SGM8193 [SGMICRO]
Tiny Packages, Nano-Power, Precision Current-Sense Amplifier;
| 型号： | SGM8193 |
| 厂家： | 
Shengbang Microelectronics Co, Ltd |
| 描述： | Tiny Packages, Nano-Power, Precision Current-Sense Amplifier |
| 文件： | 总17页 (文件大小：1011K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SGM8193
Tiny Packages, Nano-Power,
Precision Current-Sense Amplifier
GENERAL DESCRIPTION
FEATURES
The SGM8193 series is a nano-power, high precision,
high-side current-sense amplifier. The device consumes
only 1.2μA (MAX) quiescent current. It features a 60μV
(MAX) low offset voltage, which allows for 12-bit
resolution at a very low 50mV full-scale current
measurement. The device can sense the voltage
across a current-sense resistor in a common mode
voltage range from 1.6V to 28V. The SGM8193 series
provides four fixed gains: 25V/V, 50V/V, 100V/V and
200V/V, which allows flexible selection of the external
current-sense resistor.
● Ultra-Low Quiescent Current: 1.2μA (MAX)
● Input Common Mode Range: 1.6V to 28V
● Low Input Offset Voltage: 60μV (MAX)
● Choice of Gains:
SGM8193A0 Gain: 25V/V
SGM8193A1 Gain: 50V/V
SGM8193A2 Gain: 100V/V
SGM8193A3 Gain: 200V/V
● Low Gain Error: ±0.4% (MAX)
● Voltage Output
● -40℃ to +125℃ Operating Temperature Range
● Available in Green SOT-23-5 and WLCSP-1×1-4B
Packages
The SGM8193 is available in Green SOT-23-5 and
WLCSP-1×1-4B packages. The tiny packages make
the device an excellent choice for portable and battery-
powered applications, where the size is limited. The
SGM8193 is rated over the -40 ℃ to +125 ℃
temperature range.
APPLICATIONS
Portable Equipment
Battery-Powered Equipment
Mobile Phones
Laptops
Personal Digital Assistants
Power Management
TYPICAL APPLICATION
VBATT = 1.6V to 28V
ILOAD
VDD = 3.3V
P
μc
RS+
R1
RSENSE
OUT
ADC
RS-
R1
ROUT
GND
SGM8193
LOAD
Figure 1. Typical Application Circuit
SG Micro Corp
MAY 2023–REV. A. 1
www.sg-micro.com
Tiny Packages, Nano-Power,
SGM8193
Precision Current-Sense Amplifier
PACKAGE/ORDERING INFORMATION
SPECIFIED
TEMPERATURE
RANGE
PACKAGE
DESCRIPTION
ORDERING
NUMBER
PACKAGE
MARKING
PACKING
OPTION
MODEL
SOT-23-5
WLCSP-1×1-4B
SOT-23-5
SGM8193A0XN5G/TR
SGM8193A0XG/TR
SGM8193A1XN5G/TR
SGM8193A1XG/TR
SGM8193A2XN5G/TR
SGM8193A2XG/TR
SGM8193A3XN5G/TR
SGM8193A3XG/TR
06RXX
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℃
SGM8193A0
(Gain = 25V/V)
01
XX
MF5XX
SGM8193A1
(Gain = 50V/V)
5G
XX
WLCSP-1×1-4B
SOT-23-5
01XXX
SGM8193A2
(Gain = 100V/V)
00
XX
WLCSP-1×1-4B
SOT-23-5
06SXX
SGM8193A3
(Gain = 200V/V)
02
XX
WLCSP-1×1-4B
MARKING INFORMATION
NOTE: XX = Date Code.
SOT-23-5
WLCSP-1×1-4B
Serial Number
YY
X X
YYY X X
Date Code - Week
Date Code - Year
Serial Number
Date Code - Week
Date Code - Year
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
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.
RS+, RS- to GND............................................. -0.3V to +30V
OUT to GND ...................................................... -0.3V to +6V
RS+ to RS- ....................................................................±30V
Short-Circuit Duration, OUT to GND.................... Continuous
Continuous Input Current (Any Pin)............................±20mA
Package Thermal Resistance
SOT-23-5, θJA .......................................................... 182℃/W
WLCSP-1×1-4B, θJA ................................................ 187℃/W
Junction Temperature.................................................+150℃
Storage Temperature Range.......................-65℃ to +150℃
Lead Temperature (Soldering, 10s)............................+260℃
ESD Susceptibility
ESD SENSITIVITY CAUTION
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 Temperature Range....................-40℃ to +125℃
DISCLAIMER
SG Micro Corp reserves the right to make any change in circuit
design, or specificationswithout prior notice.
