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PDF ISL28006 Data sheet ( Hoja de datos )

Número de pieza ISL28006
Descripción Rail to Rail Input Current Sense Amplifier
Fabricantes Intersil　
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Micropower, Rail to Rail Input Current Sense Amplifier
with Voltage Output
ISL28006
The ISL28006 is a micropower, uni-directional
high-side and low-side current sense amplifier
featuring a proprietary rail-to-rail input current sensing
amplifier. The ISL28006 is ideal for high-side current
sense applications where the sense voltage is usually
much higher than the amplifier supply voltage. The
device can be used to sense voltages as high as 28V
when operating from a supply voltage as low as 2.7V.
The micropower ISL28006 consumes only 50µA of supply
current when operating from a 2.7V to 28V supply.
The ISL28006 features a common-mode input voltage
range from 0V to 28V. The proprietary architecture
extends the input voltage sensing range down to 0V,
making it an excellent choice for low-side ground sensing
applications. The benefit of this architecture is that a high
degree of total output accuracy is maintained over the
entire 0V to 28V common mode input voltage range.
The ISL28006 is available in fixed (100V/V, 50V/V, 20V/V
and Adjustable) gains in the space saving 5 Ld SOT-23
package and the 6 Ld SOT-23 package for the adjustable
gain part. The parts operate over the extended
temperature range from -40°C to +125°C.
Features
• Low Power Consumption . . . . . . . . . . . . 50µA,Typ
• Supply Range. . . . . . . . . . . . . . . . . . 2.7V to 28V
• Wide Common Mode Input . . . . . . . . . 0V to 28V
• Gain Versions
- ISL28006-100 . . . . . . . . . . . . . . . . . . . 100V/V
- ISL28006-50. . . . . . . . . . . . . . . . . . . . . 50V/V
- ISL28006-20. . . . . . . . . . . . . . . . . . . . . 20V/V
- ISL28006-ADJ . . . . . . . ADJ (Min Gain = 20V/V)
• Operating Temperature Range . . .-40°C to +125°C
• Packages . . . . . . . . . . . 5 Ld SOT-23, 6 Ld SOT-23
Applications*(see page 23)
• Power Management/Monitors
• Power Distribution and Safety
• DC/DC, AC/DC Converters
• Battery Management/Charging
• Automotive Power Distribution
Related Literature*(see page 23)
• See AN1532 for “ISL28006 Evaluation Board User’s
Guide”
Typical Application
SENSE
+12VDC
SENSE
+5VDC
SENSE
+1.0VDC
MULTIPLE
OUTPUT
POWER SUPPLY
GND
RSENSE
- +5VDC
ISL28006
+
RSENSE
- +5VDC
ISL28006
+
RSENSE
- +5VDC
ISL28006
+
+12VDC
OUTPUT
ISENSE
+12VDC
+5VDC
OUTPUT
ISENSE
+5VDC
+1.0VDC
OUTPUT
ISENSE
+1.0VDC
Gain Accuracy vs VRS+ = 0V to
28V
0.6
0.4 +100°C -40°C +25°C +125°C GAIN 100
0.2
0
-0.2
-0.4
-0.6
-0.8
-1
-1.2
-1.40 2 4 6 8 10 12 14 16 18 20 22 24 26 28
VRS+ (V)
September 16, 2010
FN6548.4
1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2010. All Rights Reserved
All other trademarks mentioned are the FprreopeeDrtaytaosfhteheetirhrtetspp:e//cwtivwewo.wdnaetarss.heet4u.com/

