Millimeters
MIN MAX
0.900
1.150
0.000
0.100
0.900
1.050
0.300
0.500
0.080
0.150
2.800
3.000
1.200
1.400
2.250
2.550
0.950 BSC
1.900 BSC
0.550 REF
0.300
0.500
0° 8°
Dimensions
In Inches
MIN MAX
0.035
0.045
0.000
0.004
0.035
0.041
0.012
0.020
0.003
0.006
0.110
0.118
0.047
0.055
0.089
0.100
0.037 BSC
0.075 BSC
0.022 REF
0.012
0.020
0° 8°
SG Micro Corp
www.sg-micro.com
11
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet SGM810.PDF ] | |
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