SG Micro Corp
MAY 2023
www.sg-micro.com
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Tiny Packages, Nano-Power,
SGM8193
Precision Current-Sense Amplifier
PIN CONFIGURATIONS
(TOP VIEW)
(TOP VIEW)
1
2
GND
GND
1
2
5
4
RS+
RS-
A
RS+
RS-
B
GND
OUT
OUT
3
WLCSP-1×1-4B
SOT-23-5
PIN DESCRIPTION
PIN
NAME
FUNCTION
WLCSP-1×1-4B
SOT-23-5
A1
A2
B1
B2
5
4
RS+
RS-
Power-Side Pin for the Sense Resistor.
Load-Side Pin for the Sense Resistor.
Ground.
1, 2
3
GND
OUT
Output Voltage. VOUT and VSENSE = VRS+ - VRS- are in direct
proportion.
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Tiny Packages, Nano-Power,
SGM8193
Precision Current-Sense Amplifier
ELECTRICAL CHARACTERISTICS
(VRS+ = VRS- = 3.6V, VSENSE = (VRS+ - VRS-) = 0V, Full = -40℃ to +125℃, typical values are at TA = +25℃, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
TEMP
MIN
TYP
MAX
UNITS
Input Characteristics
10
60
130
28
+25℃
Full
Input Offset Voltage (1)
VOS
µV
V
Guaranteed by CMRR
1.6
1.8
+25℃
Full
Input Common Mode Voltage
Range
VCM
Guaranteed by CMRR
1.6V < VRS+ < 28V
1.8V < VRS+ < 28V
28
106
100
124
+25℃
Full
Common Mode Rejection Ratio
CMRR
dB
Output Characteristics
SGM8193A0
SGM8193A1
SGM8193A2
SGM8193A3
25
50
+25℃
+25℃
+25℃
+25℃
+25℃
Full
Gain
G
V/V
100
200
±0.15
±0.4
±0.6
13
24
5
Gain Error (2)
GE
%
SGM8193A0/SGM8193A1/SGM8193A2
SGM8193A3
Full
7
10
20
Output Resistance (3)
ROUT
kΩ
Full
15.5
G = 25V/V, SGM8193A0
G = 50V/V, SGM8193A1
G = 100V/V, SGM8193A2
G = 200V/V, SGM8193A3
Full
0.5
0.5
1.0
2.0
Full
6
Low Output Voltage
VOL
mV
V
Full
10
20
Full
SGM8193A0/
SGM8193A1/
SGM8193A2
Full
Full
0.14
0.07
0.35
0.2
High Output Voltage (4)
VOH
VOH = VRS- - VOUT
SGM8193A3
NOTES:
1. VOS is inferred from the measured value of gain error test.
2. Gain error is the difference between the ideal gain and the gain obtained by calculating two VSENSE measured values.
G = 25V/V, VSENSE = 20mV and 120mV.
G = 50V/V, VSENSE = 10mV and 60mV.
G = 100V/V, VSENSE = 5mV and 30mV.
G = 200V/V, VSENSE = 2.5mV and 15mV.
