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 V
CC
as low as 1V. The
SGM803 and SGM809 provide 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.
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 V
CC
.
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 V
CC
●
150ms Power-On Reset (MIN)
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 APPLICATION
V
CC
V
CC
MICROPROCESSOR
SYSTEM
RESET
SGM803/SGM809
RESET
R
PULL-UP
SGM803
only
GND
GND
SG Micro Corp
www.sg-micro.com
JANUARY 2018 – REV. E. 3
SGM803/SGM809/SGM810
PACKAGE/ORDERING INFORMATION
MODEL
RESET
THRESHOLD (V)
4.63
4.63
4.38
4.38
4.00
4.00
3.08
SGM803
3.08
2.93
2.93
2.63
2.63
2.32
2.32
1.63
1.63
4.63
4.63
4.38
4.38
4.00
4.00
3.08
SGM809
3.08
2.93
2.93
2.63
2.63
2.32
2.32
1.63
1.63
PACKAGE
DESCRIPTION
SOT-23-3
SOT-23
SOT-23-3
SOT-23
SOT-23-3
SOT-23
SOT-23-3
SOT-23
SOT-23-3
SOT-23
SOT-23-3
SOT-23
SOT-23-3
SOT-23
SOT-23-3
SOT-23
SOT-23-3
SOT-23
SOT-23-3
SOT-23
SOT-23-3
SOT-23
SOT-23-3
SOT-23
SOT-23-3
SOT-23
SOT-23-3
SOT-23
SOT-23-3
SOT-23
SOT-23-3
SOT-23
ORDERING
NUMBER
Microprocessor Supervisory
Circuit in 3-Pin SOT-23
PACKAGE
MARKING
803L
803LL
803M
803ML
803J
803JL
803T
803TL
803S
803SL
803R
803RL
803Z
803ZL
803X
803XL
809L
809LL
809M
809ML
809J
809JL
809T
809TL
809S
809SL
809R
809RL
809Z
809ZL
809X
809XL
PACKING
OPTION
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
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
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
SGM803-LXN3/TR
SGM803-LXN3L/TR
SGM803-MXN3/TR
SGM803-MXN3L/TR
SGM803-JXN3/TR
SGM803-JXN3L/TR
SGM803-TXN3/TR
SGM803-TXN3L/TR
SGM803-SXN3/TR
SGM803-SXN3L/TR
SGM803-RXN3/TR
SGM803-RXN3L/TR
SGM803-ZXN3/TR
SGM803-ZXN3L/TR
SGM803-XXN3/TR
SGM803-XXN3L/TR
SGM809-LXN3/TR
SGM809-LXN3L/TR
SGM809-MXN3/TR
SGM809-MXN3L/TR
SGM809-JXN3/TR
SGM809-JXN3L/TR
SGM809-TXN3/TR
SGM809-TXN3L/TR
SGM809-SXN3/TR
SGM809-SXN3L/TR
SGM809-RXN3/TR
SGM809-RXN3L/TR
SGM809-ZXN3/TR
SGM809-ZXN3L/TR
SGM809-XXN3/TR
SGM809-XXN3L/TR
SG Micro Corp
www.sg-micro.com
JANUARY
2018
2
SGM803/SGM809/SGM810
Microprocessor Supervisory
Circuit in 3-Pin SOT-23
PACKAGE/ORDERING INFORMATION (continued)
MODEL
RESET
THRESHOLD (V)
4.63
4.63
4.38
4.38
4.00
4.00
3.08
SGM810
3.08
2.93
2.93
2.63
2.63
2.32
2.32
1.63
1.63
PACKAGE
DESCRIPTION
SOT-23-3
SOT-23
SOT-23-3
SOT-23
SOT-23-3
SOT-23
SOT-23-3
SOT-23
SOT-23-3
SOT-23
SOT-23-3
SOT-23
SOT-23-3
SOT-23
SOT-23-3
SOT-23
ORDERING
NUMBER
SGM810-LXN3/TR
SGM810-LXN3L/TR
SGM810-MXN3/TR
SGM810-MXN3L/TR
SGM810-JXN3/TR
SGM810-JXN3L/TR
SGM810-TXN3/TR
SGM810-TXN3L/TR
SGM810-SXN3/TR
SGM810-SXN3L/TR
SGM810-RXN3/TR
SGM810-RXN3L/TR
SGM810-ZXN3/TR
SGM810-ZXN3L/TR
SGM810-XXN3/TR
SGM810-XXN3L/TR
PACKAGE
MARKING
810L
810LL
810M
810ML
810J
810JL
810T
810TL
810S
810SL
810R
810RL
810Z
810ZL
810X
810XL
PACKING
OPTION
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
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
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.
(Typical values are at T
A
= +25℃, unless otherwise noted.)
V
CC
....................................................................... -0.3V to 6V
RESET,
RESET
.......................................-0.3V to V
CC
+ 0.3V
Input Current, V
CC
.........................................................
20mA
Output Current, RESET,
RESET
...................................
20mA
Rate of Rise, V
CC
......................................................
100V/μs
Power Dissipation, P
D
@ T
A
= +25℃
SOT-23-3 ....................................................................... 0.4W
Package Thermal Resistance
SOT-23-3,
θ
JA
.......................................................... 250℃/W
Junction Temperature .................................................+150℃
Storage Temperature Range ........................ -65℃ to +150℃
Lead Temperature (Soldering, 10s) ............................+260℃
ESD Susceptibility
HBM ............................................................................. 4000V
MM ................................................................................. 400V
ABSOLUTE MAXIMUM RATINGS
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.
