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ISL28005 데이터시트 PDF




Intersil에서 제조한 전자 부품 ISL28005은 전자 산업 및 응용 분야에서
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부품번호 ISL28005 기능
기능 Rail-to-Rail Input Current Sense Amplifier
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ISL28005 데이터시트, 핀배열, 회로
Micropower, Rail-to-Rail Input Current Sense
Amplifier with Voltage Output
ISL28005
The ISL28005 is a micropower, uni-directional
high-side and low-side current sense amplifier
featuring a proprietary rail-to-rail input current sensing
amplifier. The ISL28005 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 ISL28005 consumes only 50µA of supply
current when operating from a 2.7V to 28V supply.
The ISL28005 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 ISL28005 is available in fixed (100V/V, 50V/V and
20V/V) gains in the space saving 5 Ld SOT-23 package.
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
• Fixed Gain Versions
- ISL28005-100 . . . . . . . . . . . . . . . . . . . 100V/V
- ISL28005-50. . . . . . . . . . . . . . . . . . . . . 50V/V
- ISL28005-20. . . . . . . . . . . . . . . . . . . . . 20V/V
• Operating Temperature Range . . -40°C to +125°C
• Package . . . . . . . . . . . . . . . . . . . . .5 Ld SOT-23
Applications*(see page 13)
• Power Management/Monitors
• Power Distribution and Safety
• DC/DC, AC/DC Converters
• Battery Management /Charging
• Automotive Power Distribution
Related Literature*(see page 13)
• See AN1531 for “ISL28005 Evaluation Board User’s
Guide”
Typical Application
SENSE
+12VDC
SENSE
+5VDC
SENSE
+1.0VDC
MULTIPLE
OUTPUT
POWER SUPPLY
GND
RSENSE
- +5VDC
ISL28005
+
RSENSE
- +5VDC
ISL28005
+
RSENSE
- +5VDC
ISL28005
+
+12VDC
OUTPUT
ISENSE
+12VDC
+5VDC
OUTPUT
ISENSE
+5VDC
+1.0VDC
OUTPUT
ISENSE
+1.0VDC
High-Side And Low-Side
Threshold Voltage
1.8
1.6 VRS+
1.4
1.2 VTH(L-H) = 1.52V
VTH(H-L) = 1.23V
1.0
0.8
0.6
0.4
0.2
0
0
VOUT (G=100)
G100, VOUT = 1V
G50, VOUT = 500mV
G20, VOUT = 200mV
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
TIME (ms)
September 16, 2010
FN6973.3
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. 2009, 2010. All Rights Reserved
All other trademarks mentioned are the FprreopeeDrtaytaosfhteheetirhrtetspp:e//cwtivwewo.wdnaetarss.heet4u.com/




