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PDF ZXCT1050 Data sheet ( Hoja de datos )
| Número de pieza | ZXCT1050 | |
| Descripción | Precision wide input range current monitor | |
| Fabricantes | Zetex Semiconductors | |
| Logotipo |  |
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ZXCT1050
Precision wide input range current monitor
Description
The ZXCT1050 is a wide input range current
monitor, which operates over a range of input
voltages from ground up to VCC-2V. As a
result the ZXCT1050 can be used on the high
or low side of the load.
The ZXCT1050 provides variable gain by
using two external resistors. The first of
which sets the transconductance and the
second setting the overall gain.
Features
• Accurate down to end current sensing
• Output voltage scaling x10
• 0 to VCC-2V sense input range
• 2.7 to 20V supply range
• 50µA quiescent current
• SOT23-5 package
Pin connections
The very low offset voltage enables a typical
accuracy of 1% for sense voltages of only 30mV,
giving better tolerances for small sense
resistors necessary at higher currents.
Applications
• Power supply
• DC motor and solenoid control
• Battery management
• Over current monitor
• Power management
• Short circuit detection
Typical application circuit
VCC 1
GND 2
OUT 3
5 SENSE-
4 SENSE+
IN RSENSE
RSHUNT
SENSE+
SENSE-
VCC ZXCT1050
OUT
Load
OUT
RGAIN
Ordering information
Order code
Pack
ZXCT1050E5TA
SOT23-5
Issue 1 - June 2007
© Zetex Semiconductors plc 2007
Part mark
1050
Reel size
(inches)
7
Tape width
(mm)
8
Quantity
per reel
3000
1 www.zetex.com
1 page  
ZXCT1050
Typical characteristics
RG = 3.75k⍀, RSH = 7.5k⍀ unless otherwise stated.
10
1
100m
10m
1E-3
1100
1050
0.01
5
0
-5
0.1 -40 -20 0 20 40 60 80 100 120
Temperature Characteristic
10.1
1000
10.0
950
900
-20 -15 -10 -5 0 5 10 15 20
μ
V v Load Current
OUT
18
16
14
12
10
8
6
4
2
0
-2
-4
-6
-8
0 2 4 6 8 10 12 14 16 18 20
Common Mode Characteristic
9.9
0
50m
100m
150m
Incremental Gain v Sense Voltage
12
8
4
0
-4
-8
-12
0
5 10 15
Supply Characteristic
20
Issue 1 - June 2007
© Zetex Semiconductors plc 2007
5
www.zetex.com
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet ZXCT1050.PDF ] | |
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