3. The device can keep stable with all external capacitance values.
4. VOH is defined as the voltage difference between VRS- and VOUT with VSENSE = 3.6V/gain.
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Tiny Packages, Nano-Power,
SGM8193
Precision Current-Sense Amplifier
ELECTRICAL CHARACTERISTICS (continued)
(VRS+ = VRS- = 3.6V, VSENSE = (VRS+ - VRS-) = 0V, Full = -40℃ to +125℃, typical values are at TA = +25℃, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
TEMP
MIN
TYP
MAX
UNITS
Dynamic Performance
VSENSE = 100mV, SGM8193A0
VSENSE = 50mV, SGM8193A1
280
220
160
125
10
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
Small-Signal Bandwidth (1)
BW
kHz
VSENSE = 25mV, SGM8193A2
VSENSE = 12.5mV, SGM8193A3
1% final value, VSENSE = 100mV
1% final value, VSENSE = 50mV
1% final value, VSENSE = 25mV
1% final value, VSENSE = 12.5mV
1% final value, VSENSE = 3.6V/gain to 0.5V/gain
20
Output Settling Time
tS
µs
20
20
Overload Recovery Time (2)
Input-Referred Voltage Noise
Power Supply
tRC
en
300
275
µs
nV/√Hz
1.6V < VRS+ < 28V
0.85
1.2
2.2
+25℃
Supply Current (3)
ICC
µA
1.8V < VRS+ < 28V
Full
NOTES:
1. The device can keep stable with all external capacitance values.
2. Overload recovery is measured by applying VSENSE equal to 3.6V/gain, then transitioning to 0.5V/gain, and waiting for VOUT to
settle within 1% of the final value.
3. ICC is defined as the total current of IRS+ and IRS- when VOUT = 0V.
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Tiny Packages, Nano-Power,
SGM8193
Precision Current-Sense Amplifier
TYPICAL PERFORMANCE CHARACTERISTICS
At TA = +25℃, VRS+ = VRS- = 3.6V, unless otherwise noted.
VOUT vs. VSENSE
VOUT vs. VSENSE
1.8
1.6
1.4
1.2
1
4
3.5
3
2.5
2
0.8
0.6
0.4
0.2
0
1.5
1
VRS+ = 1.6V
VRS+ = 3.6V
— G = 25V/V
— G = 50V/V
— G = 100V/V
— G = 200V/V
— G = 25V/V
— G = 50V/V
— G = 100V/V
— G = 200V/V
0.5
0
0
20
40
60
80
100
0
50
100
150
200
VSENSE (mV)
VSENSE (mV)
Input Offset Voltage vs. Input Common Mode Voltage
Gain Error vs. Input Common Mode Voltage
14
12
10
8
0.126
0.124
0.122
0.12
6
0.118
0.116
0.114
0.112
4
2
0
0
5
10
15
20
25
30
0
5
10
15
20
25
30
Input Common Mode Voltage (V)
Input Common Mode Voltage (V)
Supply Current vs. Input Common Mode Voltage
Supply Current vs. Temperature
0.9
0.8
0.7
0.6
0.5
0.4
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
— VRS+ = 1.8V
— VRS+ = 3.6V
— VRS+ = 28V
0
5
10
15
20
25
30
-40 -25 -10
5
20 35 50 65 80 95 110 125
Input Common Mode Voltage (V)
Temperature (℃)
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SGM8193
Precision Current-Sense Amplifier
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
At TA = +25℃, VRS+ = VRS- = 3.6V, unless otherwise noted.
Input Offset Voltage vs. Temperature
Gain Error vs. Temperature
40
30
20
10
0
0.15
0.1
10 Typical Units Shown
G = 25V/V
0.05
0
G = 50V/V
G = 100V/V
-0.05
-0.1
-0.15
-10
-20
-30
G = 200V/V
-40 -25 -10
5
20 35 50 65 80 95 110 125
-40 -25 -10
5
20 35 50 65 80 95 110 125
Temperature (℃)
Temperature (℃)
Small-Signal Gain vs. Frequency
CMRR vs. Frequency
5
0
-40
-50
— G = 25V/V
— G = 50V/V
— G = 100V/V
— G = 200V/V
-60
-5
-70
-10
-15
-20
-25
-30
-80
-90
— G = 25V/V
-100
-110
-120
— G = 50V/V
— G = 100V/V
— G = 200V/V
0.01
0.1
1
10
100
1000 10000
0.01
0.1
1
10
100
1000
Frequency (kHz)
Frequency (kHz)
Input-Referred Voltage Noise vs. Frequency
1000
100
10
0.01
0.1
1
10
100
Frequency (kHz)
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Precision Current-Sense Amplifier
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
At TA = +25℃, VRS+ = VRS- = 3.6V, unless otherwise noted.