ISL28005 pdf, 반도체, 판매, 대치품
ISL28005
Absolute Maximum Ratings
Max Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . ..28V
Max Differential Input Current . . . . . . . . . . . . . . . . .20mA
Max Differential Input Voltage . . . . . . . . . . . . . . . . . .±0.5V
Max Input Voltage (RS+, RS-) . . . . . . . . . GND-0.5V to 30V
Max Input Current for Input Voltage <GND -0.5V . . . ±20mA
Output Short-Circuit Duration . . . . . . . . . . . . . . . Indefinite
ESD Rating
Human Body Model . . . . . . . . . . . . . . . . . . . . . . . . . 4kV
Machine Model . . . . . . . . . . . . . . . . . . . . . . . . . . . .200V
Charged Device Model . . . . . . . . . . . . . . . . . . . . . . 1.5kV
Thermal Information
Thermal Resistance (Typical)
θJA (°C/W) θJC (°C/W)
5 Ld SOT-23 (Notes 5, 6) . . . . . . . 190
90
Maximum Storage Temperature Range . . . -65°C to +150°C
Maximum Junction Temperature (TJMAX) . . . . . . . . . +150°C
Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . .see link below
http://www.intersil.com/pbfree/Pb-FreeReflow.asp
Recommended Operating Conditions
Ambient Temperature Range (TA) . . . . . . . -40°C to +125°C
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact
product reliability and result in failures not covered by warranty.
NOTES:
5. θJA is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief
TB379 for details.
6. For θJC, the “case temp” location is taken at the package top center.
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.
PARAMETER
DESCRIPTION
CONDITIONS
MIN MAX
(Note 7) TYP (Note 7) UNIT
VOS
IRS+, IRS -
Input Offset Voltage
(Notes 8, 9)
Leakage Current
VCC = VRS+ = 12V,
VS = 20mV to = 100mV
VCC = 12V, VRS+ = 0.2V, VS = 20mV,
VS = 100mV
VCC = 0V, VRS+ = 28V
-500
-500
-3
-3.3
60
-1.2
0.041
500
500
3
3.3
1.2
1.5
µV
mV
µA
IRS+
Gain = 100 + Input Bias Current VRS+ = 2V, VSENSE = 5mV
4.7 6 µA
7
VRS+ = 0V, VSENSE = 5mV
-500
-600
-425
nA
Gain = 50, Gain = 20 +Input Bias VRS+ = 2V, VSENSE = 5mV
Current
4.7 6 µA
8
VRS+ = 0V, VSENSE = 5mV
-700
-840
-432
nA
IRS -
Input Bias Current
VRS+ = 2V, VSENSE = 5mV
5 50 nA
75
VRS+ = 0V, VSENSE = 5mV
-125
-130
-45
nA
CMRR
PSRR
VFS
G
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Full-scale Sense Voltage
Gain
(Note 8)
VRS+ = 2V to 28V
VCC = 2.7V to 28V, VRS+ = 2V
VCC = 28V, VRS+ = 0.2V, 12V
ISL28005-100
ISL28005-50
105 115
90 105
200
100
50
dB
dB
mV
V/V
V/V
ISL28005-20
20 V/V
4 FN6973.3
September 16, 2010
Free Datasheet http://www.datasheet4u.com/

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ISL28005 전자부품, 판매, 대치품
ISL28005
Typical Performance Curves Vcc = 12V, RL = 1M, unless otherwise specified.
12 12
GAIN 100
10 10
GAIN 100
88
66
44
22
0 0 10 20 30 40 50 60 70 80 90 100
TIME (µs)
FIGURE 1. LARGE SIGNAL TRANSIENT RESPONSE
VRS+ = 0.2V, VSENSE = 100mV
0
0 10 20 30 40 50 60 70 80 90 100
TIME (µs)
FIGURE 2. LARGE SIGNAL TRANSIENT RESPONSE
VRS+ =12V, VSENSE = 100mV
1.8
VRS+
1.6
1.4
1.2 VTH(L-H) = 1.52V
VTH(H-L) = 1.23V
1.0
0.8
0.6
0.4
0.2
0
0
VOUT (G = 100)
G100, VOUT = 1V
G50, VOUT = 500mV
G20, VOUT = 200mV
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
TIME (ms)
FIGURE 3. HIGH-SIDE and LOW-SIDE THRESHOLD
VOLTAGE VRS+(L-H) and VRS+(H-L),
VSENSE = 10mV
2.4 12
VRS+
2.0 10
VOUT (G = 100)
1.6 RL = 1M
VCC = 12V
1.2
8
6
0.8 G100, VOUT = 2V
G50, VOUT = 1V
0.4 G20, VOUT = 400mV
4
2
0
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8
TIME (ms)
FIGURE 4. VOUT vs VRS+, VSENSE = 20mV
TRANSIENT RESPONSE
0
2.0
0.2
GAIN 100
0.0
-0.2
+25°C
-0.4
-0.6 -40°C
-0.8
+125°C
-1.01µ
10µ 100µ 1m
IOUT(A)
FIGURE 5. NORMALIZED VOA vs IOUT
10m
45
35 GAIN 100
25
15
5 VRS+= 100mV
-5
VCC = 12V
-15 VSENSE = 100mV
-25 AV = 100
RL = 1M
-3510
100
1k
VRS+ = 12V
10k 100k
FREQUENCY (Hz)
1M
FIGURE 6. GAIN vs FREQUENCY VRS+= 100mV/12V,
VSENSE = 100mV, VOUT = 250mVP-P
7 FN6973.3
September 16, 2010
Free Datasheet http://www.datasheet4u.com/

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