SGM803_18 [SGMICRO]
Microprocessor Supervisory Circuit in 3-Pin SOT-23;
| 型号： | SGM803_18 |
| 厂家： | 
Shengbang Microelectronics Co, Ltd |
| 描述： | Microprocessor Supervisory Circuit in 3-Pin SOT-23 |
| 文件： | 总13页 (文件大小：1035K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SGM803/SGM809/SGM810
Microprocessor Supervisory
Circuit in 3-Pin SOT-23
GENERAL DESCRIPTION
FEATURES
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
● 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 Power-On Reset (MIN)
until conditions have stabilized. The
output
RESET
remains operational with VCC as low as 1V. The
SGM803/ SGM809 provides an active low reset signal
Open-Drain
Output (SGM803)
RESET
(
) while the SGM810 provides an active high
Push-Pull
RESET
Output (SGM809)
RESET
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.
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
Eight reset threshold voltage options are available
suitable for monitoring 1.8V, 2.5V, 3V, 3.3V and 5V
supply voltages.
APPLICATIONS
The reset comparator features built-in glitch immunity,
making it immune to fast transients on VCC.
Microprocessor Systems
Controllers
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.
Intelligent Instruments
Automotive Systems
Safety Systems
Portable Instruments
TYPICAL APPLICATION
VCC
VCC
RPULL-UP
SGM803
only
MICROPROCESSOR
SYSTEM
SGM803/SGM809
RESET
GND
RESET
GND
SG Micro Corp
JANUARY 2018 – REV. E. 3
www.sg-micro.com
Microprocessor Supervisory
Circuit in 3-Pin SOT-23
SGM803/SGM809/SGM810
PACKAGE/ORDERING INFORMATION
RESET
THRESHOLD (V)
PACKAGE
DESCRIPTION
ORDERING
NUMBER
PACKAGE
MARKING
PACKING
OPTION
MODEL
4.63
4.63
4.38
4.38
4.00
4.00
3.08
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
3.08
2.93
2.93
2.63
2.63
2.32
2.32
1.63
1.63
SOT-23-3
SOT-23
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
803L
803LL
803M
803ML
803J
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
SOT-23-3
SOT-23
SOT-23-3
SOT-23
803JL
803T
SOT-23-3
SOT-23
803TL
803S
SGM803
SOT-23-3
SOT-23
803SL
803R
803RL
803Z
SOT-23-3
SOT-23
SOT-23-3
SOT-23
803ZL
803X
SOT-23-3
SOT-23
803XL
809L
SOT-23-3
SOT-23
809LL
809M
809ML
809J
SOT-23-3
SOT-23
SOT-23-3
SOT-23
809JL
809T
SOT-23-3
SOT-23
809TL
809S
SGM809
SOT-23-3
SOT-23
809SL
809R
809RL
809Z
SOT-23-3
SOT-23
SOT-23-3
SOT-23
809ZL
809X
SOT-23-3
SOT-23
809XL
SG Micro Corp
www.sg-micro.com
JANUARY 2018
2
Microprocessor Supervisory
Circuit in 3-Pin SOT-23
SGM803/SGM809/SGM810
PACKAGE/ORDERING INFORMATION (continued)
PACKAGE
DESCRIPTION
ORDERING
NUMBER
PACKAGE
MARKING
PACKING
OPTION
RESET
THRESHOLD (V)
MODEL
4.63
4.63
4.38
4.38
4.00
4.00
3.08
3.08
2.93
2.93
2.63
2.63
2.32
2.32
1.63
1.63
SOT-23-3
SOT-23
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
810L
810LL
810M
810ML
810J
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
SOT-23-3
SOT-23
SOT-23-3
SOT-23
810JL
810T
SOT-23-3
SOT-23
810TL
810S
SGM810
SOT-23-3
SOT-23
810SL
810R
810RL
810Z
SOT-23-3
SOT-23
SOT-23-3
SOT-23
810ZL
810X
SOT-23-3
SOT-23
810XL
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.
OVERSTRESS CAUTION
ABSOLUTE MAXIMUM RATINGS
(Typical values are at TA = +25℃, unless otherwise noted.)
Stresses beyond those listed may cause permanent damage
to the device. Functional operation of the device at these or
any otherconditions beyond those indicated in the operational
sectionof thespecification is not implied. Exposureto absolute
maximum rating conditions for extended periods may affect
reliability.
VCC....................................................................... -0.3V to 6V
RESET, .......................................-0.3V to VCC + 0.3V
RESET
Input Current, VCC .........................................................20mA
Output Current, RESET, ...................................20mA
RESET
Rate of Rise, VCC ...................................................... 100V/μs
Power Dissipation, PD @ TA = +25℃
ESD SENSITIVITY CAUTION
SOT-23-3 .......................................................................0.4W
Package Thermal Resistance
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.