Input Offset Voltage Production Distribution
Gain Error Production Distribution
35
30
25
20
15
10
5
35
30
25
20
15
10
5
3000 Samples
1 Production Lot
3000 Samples
1 Production Lot
0
0
Gain Error (%)
Input Offset Voltage (mV)
Step Response
Step Response
G = 25V/V, VSENSE = 40mV to 60mV
G = 25V/V, VSENSE = 20mV to 120mV
VSENSE
VSENSE
VOUT
VOUT
Time (25µs/div)
Time (25µs/div)
Step Response
Step Response
G = 50V/V, VSENSE = 20mV to 30mV
G = 50V/V, VSENSE = 10mV to 60mV
VSENSE
VSENSE
VOUT
VOUT
Time (25µs/div)
Time (25µs/div)
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Tiny Packages, Nano-Power,
SGM8193
Precision Current-Sense Amplifier
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
At TA = +25℃, VRS+ = VRS- = 3.6V, unless otherwise noted.
Step Response
Step Response
G = 100V/V, VSENSE = 10mV to 15mV
G = 100V/V, VSENSE = 10mV to 30mV
VSENSE
VSENSE
VOUT
VOUT
Time (25µs/div)
Time (25µs/div)
Step Response
Step Response
G = 200V/V, VSENSE = 5mV to 7.5mV
G = 200V/V, VSENSE = 5mV to 15mV
VSENSE
VSENSE
VOUT
VOUT
Time (25µs/div)
Time (25µs/div)
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SGM8193
Precision Current-Sense Amplifier
FUNCTIONAL BLOCK DIAGRAM
RS+
P
R1
OUT
RS-
R1
ROUT
SGM8193
GND
Figure 2. Block Diagram
DETAILED DESCRIPTION
The SGM8193 is a unidirectional high-side current
sensing monitor with an input common mode range
from 1.6V to 28V. This common mode voltage range
allows measuring of a 1.8V battery system. The load
current that flows through the external resistor RSENSE
generates a corresponding sense voltage that is
amplified by the current sensing monitor.
connecting to the positive input of the internal
operational amplifier. The PMOS, which is integrated
inside the device, forces the current through R1 to also
flow through ROUT, such that VOUT is equal to ILOAD
RSENSE × ROUT/R1. Therefore, the two resistors R1 and
OUT will determine the gain, which for the SGM8193A0
×
R
is set to 25V/V, for the SGM8193A1 is set to 50V/V, for
the SGM8193A2 is set to 100V/V and for the SGM8193A3
is set to 200V/V (see Table 1). The output current-limit
and a 6V clamp protection circuit are used for
protecting the output from input overdrive.
The internal amplifier will force the load current through
the resistor R1 such that the voltage drop over R1 is
equal to the sense voltage across the external resistor.
To minimize the offset voltage, there is also a resistor
Table 1. Internal Gain-Setting Resistors (Typical Values)
Gain (V/V)
R1 (Ω)
ROUT (kΩ)
200
100
50
100
100
200
400
20
10
10
10
25
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APPLICATIONS INFORMATION
It is recommended to use a larger RSENSE when
measuring a small load current, as this minimizes the
effect of the input offset voltage on the output error.
Choosing the Sense Resistor
The sense resistor should be selected by the following
steps.
Efficiency and Power Dissipation
If the current level is increasing, the I2R loss will be
increased. So the trade-off between power dissipation
and the value of resistor is significant. In addition, the
resistance will be changed if the corresponding
temperature is higher due to the power dissipation. The
SGM8193 allows using lower external resistor so that
the power dissipation and the hot spots are decreased
dramatically.
R
SENSE Voltage Loss
Due to Ohm’s Law, the voltage drop across RSENSE will
be increased if the customer prefers higher RSENSE
.
However, for obtaining the minimum voltage drop, the
lowest RSENSE should be taken into account.
OUT Swing vs. VRS+ and VSENSE
The SGM8193 is powered through its RS+ pin, which
means that there is no supply voltage pin. Therefore,
the maximum output swing value is limited by the
minimum voltage level of RS+.
Kelvin Connections
The current flowing through the RSENSE will be
significantly high, so that the external voltage drop
caused by the PCB trace should also be considered.
Use the sense resistor with four terminals or use Kelvin
connections.
