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ZXCT1081
ZXCT1081
Document number: DS32102 Rev. 1 - 2
1 of 11
www.diodes.com
March 2010
© Diodes Incorporated
A
Product Line o
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Diodes Incorporated
HIGH VOLTAGE HIGH-SIDE CURRENT MONITOR
Description
The ZXCT1081 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 40V down to as low as 3V
make it suitable for a range of applications; including
systems operating from industrial 24-28V rails and power
supplies.
Pin Assignments
Features
• 3V to 40V continuous high side voltage
• Accurate high-side current sensing
• Output voltage scaling x10
• 4.5V to 12V V
CC
range
• Low quiescent current:
o 80 μA supply pin
o 30 μA I
SENSE
+
• SOT23-5 package
• -40°C to 125°C ambient temperature range
Applications
• Automotive current measurement
• Industrial applications current measurement
• Battery management
• Over current monitor
• Power management
• Power adapters
Typical Application Circuit
SENSE+
4
SENSE-
5
OUT
3
V
cc
1
GND
2
ZXCT1081
R
SENSE
IN
V
CC
V
V
OUT
SENSE-
SENSE+
V
CC
GND
OUT
1
2
3
5
4