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 very small parametric changes could cause the
device not to meet its published specifications.
SOT-23-3, θJA .......................................................... 250℃/W
Junction Temperature.................................................+150℃
Storage Temperature Range........................-65℃ to +150℃
Lead Temperature (Soldering, 10s)............................+260℃
ESD Susceptibility
HBM.............................................................................4000V
MM.................................................................................400V
RECOMMENDED OPERATING CONDITIONS
Operating Temperature Range.....................-40℃ to +125℃
DISCLAIMER
SG Micro Corp reserves the right to make any change in
circuitdesign, specificationor other related things if necessary
without notice at any time.
SG Micro Corp
JANUARY 2018
www.sg-micro.com
3
Microprocessor Supervisory
Circuit in 3-Pin SOT-23
SGM803/SGM809/SGM810
PIN CONFIGURATIONS
(TOP VIEW)
1
2
GND
SGM803
SGM809
SGM810
3
VCC
RESET/RESET
SOT-23-3/SOT-23
PIN DESCRIPTION
PIN NUMBER
NAME
FUNCTION
SGM803 SGM809 SGM810
GND
1
1
1
Ground
Active Low Reset (SGM803/SGM809).
remains low while VCC is below
RESET
2
2
—
RESET
the reset threshold, and remains low for 240ms (TYP) after VCC rises above the
reset threshold.
Active High Reset (SGM810). RESET remains high while VCC is below the reset
threshold, and remains high for 240ms (TYP) after VCC rises above the reset
threshold.
RESET
VCC
—
3
—
3
2
3
Power Supply. Power supply voltage that is monitored.
SG Micro Corp
JANUARY 2018
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4
Microprocessor Supervisory
Circuit in 3-Pin SOT-23
SGM803/SGM809/SGM810
ELECTRICAL CHARACTERISTICS
(VCC = 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
MIN
TYP
MAX
UNITS
SUPPLY
1.0
1.2
5.5
5.5
30
50
25
45
V
TA = 0℃ to +70℃
TA = -40℃ to +125℃
CC < 5.5V, SGM8_L/M/J, TA = +25℃
Voltage
V
17
13
μA
μA
μA
μA
V
VCC < 5.5V, SGM8_L/M/J, TA = -40℃ to +125℃
VCC < 3.6V, SGM8_R/S/T/Z/X, TA = +25℃
Current
VCC < 3.6V, SGM8_R/S/T/Z/X, TA = -40℃ to +125℃
RESET VOLTAGE THRESHOLD
4.537
4.40
4.63
4.38
4.00
3.08
2.93
2.63
2.32
1.63
4.723
4.86
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
TA = +25℃
SGM8_L
TA = -40℃ to +125℃
TA = +25℃
4.292
4.16
4.468
4.56
SGM8_M
SGM8_J
SGM8_T
SGM8_S
SGM8_R
SGM8_Z
SGM8_X
TA = -40℃ to +125℃
TA = +25℃
3.92
4.08
3.8
4.2
TA = -40℃ to +125℃
TA = +25℃
3.003
2.92
3.157
3.23
TA = -40℃ to +125℃
TA = +25℃
2.857
2.78
3.003
3.08
TA = -40℃ to +125℃
TA = +25℃
2.564
2.50
2.696
2.76
TA = -40℃ to +125℃
TA = +25℃
2.262
2.22
2.378
2.42
TA = -40℃ to +125℃
TA = +25℃
1.589
1.55
1.671
1.71
TA = -40℃ to +125℃
Reset Threshold Temperature
Coefficient
30
ppm/℃
VCC to RESET/
Delay
V
CC = VTH to (VTH - 100mV)
20
μs
ms
ms
RESET
Reset Active Timeout Period
RESET/ OUTPUT VOLTAGE
150
100
240
560
840
TA = -40℃ to +85℃
TA = -40℃ to +125℃
RESET
Low (SGM803R/S/T/Z/X)
Low (SGM809R/S/T/Z/X)
Low (SGM803L/M/J)
Low (SGM809L/M/J)
Low (SGM803R/S/T/L/M/J/Z/X)
Low (SGM809R/S/T/L/M/J/Z/X)
VCC = VTH(MIN), ISINK = 1.2mA
VCC = VTH(MIN), ISINK = 3.2mA
VCC > 1.0V, ISINK = 50μA
0.3
0.4
0.3
V
V
V
High (SGM809R/S/T/Z/X)
High (SGM809L/M/J)
Low (SGM810R/S/T/Z/X)
Low (SGM810L/M/J)
VCC > VTH(MAX), ISOURCE = 500μA
VCC > VTH(MAX), ISOURCE = 800μA
VCC = VTH(MAX), ISINK = 1.2mA
0.8 × VCC
VCC - 1.5
V
V
V
V
V
V
0.3
0.4
