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ZXCT1023 데이터시트 PDF




Zetex Semiconductors에서 제조한 전자 부품 ZXCT1023은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


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부품번호 ZXCT1023 기능
기능 High-side Current Sense Monitor
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ZXCT1023 데이터시트, 핀배열, 회로
www.DataSheet4U.com
A Product Line of
Diodes Incorporated
ZXCT1023
MICROPOWER FIXED GAIN OF 50 CURRENT MONITOR
Description
The ZXCT1023 is a precision high-side current sense monitor. Using
this type of device eliminates the need to disrupt the ground plane
when sensing a load current.
The ZXCT1023 has a fixed internal gain of 50 and the only external
component required is the external current sense resistor; this
combined with its 1.2mm x 1.8mm TDFN package more than quarters
the solution size of the ZXCT1010.
The wide input voltage range of 20V down to as low as 2.5V makes it
suitable for a range of applications.
The combination of operation down to 2.5V and just 3.5µA quiescent
current makes it ideal for single cell Li-Ion/polymer battery
charge/discharge measurement applications.
Pin Connections
TDFN1218-4L
OUT 1
4 S+
GND 2
3 S-
Top View
Features
Accurate high-side current sensing
Fixed gain of 50 output scaling
2.5V – 20V operating range
3.5µA quiescent current
TDFN1218 package
Typical Operating Circuit
S+
RGT
RS S-
Applications
Battery capacity measurement
Battery chargers
Over-current monitor
VOUT
RG
GND
Ordering Information
Order Reference Package
ZXCT1023DFGTA TDFN1218
Device
Marking
1023
Status
Active
Reel Size
(inches)
7
Quantity
per Reel
3000
Tape Width
(mm)
8
ZXCT1023
Document Rev. 1
1 of 6
www.diodes.com
MARCH 2009
©Diodes Incorporated




ZXCT1023 pdf, 반도체, 판매, 대치품
www.DataSheet4U.com
A Product Line of
Diodes Incorporated
ZXCT1023
MICROPOWER FIXED GAIN OF 50 CURRENT MONITOR
40
30 VS+=3.6V
20 TA =25°C
10
0
-10
Typical AC characteristics
70
VSENSE = 50mV
60
VSENSE = 10mV
50
40
30
20
10
TA = 25°C
VSENSE = 50mV
VS+ =
VS+ = 10V
-20
10E+0
25
20
15
10
5
0
0
-5
56
55
100E+0
1E+3
10E+3 100E+3
frequency (Hz)
1E+6
Small signal frequency response
VS+=3.6V, TA = 25°C
VSENSE = 20mV
10E+6
1.2
1
0.8
Input
Output
0.6
0.4
0.2
50 100 150 200 250
Time (µs)
Large signal pulse response 20mV
VS+=3.6V, TA =25°C
VSENSE = 50mV(DC) + 5mV
0
300
-0.2
2.80
2.75
0
0.01
60
50
40
30
20
10
0
-10
0
51
50
0.1 1 10 100
Frequency (kHz)
Power supply rejection ratio
VS+=3.6V, TA = 25°C
VSENSE = 50mV
l
1000
3.0
2.5
2.0
Input
1.5
Output
1.0
0.5
0.0
50 100 150
Time (µs)
Large signal pulse response 50mV
VS+=3.6V, TA =25°C
VSENSE = 50mV(DC) - 5mV pulse
-0.5
200
2.55
2.50
54 Input
53
52
2.70
2.65
2.60
49
48
47
Input
2.45
2.40
2.35
51
Output
2.55
50 2.50
49 2.45
0 50 100 150 200
time (µs)
Small signal positive pulse response
46 Output 2.30
45 2.25
44 2.20
0 25 50 75 100 125 150
time (µs)
Small signal negative pulse response
Pin out information
Package
Name
1 OUT
2 GND
NC
3 S-
4 S+
Pin function
Voltage output. The output voltage is referenced to GND.
The overall voltage gain of
VOUT = 50 x VSENSE where VSENSE = VS+ - VS-
Ground and substrate connection of device.
No connection
High impedance negative sense voltage input
Positive sense input. Also acts as power supply pin to ZXCT1023
ZXCT1023
Document Rev. 1
4 of 6
www.diodes.com
MARCH 2009
©Diodes Incorporated

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