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ZXCT1011 PDF даташит

Спецификация ZXCT1011 изготовлена ​​​​«Zetex Semiconductors» и имеет функцию, называемую «High-side low drift current monitor».

Детали детали

Номер произв ZXCT1011
Описание High-side low drift current monitor
Производители Zetex Semiconductors
логотип Zetex Semiconductors логотип 

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ZXCT1011 Даташит, Описание, Даташиты
ZXCT1011
High-side low drift current monitor
Description
The ZXCT1011 is a high side current sense monitor. Using this type of device eliminates the need
to disrupt the ground plane when sensing a load current.
The ZXCT1011 takes the voltage developed across a current shunt resistor and translates it into a
proportional output current.
A user defined output resistor scales the output current into a ground referenced voltage.
A current reference resistor, external to the IC, results in an improved temperature coefficient
compared to the ZXCT1009.
The wide input voltage range of 20V down to as low as 2.5V make it suitable for a range of
applications. With a minimum operating current of just 4uA, combined with its SOT23-5 package
make it suitable for portable battery equipment too.
Features
Applications
Accurate high-side current sensing
2.5V to 20V supply range
4 µA quiescent current
1% typical accuracy
Package SOT23-5
Temperature range -40 to 125°C
Automotive current measurement
Battery management
DC motor and solenoid control
Over current monitor
Power management
Typical application circuit
Pin connections
Vin
Rsense
Load
Rshunt
120
5
Vsense+
4
Vsense-
3 ZXCT1011
I out
2
V
Rout
N/C
Iout
Rshunt
Vsense+
Vsense-
GND
Ordering information
Order code
Pack
ZXCT1011E5TA SOT23-5
Part
mark
1011
Reel Size
inches (mm)
7 (180)
Tape width
8mm
Quantity Per
reel
3,000
Issue 1- July 2005
© Zetex Semiconductors plc 2005
1
www.zetex.com









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ZXCT1011 Даташит, Описание, Даташиты
ZXCT1011
Absolute maximum ratings
Vsense+
Voltage on any pin
Vsense+ to Vsense-
Operating temperature
20 V
0.6V and Vsense+ +0.5V
2.5V
-40 to 125°C
Storage temperature
-55 to 150°C
Maximum junction temperature 150°C
Package power dissipation
300mW at TA = 25°C (De-rate to zero at 150°C)
Operation above the absolute maximum rating may cause device failure. Operation at the
absolute maximum ratings, for extended periods, may reduce device reliability.
Electrical characteristics
Test conditions TA = 25°C, Vin = 5V, Rshunt = 120. Vsense=100mV. Unless otherwise stated.
Symbol Parameter
Conditions
Vin* Supply range
-
Iout Output current
Vsense
= 0V
=10mV
=30mV
=100mV
=200mV
=500mV
Vsense Sense voltage
-
Isense - Vsense- input current
Acc Accuracy
gm Transconductance
Iout/Vsense
-
Rsense = 0.1
Vsense = 100mV
Rshunt = 120
Tc Temperature coefficient-
BW** Bandwidth
PSSR Supply rejection
Vsense = 10mV
CL = 5pF, Rout = 1k
Vsense = 100mV
CL = 5pF, Rout = 1k
Vsense = 200mV, Rout=1k
Min Typ. Max
2.5 - 20
1
84
273
0.97
1.95
4.85
4
116
320
1.00
2.00
5.00
15
124
330
1.03
2.05
5.15
0 - 500
- - 100
-3 - 3
Units
V
µA
µA
µA
mA
mA
mA
mV
nA
%
- 10 -
mA/V
- 30 150 ppm/° C
- 400 -
kHz
1.5 MHz
- 68 -
dB
NOTES:
* Vsense+ relative to Iout.
† Vsense = (Vsense+) - (Vsense-).
‡ Temperature dependent measurements are extracted from characterization and simulation results.
** Where CL is the capacitance across Rout.
Issue 1- July 2005
© Zetex Semiconductors plc 2005
2
www.zetex.com









No Preview Available !

ZXCT1011 Даташит, Описание, Даташиты
Typical characteristics
TA=25°C, Rshunt = 120 unless otherwise stated.
ZXCT1011
Issue 1- July 2005
© Zetex Semiconductors plc 2005
3
www.zetex.com










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