VCC = VTH(MAX), ISINK = 3.2mA
High (SGM810R/S/T/L/M/J/Z)
High (SGM810X)
1.8V < VCC < VTH(MIN), ISOURCE = 150μA
1.2V < VCC < VTH(MIN), ISOURCE = 150μA
0.8 × VCC
0.8 × VCC
Open-Drain Output
Leakage Current (SGM803)
RESET
VCC > VTH, reset de-asserted
1
μA
SG Micro Corp
JANUARY 2018
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5
Microprocessor Supervisory
Circuit in 3-Pin SOT-23
SGM803/SGM809/SGM810
TYPICAL PERFORMANCE CHARACTERISTICS
Pow er-Dow n RESET Delay vs. Temperature
SGM8_L/M/J VOD = VTH - VCC
Pow er-Dow n RESET Delay vs. Temperature
250
200
150
100
50
300
250
200
150
100
50
SGM8_T/S/R/Z
VOD = 10mV
VOD = VTH - VCC
VOD = 10mV
VOD = 20mV
VOD = 20mV
VOD = 100mV
VOD = 200mV
VOD = 100mV
VOD = 200mV
0
0
-50 -30 -10 10
30
50
70 90 110 130
-50 -30 -10 10
30 50
70
90 110 130
Temperature (℃)
Temperature (℃)
Supply Current vs. Temperature (No Load)
Pow er-Up RESET Delay vs. Temperature
SGM8_S
30
25
20
15
10
5
270
265
260
255
250
245
240
235
230
225
220
VCC = 5.5V
VCC = 3.6V
0
-50 -30 -10 10
30
50
70
90 110 130
-50 -30 -10 10 30 50 70 90 110 130
Temperature (℃)
Temperature (℃)
Maximum Transient Duration Without Causing a Reset Pulse
vs. RESET Comparator Overdrive
Normalized RESET Voltage Threshold vs. Temperature
400
1.008
1.006
1.004
1.002
1
350
300
250
200
150
100
50
SGM8_L/M/J
0.998
0.996
0.994
0.992
0.99
SGM8_R/S/T/Z
0
0.988
1
10
100
1000
-50 -30 -10 10 30
50 70 90 110 130
RESET Comparator Overdrive VTH - VCC(mV)
Temperature (℃)
SG Micro Corp
JANUARY 2018
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6
Microprocessor Supervisory
Circuit in 3-Pin SOT-23
SGM803/SGM809/SGM810
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
RESET Output Voltage vs. Supply Voltage
Supply Voltage
5VP-P
RESET Output
Voltage
SGM809R
SGM809S
200ms/div
SG Micro Corp
JANUARY 2018
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7
Microprocessor Supervisory
Circuit in 3-Pin SOT-23
SGM803/SGM809/SGM810
APPLICATION INFORMATION
Benefits of an Accurate Reset Threshold
In other microprocessor supervisory circuits, tolerances
in supply voltages lead to an overall increase in reset
tolerance levels due to the deterioration of the
microprocessor reset circuit’s power supply. The
possibility of a malfunction during a power failure is
greatly reduced because the 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.
Interfacing to Other Devices’ Output
The SGM803/SGM809/SGM810 series is designed to
integrate with as many devices as possible and,
therefore, has a standard output dependent on VCC.
This enables the parts to be used in both 3V and 5V, or
any nominal voltage within the minimum and maximum
specifications for VCC. This design simplifies interfacing
this device to other devices.
Ensuring a Valid Reset Output Down to VCC
= 0V
When VCC falls below 1.0V, the SGM803/SGM809
no longer sinks current. A high impedance
RESET
CMOS logic input connected to
may, therefore,
RESET
Interfacing to Microprocessors with
Multiple Interrupts
drift to undetermined logic levels. To eliminate this
problem, a 100kΩ resistor should be connected from
to ground.
RESET
In a number of cases, it is necessary to interface many
interrupts from different devices (for example, thermal,
altitude, and velocity sensors). The SGM803/SGM809/
SGM810 can easily be integrated into existing interrupt-
handling circuits, as shown in Figure 1, or can be used
as a standalone device.
