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PDF ZXCT1080 Data sheet ( Hoja de datos )
| Número de pieza | ZXCT1080 | |
| Descripción | HIGH VOLTAGE HIGH-SIDE CURRENT MONITOR | |
| Fabricantes | Diodes | |
| Logotipo |  |
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ZXCT1080
HIGH VOLTAGE HIGH-SIDE CURRENT MONITOR
Description
The ZXCT1080 is a high side current sense monitor with a
gain of 10 and a voltage output. Using this device eliminates
the need to disrupt the ground plane when sensing a load
current.
The wide input voltage range of 60V down to as low as 3V
make it suitable for a range of applications; including systems
operating from industrial 24 to 28V rails and 48V rails.
The separate supply pin (VCC) allows the device to continue
functioning under short circuit conditions, giving an end stop
voltage at the output.
The ZXCT1080 has an extended ambient operating
temperature range of -40°C to 125°C enabling it to be used in
a wide range of applications including automotive.
Pin Assignments
VCC 1
GND 2
OUT 3
5 S-
74 S+
Features
• 3V to 60V continuous high side voltage
• Accurate high-side current sensing
• -40 to 125°C temperature range
• AEC-Q100 Grade 1 qualified
• Output voltage scaling x10
• 4.5V to 12V VCC range
• Low quiescent current:
o 80μA supply pin
o 27μA IS+
• SOT25 package
Applications
• Industrial applications current measurement
• Battery management
• Over-current measurement
• Power management
• Automotive current measurement
Typical Application Circuit
VIN
VCC
RSENSE
45
S+ S-
1 ZXCT1080
GND
2
OUT
3
VOUT
ZXCT1080
Document number: DS33454 Rev. 4 - 2
1 of 11
www.diodes.com
December 2011
© Diodes Incorporated
1 page  
ZXCT1080
HIGH VOLTAGE HIGH-SIDE CURRENT MONITOR
Typical Characteristics (cont.)
Test conditions unless otherwise stated:TA = 25°C, VIN = 12V, VCC = 5V, VSENSE+ = 12V, VSENSE = 100mV
30 0
VIN = 12V
VCC = 5V
25 VSENSE = 100mV
TA = 125°C
-1
TA = 85°C
-2
20 TA = 25°C
15
TA = 0°C
-3
TA = -40°C
-4
10
-5
TA = -40°C
TA = 0°C
TA = 25°C
TA = 85°C
5
0
0 5 10 15 20 25 30
IOL, OUTPUT SINK CURRENT (µA)
Fig. 7 Output Current Sink
VIN = 12V
-6 VCC = 5V
VSENSE = 100mV
TA = 125°C
-7
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4
IOH, OUTPUT SOURCE CURRENT (mA)
Fig. 8 Output Current Source
10.1
12m
VSENSE = 150mV
10.0
9.9
10m
8m
6m
VSENSE = 100mV
VSENSE = 50mV
VSENSE = 10mV
9.8
9.7
0
6m
50m 100m
VSENSE, SENSE VOLTAGE (V)
Fig. 9 Differential gain
150m
4m
2m
0
0
VCC = 5V
TAMB = 25°C
5 10 15 20 25 30 35 40
VS+, INPUT VOLTAGE (V)
Fig. 10 Output Voltage
4m
2m
0
-2m
-4m
0
5 10 15 20 25 30 35 40
VS+, INPUT VOLTAGE (V)
Fig. 11 Output Voltage
ZXCT1080
Document number: DS33454 Rev. 4 - 2
5 of 11
www.diodes.com
December 2011
© Diodes Incorporated
5 Page 
ZXCT1080
HIGH VOLTAGE HIGH-SIDE CURRENT MONITOR
IMPORTANT NOTICE
DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS
DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other
changes without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability
arising out of the application or use of this document or any product described herein; neither does Diodes Incorporated convey any
license under its patent or trademark rights, nor the rights of others. Any Customer or user of this document or products described
herein in such applications shall assume all risks of such use and will agree to hold Diodes Incorporated and all the companies
whose products are represented on Diodes Incorporated website, harmless against all damages.
Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized
sales channel.
Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall
indemnify and hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees
arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized application.
Products described herein may be covered by one or more United States, international or foreign patents pending. Product names
and markings noted herein may also be covered by one or more United States, international or foreign trademarks.
LIFE SUPPORT
Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without
the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:
A. Life support devices or systems are devices or systems which:
1. are intended to implant into the body, or
2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided
in the labeling can be reasonably expected to result in significant injury to the user.
B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected
to cause the failure of the life support device or to affect its safety or effectiveness.
Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or
systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements
concerning their products and any use of Diodes Incorporated products in such safety-critical, life support devices or systems,
notwithstanding any devices- or systems-related information or support that may be provided by Diodes Incorporated. Further,
Customers must fully indemnify Diodes Incorporated and its representatives against any damages arising out of the use of Diodes
Incorporated products in such safety-critical, life support devices or systems.
Copyright © 2011, Diodes Incorporated
www.diodes.com
ZXCT1080
Document number: DS33454 Rev. 4 - 2
11 of 11
www.diodes.com
December 2011
© Diodes Incorporated
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet ZXCT1080.PDF ] | |
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