Diodes ZXCT1081 User Manual
Zxct1081, Description, Pin assignments
ZXCT1081
ZXCT1081
Document number: DS32102 Rev. 1 - 2
1 of 11
March 2010
© Diodes Incorporated
A 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
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
Vcc
1
GND
2
ZXCT1081
R
SENSE
IN
V
CC
V
V
OUT
SENSE-
SENSE+
V
CC
GND
OUT
1
2
3
5
4