ZXCT1081
ZXCT1081
Document number: DS32102 Rev. 1 - 2
1 of 11
www.diodes.com
March 2010
?Diodes Incorporated
Product Line of
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 糀 supply pin
o    30 糀 I
SENSE
+
"
SOT23-5 package
"
-40癈 to 125癈 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
VOUT
SENSE-
SENSE+
V
CC
GND
OUT
1
2
3
5
4