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/
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 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 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
V
CC
V
CC
R
PULL-UP
SGM803
only
PIN CONFIGURATIONS
(TOP VIEW)
SGM803/SGM809
RESET
GND
MICROPROCESSOR
SYSTEM
RESET
GND
1
GND
SGM803
SGM809
SGM810
RESET/RESET 2
3
V
CC
SOT-23-3 / SOT-23
SG Micro Corp
www.sg-micro.com
REV. E. 1
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
PACKAGE
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
2
SGM803/SGM809/SGM810
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
Microprocessor Supervisory
Circuit in 3-Pin SOT-23
PACKAGE/ORDERING INFORMATION (Cont.)
MODEL
PACKAGE
MARKING
810L
810LL
810M
810ML
810J
810JL
810T
810TL
810S
810SL
810R
810RL
810Z
810ZL
810X
810XL
PACKAGE
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
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
SG Micro Corp
www.sg-micro.com
3
SGM803/SGM809/SGM810
ABSOLUTE MAXIMUM RATINGS
(Typical values are at T
A
= 25°C, 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
Microprocessor Supervisory
Circuit in 3-Pin SOT-23
Package Thermal Resistance
SOT-23-3,
θ
JA
............................................................... 250℃/W
Operating Temperature Range..........................-40°C to +125°C
Junction Temperature........................................................150°C
Storage Temperature........................................-65°C to +150°C
Lead Temperature (Soldering, 10s)...................................260°C
ESD Susceptibility
HBM..................................................................................4000V
MM......................................................................................400V
NOTE:
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress
ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections
of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
CAUTION
This integrated circuit can be damaged by ESD if you don’t pay attention to ESD protection. SGMICRO recommends that all 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.
SGMICRO reserves the right to make any change in circuit design, specification or other related things if necessary without notice at
any time. Please contact SGMICRO sales office to get the last datasheet.
PIN DESCRIPTION
NAME
GND
RESET
Pin Number
SGM803 SGM809 SGM810
1
1
1
2
—
3
2
—
3
—
2
3
FUNCTION
Ground
Active Low reset.
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. 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 voltage that is monitored.
RESET
V
CC
SG Micro Corp
www.sg-micro.com
4
SGM803/SGM809/SGM810
Microprocessor Supervisory
Circuit in 3-Pin SOT-23
ELECTRICAL CHARACTERISTICS
(V
CC
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
SUPPLY
Voltage
T
A
= 0℃ to +70℃
T
A
= -40℃ to +125℃
V
CC
< 5.5V, SGM8_L/M/J, T
A
= +25℃
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℃
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℃
1.0
1.2
17
13
5.5
5.5
30
50
25
45
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
V
V
μA
μA
μA
μA
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
ppm/℃
560
840
0.3
0.4
0.3
0.8 × V
CC
V
CC
- 1.5
0.3
0.4
0.8 × V
CC
1
μs
ms
ms
V
V
V
V
V
V
V
V
μA
CONDITIONS
MIN
TYP
MAX
UNITS
Current
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
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
4.63
4.38
4.00
3.08
2.93
2.63
2.32
1.63
30
V
CC
= V
TH
to (V
TH
– 100mV)
T
A
= -40℃ to +85℃
Reset Active Timeout Period
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)
V
CC
> V
TH(MAX)
, I
SOURCE
= 500μA
High (SGM809L/M/J)
V
CC
> V
TH(MAX)
, I
SOURCE
= 800μA
Low (SGM810R/S/T/Z/X)
V
CC
= V
TH(MAX)
, I
SINK
= 1.2mA
Low (SGM810L/M/J)
V
CC
= V
TH(MAX)
, I
SINK
= 3.2mA
High (SGM810R/S/T/L/M/J)
1.8V < V
CC
< V
TH(MIN)
, I
SOURCE
= 150μA
RESET
Open-Drain Output
V
CC
> V
TH
, reset de-asserted
Leakage Current (SGM803)
150
100
20
240
SG Micro Corp
www.sg-micro.com
5
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