Diodes ZXCT1008 - Manual

ZXCT1008
Document number: DS33441 Rev. 6 - 2
1 of 8
www.diodes.com
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 http://www.diodes.com/quality/lead_free.html for 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