A Product Line of
Diodes Incorporated
ZXCT1023
MICROPOWER FIXED GAIN OF 50 CURRENT MONITOR
Description
The ZXCT1023 is a precision high-side current sense monitor.
Using this type of device eliminates the need to disrupt the
ground plane when sensing a load current.
The ZXCT1023 has a fixed internal gain of 50 and the only
external component required is the external current sense
resistor; this combined with its 1.2mm x 1.8mm TDFN
package more than quarters the solution size of the
ZXCT1010.
The wide input voltage range of 20V down to as low as 2.5V
makes it suitable for a range of applications.
The combination of operation down to 2.5V and just 3.5µA
quiescent current makes it ideal for single cell Li-Ion/polymer
battery charge/discharge measurement applications.
Pin Connections
TDFN1218-4L
OUT 1
GND 2
Top View
4 S+
3 S-
Features
Typical Operating Circuit
•
•
•
•
•
Accurate high-side current sensing
Fixed gain of 50 output scaling
2.5V – 20V operating range
3.5µA quiescent current
TDFN1218 package
S+
R
GT
R
S
S-
Applications
•
Battery capacity measurement
•
Battery chargers
•
Over-current monitor
–
+
V
OUT
R
G
GND
Ordering Information
Order Reference
ZXCT1023DFGTA
Package
TDFN1218
Device
Marking
1023
Status
Active
Reel Size
(inches)
7
Quantity
per Reel
3000
Tape Width
(mm)
8
ZXCT1023
Rev. 2
1 of 7
October 2009
© Diodes Incorporated
DIODES [ DIODES INCORPORATED ]
