SGM812C [SGMICRO]
Microprocessor Supervisory Circuit with Manual Reset Input;
| 型号： | SGM812C |
| 厂家： | 
Shengbang Microelectronics Co, Ltd |
| 描述： | Microprocessor Supervisory Circuit with Manual Reset Input |
| 文件： | 总7页 (文件大小：585K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SGM811C/SGM812C
Microprocessor Supervisory Circuits
with Manual Reset Input
GENERAL DESCRIPTION
FEATURES
The SGM811C and SGM812C are integrated
microprocessor supervisory devices which can be reset
under power-up, power-down or even voltage reduction
brownout conditions. When VCC is as low as 1V, the
reset output can still operate. On the power-on state,
the internal timer maintains a 200ms reset assertion,
which keeps the microprocessor in the reset state until
the condition is stable.
● Superior Upgrade for MAX811/MAX812 and
ADM811/ADM812
● High Accuracy Fixed Detection Options: 2.5V, 3V,
3.3V and 5V
● Low Supply Current: < 1μA (TYP)
● 200ms (TYP) Power-on Reset Pulse Width
● Reset Output Options:
Active-Low nRESET Output: SGM811C
Active-High RESET Output: SGM812C
● Manual Reset Input
The SGM811C has an active-low nRESET output,
while the SGM812C has an active-high RESET output.
These devices provide six reset threshold voltage
options for 2.5V, 3V, 3.3V and 5V voltage monitoring.
● Reset Valid Down to VCC = 1V
● Available in a Green SOT-143 Package
These devices also provide a manual reset (nMR)
function. It can reduce damage if the device loses its
control or is locked.
APPLICATIONS
Computers
The SGM811C and SGM812C are available in a Green
SOT-143 package. They operates over a junction
temperature range of -40℃ to +125℃.
Battery-Powered Applications
Portable Equipment
Automotive Equipment
Safety Systems
Intelligent Instruments
Critical μP Power Monitoring
TYPICAL APPLICATION
VCC
VCC
VCC
SGM811C
Microprocessor
nMR
nRESET
GND
nRESET
GND
Switch
100kΩ
Figure 1. Typical Application Circuit Example
SG Micro Corp
DECEMBER2022–REV. A
www.sg-micro.com
SGM811C
SGM812C
Microprocessor Supervisory Circuits
with Manual Reset Input
PACKAGE/ORDERING INFORMATION
RESET
MODEL THRESHOLD
(V)
SPECIFIED
TEMPERATURE
RANGE
PACKAGE
DESCRIPTION
ORDERING
NUMBER
PACKAGE
MARKING
PACKING
OPTION
4.43
4.05
SOT-143
SOT-143
SOT-143
SOT-143
SOT-143
SOT-143
SOT-143
SOT-143
SOT-143
SOT-143
SOT-143
SOT-143
SGM811C-MXKA4G/TR
SGM811C-JXKA4G/TR
SGM811C-TXKA4G/TR
SGM811C-SXKA4G/TR
SGM811C-RXKA4G/TR
SGM811C-ZXKA4G/TR
SGM812C-MXKA4G/TR
SGM812C-JXKA4G/TR
SGM812C-TXKA4G/TR
SGM812C-SXKA4G/TR
SGM812C-RXKA4G/TR
SGM812C-ZXKA4G/TR
045XX
047XX
044XX
MCQXX
010XX
011XX
0AOXX
0APXX
0AQXX
0ARXX
0ASXX
0ATXX
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
3.09
SGM811C
2.93
2.63
2.33
4.43
4.05
3.09
SGM812C
2.93
2.63
2.33
MARKING INFORMATION
NOTE: XX = Date Code.
YYY X X
Date Code - Week
Date Code - Year
Serial Number
Green (RoHS & HSF): SG Micro Corp defines "Green" to mean Pb-Free (RoHS compatible) and free of halogen substances. If
you have additional comments or questions, please contact your SGMICRO representative directly.
SG Micro Corp
www.sg-micro.com
DECEMBER 2022
2
SGM811C
SGM812C
Microprocessor Supervisory Circuits
with Manual Reset Input
OVERSTRESS CAUTION
ABSOLUTE MAXIMUM RATINGS
VCC....................................................................... -0.3V to 6V
All Other Inputs........................................-0.3V to VCC + 0.3V
Input Current
Stresses beyond those listed in Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to
absolute maximum rating conditions for extended periods
may affect reliability. Functional operation of the device at any
conditions beyond those indicated in the Recommended
Operating Conditions section is not implied.
VCC, nMR ......................................................................20mA
Output Current
nRESET/RESET...........................................................20mA
Package Thermal Resistance
ESD SENSITIVITY CAUTION
SOT-143, θJA ........................................................... 305℃/W
Junction Temperature.................................................+150℃
Storage Temperature Range.......................-65℃ to +150℃
Lead Temperature (Soldering, 10s)............................+260℃
ESD Susceptibility
This integrated circuit can be damaged if ESD protections are
not considered carefully. SGMICRO recommends that all
integrated circuits be handled with appropriate precautions.