VCC
VCC
SGM809
RESET
4-LINE BCD TO
PRIORITY ENCODER
GND
MICROPROCESSOR
74LS147
VCC
Figure 2. Ensuring a Valid Reset Output Down to VCC = 0V
Preventing the High Voltage Spike and
Low Power Design
VCC
SGM809
To prevent the high voltage spike damage or input VCC
current limitation low power design, It is always to
connect a resistor R1(0Ω to 1kΩ) in series to VCC, for
such application, one capacitance C1(0.1µF to 4.7µF)
should be connected between VCC Pin and GND. the
schematic is shown in Figure 3. The input resistor will
affect output driving capability.
OTHER SENSING
DEVICES
RESET
GND
Figure 1. Interfacing to Microprocessors with Multiple
Interrupts
R1
0Ω ~ 1kΩ
IN
VCC
OUTPUT
RESET
C1
SGM809
0.1µF ~ 4.7µF
GND
Figure 3. Preventing the High Voltage Spike and Low
Power Design
SG Micro Corp
JANUARY 2018
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8
Microprocessor Supervisory
Circuit in 3-Pin SOT-23
SGM803/SGM809/SGM810
DETAILED DESCRIPTIONS
Reset Timing
The reset signal is asserted LOW for the SGM809 and HIGH for the SGM810 when the power supply voltage falls
below the threshold trip voltage and remains asserted for at least 150ms after the power supply voltage has risen
above the threshold.
Threshould
VCC
Voltage
0V
240ms (TYP)
240ms (TYP)
RESET
*
*
*
*
0V
0V
RESET
VCC to RESET/RESET Delay
VCC to RESET/RESET Delay
NOTE *: Undefined below minimum operating voltage.
Figure 4. Reset Timing Diagram
REVISION HISTORY
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
JANUARY 2018 ‒ REV.E.2 to REV.E.3
Changed Reset Timing Diagram..........................................................................................................................................................................9
SEPTEMBER 2015 ‒ REV.E.1 to REV.E.2
Changed Electrical Characteristics section..........................................................................................................................................................5
JANUARY 2013 ‒ REV.E to REV.E.1
Added Recommended Land Pattern Information ......................................................................................................................................... 10, 11
Added Tape and Reel Information................................................................................................................................................................ 12, 13
SG Micro Corp
JANUARY 2018
www.sg-micro.com
9
PACKAGE INFORMATION
PACKAGE OUTLINE DIMENSIONS
SOT-23
D
b
2.29
E1
E
0.76
0.76
e
e1
0.95
RECOMMENDED LAND PATTERN (Unit: mm)
L1
L
A
A1
c
θ
A2
0.25
Dimensions
In Millimeters
Dimensions
In Inches
Symbol
MIN
MAX
1.150
0.100
1.050
0.500
0.150
3.000
1.400
2.550
MIN
MAX
0.045
0.004
0.041
0.020
0.006
0.118
0.055
0.100
A
A1
A2
b
0.900
0.000
0.900
0.300
0.080
2.800
1.200
2.250
0.035
0.000
0.035
0.012
0.003
0.110
0.047
0.089
c
D
E
E1
e
0.950 BSC
1.900 BSC
0.550 REF
0.037 BSC
0.075 BSC
0.022 REF
e1
L
L1
θ
0.300
0°
0.500
8°
0.012
0°
0.020
8°
SG Micro Corp
www.sg-micro.com
TX00031.000
PACKAGE INFORMATION
PACKAGE OUTLINE DIMENSIONS
SOT-23-3
1.90
D
b
2.59
E1
E
0.99
e
e1
0.95
0.69
RECOMMENDED LAND PATTERN (Unit: mm)
L
A
A1
θ
c
A2
0.2
Dimensions
In Millimeters
Dimensions
In Inches
Symbol
MIN
MAX
1.250
0.100
1.150
0.500
0.200
3.020
1.700
2.950
MIN
MAX
A
A1
A2
b
1.050
0.000
1.050
0.300
0.100
2.820
1.500
2.650
0.041
0.000
0.041
0.012
0.004
0.111
0.059
0.104
0.049
0.004
0.045
0.020
0.008
0.119
0.067
0.116
c
D
E
E1
e
0.950 BSC
1.900 BSC
0.037 BSC
0.075 BSC
e1
L
0.300
0°
0.600
8°
0.012
0°
0.024
8°
θ
SG Micro Corp
www.sg-micro.com
TX00032.000
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-23
7″
7″
9.5
9.0
3.15
3.20
2.77
3.30
1.22
1.30
4.0
4.0
4.0
4.0
2.0
2.0
8.0
8.0
Q3
Q3
SOT-23-3
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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