OVERSTRESS CAUTION
RECOMMENDED OPERATING CONDITIONS
Operating Temperature Range ..................... -40℃ to +125℃
This integrated circuit can be damaged by ESD if you don’t
pay attention to ESD protection. SGMICRO recommends that
all integrated circuits be handled with appropriate precautions.
Failure to observe proper handling and installation procedures
can cause damage. ESD damage can range from subtle
performance degradation to complete device failure. Precision
integrated circuits may be more susceptible to damage
because very small parametric changes could cause the
device not to meet its published specifications.
ESD SENSITIVITY CAUTION
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
JANUARY
2018
3
SGM803/SGM809/SGM810
PIN CONFIGURATIONS
Microprocessor Supervisory
Circuit in 3-Pin SOT-23
(TOP VIEW)
GND
1
RESET/RESET 2
SGM803
SGM809
SGM810
3
V
CC
SOT-23-3/SOT-23
PIN DESCRIPTION
NAME
GND
RESET
PIN NUMBER
SGM803
1
2
—
3
SGM809
1
2
—
3
SGM810
1
—
2
3
Ground
FUNCTION
RESET
V
CC
Active Low
Reset (SGM803/SGM809).
RESET
remains low while V
CC
is below
the reset threshold, and remains low for 240ms (TYP) after V
CC
rises above the
reset threshold.
Active High
Reset (SGM810). RESET remains high while V
CC
is below the reset
threshold, and remains high for 240ms (TYP) after V
CC
rises above the reset
threshold.
Power Supply. Power supply voltage that is monitored.
SG Micro Corp
www.sg-micro.com
JANUARY
2018
4
SGM803/SGM809/SGM810
ELECTRICAL CHARACTERISTICS
PARAMETER
SUPPLY
Voltage
T
A
= 0℃ to +70℃
T
A
= -40℃ to +125℃
V
CC
< 5.5V, SGM8_L/M/J, T
A
= +25℃
Current
Microprocessor Supervisory
Circuit in 3-Pin SOT-23
(V
CC
= 5V for L/M/J Models, 3.3V for T/S Models, 3V for R Models, 2.5V for Z Model, 1.8V for X Model, unless otherwise noted.)
CONDITIONS
MIN
1.0
1.2
17
13
TYP
MAX
5.5
5.5
30
50
25
45
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
30
V
CC
= V
TH
to (V
TH
- 100mV)
T
A
= -40℃ to +85℃
T
A
= -40℃ to +125℃
150
100
20
240
560
840
1.63
2.32
2.63
2.93
3.08
4.00
4.38
4.63
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
UNITS
V
V
μA
μA
μA
μA
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
ppm/℃
μs
ms
ms
V
CC
< 5.5V, SGM8_L/M/J, T
A
= -40℃ to +125℃
V
CC
< 3.6V, SGM8_R/S/T/Z/X, T
A
= +25℃
V
CC
< 3.6V, SGM8_R/S/T/Z/X, T
A
= -40℃ to +125℃
RESET VOLTAGE THRESHOLD
SGM8_L
SGM8_M
SGM8_J
SGM8_T
SGM8_S
SGM8_R
SGM8_Z
SGM8_X
Reset Threshold Temperature
Coefficient
V
CC
to RESET/
RESET
Delay
Reset Active Timeout Period
T
A
= +25℃
T
A
= -40℃ to +125℃
T
A
= +25℃
T
A
= -40℃ to +125℃
T
A
= +25℃
T
A
= -40℃ to +125℃
T
A
= +25℃
T
A
= -40℃ to +125℃
T
A
= +25℃
T
A
= -40℃ to +125℃
T
A
= +25℃
T
A
= -40℃ to +125℃
T
A
= +25℃
T
A
= -40℃ to +125℃
T
A
= +25℃
T
A
= -40℃ to +125℃
RESET/
RESET
OUTPUT VOLTAGE
Low (SGM803R/S/T/Z/X)
V
CC
= V
TH(MIN)
, I
SINK
= 1.2mA
Low (SGM809R/S/T/Z/X)
Low (SGM803L/M/J)
V
CC
= V
TH(MIN)
, I
SINK
= 3.2mA
Low (SGM809L/M/J)
Low (SGM803R/S/T/L/M/J/Z/X)
V
CC
> 1.0V, I
SINK
= 50μA
Low (SGM809R/S/T/L/M/J/Z/X)
High (SGM809R/S/T/Z/X)
High (SGM809L/M/J)
Low (SGM810R/S/T/Z/X)
Low (SGM810L/M/J)
High (SGM810R/S/T/L/M/J/Z)
High (SGM810X)
RESET
Open-Drain Output
Leakage Current (SGM803)
0.3
0.4
0.3
0.8 × V
CC
V
CC
- 1.5
0.3
0.4
0.8 × V
CC
0.8 × V
CC
1
V
V
V
V
V
V
V
V
V
μA
V
CC
> V
TH(MAX)
, I
SOURCE
= 500μA
V
CC
> V
TH(MAX)
, I
SOURCE
= 800μA
V
CC
= V
TH(MAX)
, I
SINK
= 1.2mA
V
CC
= V
TH(MAX)
, I
SINK
= 3.2mA
1.8V < V
CC
< V
TH(MIN)
, I
SOURCE
= 150μA
1.2V < V
CC
< V
TH(MIN)
, I
SOURCE
= 150μA
V
CC
> V
TH
, reset de-asserted
SG Micro Corp
www.sg-micro.com
JANUARY
2018
5
stm32/stm8
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