zxct1080 Zetex Semiconductors plc., zxct1080 Datasheet

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zxct1080

Manufacturer Part Number
zxct1080
Description
Zxct1080 - 60v Common-mode Input Range Current Monitor
Manufacturer
Zetex Semiconductors plc.
Datasheet

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Part Number
Manufacturer
Quantity
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Part Number:
ZXCT1080
Manufacturer:
ZETEX
Quantity:
20 000
Part Number:
zxct1080E5TA
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DIODES
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6 000
Part Number:
zxct1080E5TA
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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 24-28V rails and -48V rails.
Features
Pin connections
Ordering information
Issue 3 - March 2008
© Zetex Semiconductors plc 2008
GND
OUT
Device
ZXCT1080E5TA
V
CC
3V to 60V continuous high side voltage
Accurate high-side current sensing
-40 to 125°C temperature range
Output voltage scaling x10
4.5V to 12V V
Low quiescent current:
• 80µA supply pin
SOT23-5 package
27µA I
1
2
3
S+
CC
range
SOT23-5
Package
5
4
S-
S+
Part mark
1080
1
The separate supply pin (V
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.
Applications
Typical application circuit
V
V
IN
CC
Industrial applications current measurement
Battery management
Over-current measurement
Power management
Automotive current measurement
Reel size
(inches)
7
1
V cc
GND
2
S +
ZXCT1080
4
Tape width
R
SENSE
(mm)
8
OUT
3
CC
S -
5
) allows the device
www.zetex.com
Quantity per
3000
V
reel
OUT

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zxct1080 Summary of contents

Page 1

... 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 ...

Page 2

... This is the negative input of the current monitor and has an input range from 60V down to 3V Issue 3 - March 2008 © Zetex Semiconductors plc 2008 -0.6 and 65V -0.6V and +14V 800mV SENSE -40 to 125°C -55 to 150°C 125°C 300mW 2 ZXCT1080 * 25°C A Min. Max 4 0.15 ...

Page 3

... SENSE S+ S- (b) The ZXCT1080 operates from a positive power rail and the internal voltage-current converter current flow is unidirectional; these result in the output offset voltage for V (c) For V > 10mV, the internal voltage-current converter is fully linear. This enables a true offset to be defined and SENSE used ...

Page 4

... Typical characteristics Test conditions unless otherwise stated: T Issue 3 - March 2008 © Zetex Semiconductors plc 2008 = 25° 5V, V =12V SENSE+ 4 ZXCT1080 = 100mV SENSE www.zetex.com ...

Page 5

... Typical characteristics Test conditions unless otherwise stated: T Issue 3 - March 2008 © Zetex Semiconductors plc 2008 = 25° 5V, V =12V SENSE+ 5 ZXCT1080 = 100mV SENSE www.zetex.com ...

Page 6

... Typical characteristics Test conditions unless otherwise stated: T Issue 3 - March 2008 © Zetex Semiconductors plc 2008 = 25° 5V, V =12V SENSE+ 6 ZXCT1080 = 100mV SENSE www.zetex.com ...

Page 7

... Typical characteristics Test conditions unless otherwise stated: T Issue 3 - March 2008 © Zetex Semiconductors plc 2008 = 25° 5V, V =12V SENSE+ 7 ZXCT1080 = 100mV SENSE www.zetex.com ...

Page 8

... Application information The ZXCT1080 has been designed to allow it to operate with 5V supply rails while sensing common mode signals up to 60V. This makes it well suited to a wide range of industrial and power supply monitoring applications that require the interface to 5V systems while sensing much higher voltages ...

Page 9

... As a result of this phenomenon the ZXCT1080 has been specified to operate in a linear manner over a V range of 10mV to 150mV range, however it will still be monotonic down to SENSE of 0V ...

Page 10

... Note: Controlling dimensions are in millimeters. Approximate dimensions are provided in inches Issue 3 - March 2008 © Zetex Semiconductors plc 2008 Millimeters Max. 1.45 0.15 1.30 0.50 0.26 3.10 3.20 1.80 0.95 REF 1.90 REF 0.60 30° 10 ZXCT1080 Inches Min. Max. 0.0354 0.0570 0.00 0.0059 0.0354 0.0511 0.0078 0.0196 0.0035 0.0102 0.1062 0.1220 0.0866 0.1181 0.0511 ...

Page 11

... Issue 3 - March 2008 © Zetex Semiconductors plc 2008 Intentionally left blank 11 ZXCT1080 www.zetex.com ...

Page 12

... Zetex Semiconductors plc 3701-04 Metroplaza Tower 1 Zetex Technology Park, Chadderton Hing Fong Road, Kwai Fong Oldham, OL9 9LL Hong Kong United Kingdom Telephone: (852) 26100 611 Telephone: (44) 161 622 4444 Fax: (852) 24250 494 Fax: (44) 161 622 4446 asia.sales@zetex.com hq@zetex.com 12 ZXCT1080 www.zetex.com ...

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