ZXCT1082/83/84/85/86/87
ZXCT1082/83/84/85/86/87
Document number: DS32162 Rev. 2 - 2
2 of 13
www.diodes.com
June 2011
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Pin Description
PIN Name
Description
Common ZXCT1082/3 ZXCT1084/5/6/7
1 OUT Output pin. Current output. Voltage output
2 GND Ground pin.
3 S+
This is the positive input of the
current monitor. It has a wide
common-mode input range. The
current through this pin varies with
differential sense voltage.
An external resistor, R
GT
, should
be connected from S+ to the input
side (V
SUPPLY
) of the sense
resistor
Should be directly connected to
the input side (V
SUPPLY
) of the
sense resistor.
4 S-
This is the negative input of the
current monitor. It has a wide
common-mode input range.
An external resistor, R
GT
, should
be connected from S- to the load
side (V
LOAD
) of the sense resistor.
Should be directly connected to
the load side (V
LOAD
) of the sense
resistor.
5
V
CC
This is the analogue supply and provides power to internal circuitry.
Absolute Maximum Ratings
Parameter Rating Unit
Voltage on S- and S+
ZXCT1082, ZXCT1084, ZXCT1086
ZXCT1083, ZXCT1085, ZXCT1087
-0.3 to 65
-0.3 to 45
V
Voltage on V
CC
ZXCT1082, ZXCT1084, ZXCT1086
ZXCT1083, ZXCT1085, ZXCT1087
-0.3 to 65
-0.3 to 45
V
Voltage on OUT
-0.3 to V
S-
V
Differential Input Voltage, V
S+
- V
S-
±800 mV
Input current into S+ or S-
(†)
±12 mA
Storage Temperature -55 to 150 °C
Maximum Junction Temperature 150 °C
Package Power Dissipation
300 at T
A
= 25°C
(De-rate to zero at 150°C)
mW
ESD Rating
Human Body Model 2 kV
Machine Model 200 V
Operation above the absolute maximum rating may cause device failure. Operation at the absolute maximum ratings, for
extended periods, may reduce device reliability.
(†)
The differential input voltage limit, V
S+
- V
S-
may be exceeded provided that the input current limit into S+ or S- is not exceeded
Recommended Operating Conditions
Symbol Parameter Min Max Units
V
IN
ZXCT1083/1085/1087 Common-Mode Input Range
ZXCT1082/1084/1086 Common-Mode Input Range
2.7
2.7
40
60
V
V
CC
ZXCT1083/1085/1087 Supply Voltage Range
ZXCT1082/1084/1086 Supply Voltage Range
2.7
2.7
40
60
V
V
SENSE
Differential Sense Input Voltage Range 0 0.5 V
V
OUT
Output Voltage Range 0
V
S-
-1
V
T
A
Ambient Temperature Range -40 125 °C
