ZXCT1080
HIGH VOLTAGE HIGH-SIDE CURRENT MONITOR
ZXCT1080
Document number: DS33454 Rev. 4 - 2
1 of 11
www.diodes.com
December 2011
?Diodes Incorporated
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 (V
CC
) 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癈 to 125癈 enabling it to be used in
a wide range of applications including automotive.
Features
"     3V to 60V continuous high side voltage
"     Accurate high-side current sensing
"     -40 to 125癈 temperature range
"     AEC-Q100 Grade 1 qualified
"     Output voltage scaling x10
"     4.5V to 12V V
CC
range
"     Low quiescent current:
o    80糀 supply pin
o    27糀 I
S+
"     SOT25 package
Pin Assignments
Applications
"     Industrial applications current measurement
"     Battery management
"     Over-current measurement
"     Power management
"     Automotive current measurement
Typical Application Circuit
1
2
3
5
7
4
S-
S+
OUT
GND
V
CC
1
4
5
3
2
R
SENSE
ZXCT1080
V
CC
V
OUT
V
IN
GND
OUT
S+
S-