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ZXCT1010 데이터시트 PDF




Zetex Semiconductors에서 제조한 전자 부품 ZXCT1010은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

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부품번호 ZXCT1010 기능
기능 ENHANCED HIGH-SIDE CURRENT MONITOR
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ZXCT1010 데이터시트, 핀배열, 회로
ENHANCED HIGH-SIDE CURRENT MONITOR
ZXCT1010
DESCRIPTION
The ZXCT1010 is a high side current sense monitor.
Using this device eliminates the need to disrupt the
ground plane when sensing a load current.
It is an enhanced version of the ZXCT1009 offering
reduced typical output offset and improved accuracy
at low sense voltage.
The wide input voltage range of 20V down to as low as
2.5V make it suitable for a range of applications. A
minimum operating current of just 4µA, combined
with its SOT23-5 package make suitable for portable
battery equipment.
FEATURES
Low cost, accurate high-side current sensing.
Output voltage scaling.
Up to 2.5V sense voltage.
2.5V – 20V supply range.
300nA typical offset current.
4µA quiescent current.
1% typical accuracy.
SOT23 -5 package.
APPLICATIONS
Battery Chargers
Smart Battery Packs
DC Motor control
Over current monitor
Power Management
Level translating
Programmable current source
APPLICATION CIRCUIT
Vin
Rsense
To Load
Vin
Load
ZXCT1010
GND
Iout
Vout
Rout
ORDERING INFORMATION
PART NUMBER
ZXCT1010E5
PACKAGE PARTMARKING
SOT23-5
1010
ISSUE 4 - DECEMBER 2001
1




ZXCT1010 pdf, 반도체, 판매, 대치품
ZXCT1010
PIN DESCRIPTION
Pin Name Pin Function
Vin
Load
Supply Voltage
Connection to load/battery
Iout
GND
Output current, proportional to Vin-Vload
Ground
CONNECTION DIAGRAM
SOT23-5
Package Suffix – E5
NC 1
GND 2
Iout 3
Top View
5 Load
4 VIN
SCHEMATIC DIAGRAM
Vin
Load
100
+-
Iout
ISSUE 4 - DECEMBER 2001
4

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ZXCT1010 전자부품, 판매, 대치품
APPLICATIONS INFORMATION (Continued)
PCB trace shunt resistor for low cost
solution.
The figure below shows output characteristics of the
device when using a PCB resistive trace for a low
cost solution in replacement for a conventional
shunt resistor. The graph shows the linear rise in
voltage across the resistor due to the PTC of the
material and demonstrates how this rise in
resistance value over temperature compensates for
the NTC of the device.
The figure opposite shows a PCB layout suggestion.
The resistor section is 25mm x 0.25mm giving
approximately 150musing 1oz copper. The data
for the normalised graph was obtained using a 1A
load current and a 100output resistor. An
electronic version of the PCB layout is available at
www.zetex.com/isense
ZXCT1010
Actual Size
Layout shows area of shunt
resistor compared to SOT23-5
package. Not actual size
ISSUE 4 - DECEMBER 2001
7

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