1 page




ISL28006 pdf
ISL28006
Electrical Specifications VCC = 12V, VRS+ = 0V to 28V, VSENSE = 0V, RLOAD = 1MΩ, TA = +25°C unless otherwise specified.
Boldface limits apply over the operating temperature range, -40°C to +125°C.
Temperature data established by characterization. (Continued)
PARAMETER
DESCRIPTION
CONDITIONS
MIN
MAX
(Note 7) TYP (Note 7) UNIT
IRS+
(+ Input Bias
Current)
Gain = 100
VRS+ = 2V, VSENSE = 5mV
VRS+ = 0V, VSENSE = 5mV
4.7
-500
-600
-432
6
7
µA
µA
nA
nA
Gain = 50, Gain = 20
VRS+ = 2V, VSENSE = 5mV
4.7 6 µA
8 µA
VRS+ = 0V, VSENSE = 5mV
-700
-840
-432
nA
nA
ADJ Gain = 101
Rf = 100kΩ, Rg = 1kΩ
VRS+ = 2V, VSENSE = 5mV
4.7 6 µA
7 µA
VRS+ = 0V, VSENSE = 5mV
-500
-600
-432
nA
nA
IRS -
(- Input Bias
Current)
G = 100, 50, 20, ADJ
VRS+ = 2V, VSENSE = 5mV
VRS+ = 0V, VSENSE = 5mV
5 50 nA
75 nA
-125 -45
nA
-130
nA
CMRR
PSRR
VFS
G
(Gain)
Common Mode Rejection Ratio VRS+ = 2V to 28V
Power Supply Rejection Ratio VCC = 2.7V to 28V, VRS+ = 2V
Full-scale Sense Voltage
VCC = 28V, VRS+ = 0.2V, 12V
(Note 8)
ISL28006-100
ISL28006-50
105
90
200
115
105
100
50
dB
dB
mV
V/V
V/V
ISL28006-20
20 V/V
ISL28006-ADJ
20 V/V
GA Gain = 100
(Gain Accuracy) (Note 10)
VCC = VRS+ = 12V, VSENSE = 20mV to
100mV
-0.2
-1
0.7 %
1%
VCC = 12V, VRS+ = 0.1V, VSENSE = 20mV to
100mV
-0.25
%
Gain = 50, Gain = 20
(Note 10)
VCC = VRS+ = 12V, VSENSE = 20mV to
100mV
-0.35
-1
0.7 %
1%
VCC = 12V, VRS+ = 0.1V, VSENSE = 20mV to
100mV
-2.2
-2.3
-0.33
2.2
2.3
%
%
ADJ Gain = 21
Rf = 100kΩ, Rg = 5kΩ
(Note 10)
VCC = VRS+ = 12V, VSENSE = 20mV to
100mV
VCC = 12V, VRS+ = 0.1V, VSENSE = 20mV to
100mV
-0.65
-1
-2.2
-2.3
-0.33
1
1.05
2.2
2.3
%
%
%
5 FN6548.4
September 16, 2010
Free Datasheet http://www.datasheet4u.com/

5 Page





ISL28006 arduino
ISL28006
Typical Performance Curves Vcc = 12V, RL = 1M, unless otherwise specified. (Continued)
20 GAIN 50
18 VSENSE = 20mV, 100mV
16
14
12
10
8
6
4
2
0
-250 -200 -150 -100 -50
VOS (µV)
0
50 100
FIGURE 19. VOS (µV) DISTRIBUTION AT +25°C,
VRS+ = 12V, QUANTITY: 100
2800
2600
2400
GAIN 50
VSENSE = 20mV, 100mV
2200
2000
1800
1600
1400
1200
1000
800
600
+125°C
+100°C
400
200
0
-200
-40°C
+25°C
-400 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28
VRS+ (V)
FIGURE 20. VOS vs VRS+
2800
2600
2400
2200
2000
1800
1600
1400
1200
1000
800
600
400
200
0
-200
-4000
+125°C
GAIN 50
VSENSE = 20mV, 100mV
+100°C
+25°C
-40°C
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
VRS+ (V)
FIGURE 21. VOS vs VRS+
250
200
150 +100°C
100
GAIN 50
VSENSE = 2mV, 0mV
50 +125°C
0
-50 +25°C
-100
-150
-200
-40°C
-2502 4 6 8 10 12 14 16 18 20 22 24 26 28
VCC (V)
FIGURE 22. VOS vs VCC, VRS+ = 12V
3000
2000
+100°C
+25°C
1000
0
-40°C
+125°C
-1000
-2000
GAIN 50
-30002
4
6
VSENSE = 2mV, 0mV
8 10 12 14 16 18 20 22 24 26 28
VCC (V)
FIGURE 23. VOS vs VCC, VRS+ = VRS+ = 0.1V
0.6
0.4
+25°C
0.2
-40°C
0
-0.2
-0.4
+100°C
+125°C
-0.6
-0.8
-1.0
-1.2
GAIN 50
VSENSE = 20mV, 100mV
-1.40 2 4 6 8 10 12 14 16 18 20 22 24 26 28
VRS+ (V)
FIGURE 24. GAIN ACCURACY vs VRS+ = 0V TO 28V
11 FN6548.4
September 16, 2010
Free Datasheet http://www.datasheet4u.com/

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