Diodes ZXCT1051 User Manual
Description, Features, Pin connections
© Zetex Semiconductors plc 2006
ZXCT1051
Precision wide input range current monitor
Description
The ZXCT1051 is a wide input range current
monitor, which operates over a range of input
voltages from ground up to V
CC
-2V. As a result
the ZXCT1051 can be used on the high or low
side of the load.
The very low offset voltage enables a typical
accuracy of 1% for sense voltages of only
30mV, giving better tolerances for small sense
resistors necessary at higher currents.
Features
•
Accurate down to end current sensing
•
Output voltage scaling x10
•
0 to V
CC
-2V sense input range
•
2.7 to 20V supply range
•
50 µA quiescent current
•
1% typical accuracy
•
SOT23-5 package
Pin connections
The ZXCT1051 provides a fixed gain of 10
thereby removing the need for an additional
resistor.
Applications
•
Power supply
•
DC motor and solenoid control
•
Battery management
•
Over current monitor
•
Power management
•
Short circuit detection
Typical application circuit
Ordering information
V
CC
GND
V
OUT
V
SENSE
-
V
SENSE
+
ZXCT1051
V
SENSE
+
V
CC
GND
V
OUT
V
OUT
V
SENSE
-
V
SENSE
-
V
SENSE
+
R
SENSE
Order code
Package
Partmark
Reel size
(inches)
Tape width
(mm)
Quantity
per reel
ZXCT1051E5TA
SOT23-5
1051
7
8
3,000