V
OUT(MAX) = VRS+(MIN) - VSENSE(MAX) - VOH
(1)
VOUT
MAX
(
)
(2)
RSENSE
=
G ×ILOAD
MAX
(
)
Moreover, when the SGM8193 is powered by a 3.6V
power supply, the largest dynamic range will be
achieved if RSENSE is chosen such that the maximum
Optional Output Filter Capacitor
For the sample and hold stage in the ADC, the
sampling capacitor would instantly load the output of
the SGM8193 and thusly the output voltage will be
decreased. If the sampling time of the ADC is short
(less than 1µs), the ceramic capacitor will keep the
output voltage stable. Also, the small signal bandwidth
and the corresponding noise are also reduced by using
an additional capacitor at the output stage of the
SGM8193.
VSENSE voltage is 120mV (gain of 25V/V), 60mV (gain of
50V/V), 30mV (gain of 100V/V) or 15mV (gain of
200V/V).
Accuracy
Within the linear region of the SGM8193 (VOUT
<
VOUT(MAX)), the input offset voltage and the gain error
are the two main issues that affect the accuracy of the
output voltage. For the SGM8193, the offset voltage
VOS is 10μV (TYP) and the gain error (GE) is ±0.15%
(TYP). The following equation illustrates the actual
output voltage according to the gain error and offset
voltage:
VOUT = (G ± GE) × VSENSE ± (G × VOS)
(3)
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Precision Current-Sense Amplifier
APPLICATIONS INFORMATION (continued)
Using the SGM8193 in Bidirectional Application
For the applications which are powered by battery, the bidirectional measurement is required as the customer needs
to know the charging and discharging current of the battery. The following circuit provides an accuracy measurement
for charging and discharging current, which is shown in Figure 3.
VBATT = 1.6V to 28V
ILOAD
P
RS+
R1
OUT
VDD = 3.3V
RS-
R1
ROUT
μc
SGM8193
ADC
GND
ADC
P
RS+
RS-
R1
RSENSE
OUT
R1
ROUT
GND
SGM8193
LOAD
To Wall-Cube/Charger
Figure 3. Bidirectional Application
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Precision Current-Sense Amplifier
REVISION HISTORY
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
MAY 2023 ‒ REV.A to REV.A.1
Page
Updated Electrical Characteristics section...........................................................................................................................................................5
Updated Typical Performance Characteristics section.........................................................................................................................................7
Changes from Original (DECEMBER 2022) to REV.A
Page
Changed from product preview to production data.............................................................................................................................................All
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PACKAGE INFORMATION
PACKAGE OUTLINE DIMENSIONS
SOT-23-5
1.90
D
e1
2.59
E1
E
0.99
b
e
0.95
0.69
RECOMMENDED LAND PATTERN (Unit: mm)
L
A2
A
ccc
C
SEATING PLANE
A1
θ
c
C
0.25
Dimensions In Millimeters
Symbol
MIN
MOD
MAX
1.450
0.150
1.300
0.500
0.220
3.050
1.750
3.000
A
A1
A2
b
-
-
0.000
0.900
0.300
0.080
2.750
1.450
2.600
-
-
-
c
-
D
-
E
-
E1
e
-
0.950 BSC
e1
L
1.900 BSC
0.300
0°
-
-
0.600
8°
θ
ccc
0.100
NOTES:
1. This drawing is subject to change without notice.
2. The dimensions do not include mold flashes, protrusions or gate burrs.
3. Reference JEDEC MO-178.
SG Micro Corp
TX00033.001
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PACKAGE INFORMATION
PACKAGE OUTLINE DIMENSIONS
WLCSP-1×1-4B
D
0.27
4 × Φ
0.25
A1 CORNER
0.50
E
0.50
RECOMMENDED LAND PATTERN (Unit: mm)
TOP VIEW
2
1
4 × Φd
A
B
e
A
A1
e
ccc
C
SEATING PLANE
C
SIDE VIEW
BOTTOM VIEW
Dimensions In Millimeters
Symbol
MIN
MOD
0.640
MAX
0.678
0.256
1.030
1.030
0.339
A
A1
D
0.602
0.216
0.970
0.970
0.299
0.236
1.000
E
1.000
d
0.319
e
0.500 BSC
0.050
ccc
NOTE: This drawing is subject to change without notice.
SG Micro Corp
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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-23-5
7"
7"
9.5
9.5
3.20
1.12
3.20
1.12
1.40
0.78
4.0
4.0
4.0
4.0
2.0
2.0
8.0
8.0
Q3
Q1
WLCSP-1×1-4B
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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