ZXCT1023_0910 Datasheet, PDF (1/7 Pages) Diodes Incorporated – MICROPOWER FIXED GAIN OF 50 CURRENT MONITOR

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
4 S+
GND 2
3 S-
Top View
Features
• Accurate high-side current sensing
• Fixed gain of 50 output scaling
• 2.5V – 20V operating range
• 3.5µA quiescent current
• TDFN1218 package
Applications
• Battery capacity measurement
• Battery chargers
• Over-current monitor
Typical Operating Circuit
S+
R_GT
V_OUT
R_G
R_S
S-
–
+
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
www.diodes.com
October 2009
© Diodes Incorporated