Diodes ZXCT1008 User Manual
Zxct1008, Description, Features
ZXCT1008
Document number: DS33441 Rev. 6 - 2
1 of 8
January 2014
© Diodes Incorporated
ZXCT1008
A Product Line of
Diodes Incorporated
HIGH-SIDE CURRENT MONITOR
Description
The ZXCT1008 is a high side current sense monitor. Using this
device eliminates the need to disrupt the ground plane when
sensing a load current.
It takes a high side voltage developed across a current shunt
resistor and translates it into a proportional output current. A user
defined output resistor scales the output current into a ground-
referenced voltage.
The wide input voltage range of 20V down to as low as 2.5V make
it suitable for a range of applications. The ability to withstand high
voltage transients and reverse polarity connection makes this part
very suitable for automotive and other transient rich environment.
Features
Low cost, accurate high-side current sensing
-40 to +125
℃ temperature range
Up to 500mV sense voltage
2.5V to 20V supply range
4μA quiescent current
1% typical accuracy
SOT23
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Qualified to AEC-Q100 Standards for High Reliability
Applications
Automotive current measurement
DC motor and solenoid control
Over current monitor
Power management
Pin Assignments
SOT23
Package Suffix - F
Application Circuit
ZXCT1008
V
SENSE+
V
SENSE-
I
OUT
R
SENSE
R
lim
R
V
in
To load
V
out
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free,
"Green" and lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl)
and <1000ppm antimony compounds.
I
OUT
V
SENSE+
3
V
SENSE-
(Top View)
2
1
I
OUT
V
SENSE+
3
V
SENSE-
(Top View)
2
1