A Product Line of
Diodes Incorporated
ZXCT1082Q/83Q/84Q/85Q/86Q/87Q
AUTOMOTIVE GRADE PRECISION HIGH VOLTAGE HIGH-SIDE CURRENT MONITORS
Description
Pin Assignments
The ZXCT1082Q/83Q/84Q/85Q/86Q/87Q are high side unipolar
current sense monitors. These devices eliminate the need to disrupt
the ground plane when sensing a load current.
VCC
OUT 1
GND 2
S+ 3
5
4
The ZXCT1082Q/1084Q/1086Q have 60V maximum operating
voltages and ZXCT1083Q/1085Q/1087Q have 40V maximum
operating voltages.
S-
The wide common-mode input voltage range and low quiescent
currents coupled with SOT25 packages make them suitable for a
range of applications; including automotive and systems operating
from industrial 24-28V rails.
Typical Application Circuits
RSENSE
Their quiescent current is only 0.6µA thereby minimizing current
sensing error.
VSUPPLY
VLOAD
Load
S+
S-
The
ZXCT1082Q
and
ZXCT1083Q
use
three
external
ZXCT1084/1085
ZXCT1086/1087
transconductance/gain setting resistors which increase versatility by
permitting wide gain ranges and optimization of bandwidths.
VCC
The ZXCT1084Q/85Q/86Q/87Q are fixed gain voltage output
counterparts of the ZXCT1082Q/83.
OUT
GND
The ZXCT1082Q/3Q/4Q/5Q/6Q/7Q have been qualified to AEC-Q100
Grade 1 and are Automotive Grade supporting PPAPs.
ZXCT1084Q/85Q:
ZXCT1086Q/87Q:
VOUT = 25 x VSENSE
VOUT = 50 x VSENSE
Features
RSENSE
Wide supply and common-mode voltage range
VSUPPLY
VLOAD
.
.
2.7V to 60V
2.7V to 40V
ZXCT1082Q/84Q/86Q
ZXCT1083Q/85Q/87Q
RGT
RGT
S-
Independent supply and input common-mode voltage
Low quiescent current (0.6µA).
S+
AEC-Q100 Grade 1 qualified
VCC
ZXCT1082/1083
OUT
Extended industrial temperate range -40 to +125°C
SOT25 package in Green Molding
Load
GND
.
.
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Automotive Grade
RG
.
.
Qualified to AEC-Q100 Standards for High Reliability
PPAP Capable (Note 4)
RG
ZXCT1082Q/83Q:
VOUT=VSENSE×
RGT
Applications
Automotive current measurement
Automotive battery management
Automotive over current monitor
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.
4. Automotive products are AEC-Q100 qualified and are PPAP capable. Automotive, AEC-Q100 and standard products are electrically and thermally
the same, except where specified. For more information, please refer to http://www.diodes.com/quality/product_compliance_definitions.
1 of 13
www.diodes.com
April 2014
© Diodes Incorporated
ZXCT1082Q/83Q/84Q/85Q/86Q/87Q
Document number: DS37015 Rev. 1 - 2
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