Failureto observe proper handlingand installation procedures
can cause damage. ESD damage can range from subtle
performance degradation tocomplete device failure. Precision
integrated circuits may be more susceptible to damage
because even small parametric changes could cause the
device not to meet the published specifications.
HBM.............................................................................4000V
CDM ............................................................................1000V
RECOMMENDED OPERATING CONDITIONS
Operating Junction Temperature Range......-40℃ to +125℃
DISCLAIMER
SG Micro Corp reserves the right to make any change in
circuit design, or specifications without prior notice.
SG Micro Corp
www.sg-micro.com
DECEMBER 2022
3
SGM811C
SGM812C
Microprocessor Supervisory Circuits
with Manual Reset Input
PIN CONFIGURATION
SGM811C (TOP VIEW)
SGM812C (TOP VIEW)
4
VCC
4
3
VCC
GND
1
2
GND
1
2
3
nMR
nMR
nRESET
RESET
SOT-143
SOT-143
PIN DESCRIPTION
PIN NUMBER
NAME
FUNCTION
SGM811C SGM812C
GND
1
2
1
—
2
Ground.
Active-Low Reset Output Pin. If VCC falls below the reset threshold or nMR is low, nRESET
will keep low. If VCC exceeds the reset threshold, the nRESET will keep low for 200ms (TYP).
nRESET
RESET
Active-Low Reset Output Pin. If the VCC falls below the reset threshold or nMR is low, RESET
will keep high. If the VCC exceeds the reset threshold, RESET will keep high for 200ms (TYP).
—
Manual Reset Input Pin. It is an active-low reset input with an internal pull-up resistor of 60kΩ.
nRESET keeps low when nMR is low. When nMR is high, nRESET becomes high after a
timeout period. The nMR can be driven by a CMOS logic or by a switch shorting to GND. If
nMR
VCC
3
4
3
4
not used, leave it open or connect it to VCC
.
Supply Voltage Pin.
SG Micro Corp
www.sg-micro.com
DECEMBER 2022
4
PACKAGE INFORMATION
PACKAGE OUTLINE DIMENSIONS
SOT-143
1.90
0.95
D
e1
e
E1
E
2.2
1.0
d
b1
b
0.20
0.55
0.95
RECOMMENDED LAND PATTERN (Unit: mm)
L
L1
A
c
A1
A2
θ
0.250
Dimensions
In Millimeters
Dimensions
In Inches
Symbol
MIN
MAX
1.150
0.100
1.050
0.500
0.900
0.150
3.000
MIN
MAX
0.045
0.004
0.041
0.020
0.035
0.006
0.118
A
A1
A2
b
0.900
0.000
0.900
0.300
0.750
0.080
2.800
0.035
0.000
0.035
0.012
0.030
0.003
0.110
b1
c
D
d
0.200 TYP
0.008 TYP
E
1.200
2.250
1.400
2.550
0.047
0.089
0.055
0.100
E1
e
0.95 TYP
0.55 REF
0.037 TYP
0.022 REF
e1
L
1.800
2.000
0.071
0.079
0.012
0°
L1
θ
0.300
0°
0.500
8°
0.020
8°
SG Micro Corp
www.sg-micro.com
TX00047.000
PACKAGE INFORMATION
TAPE AND REEL INFORMATION
REEL DIMENSIONS
TAPE DIMENSIONS
P2
P0
W
Q2
Q4
Q2
Q4
Q2
Q4
Q1
Q3
Q1
Q3
Q1
Q3
B0
Reel Diameter
P1
A0
K0
Reel Width (W1)
DIRECTION OF FEED
NOTE: The picture is only for reference. Please make the object as the standard.
KEY PARAMETER LIST OF TAPE AND REEL
Reel Width
Reel
Diameter
A0
B0
K0
P0
P1
P2
W
Pin1
Package Type
W1
(mm)
(mm) (mm) (mm) (mm) (mm) (mm) (mm) Quadrant
SOT-143
7″
9.5
3.20
2.80
1.30
4.0
4.0
2.0
8.0
Q3
SG Micro Corp
TX10000.000
www.sg-micro.com
PACKAGE INFORMATION
CARTON BOX DIMENSIONS
NOTE: The picture is only for reference. Please make the object as the standard.
KEY PARAMETER LIST OF CARTON BOX
Length
(mm)
Width
(mm)
Height
(mm)
Reel Type
Pizza/Carton
7″ (Option)
7″
368
442
227
410
224
224
8
18
SG Micro Corp
www.sg-micro.com
TX20000.000
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