zxct1085 Diodes, Inc., zxct1085 Datasheet

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zxct1085

Manufacturer Part Number
zxct1085
Description
Precision High Voltage High-side Current Monitors
Manufacturer
Diodes, Inc.
Datasheet
1.ZXCT1085.pdf (13 pages)

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
H&T Electronics H&T Electronics
Part Number:
zxct1085E5TA
Quantity:
5 000
Description
The ZXCT1082 and ZXCT1083 are high side unipolar current
sense monitors. These devices eliminate the need to disrupt
the ground plane when sensing a load current.
The ZXCT1082/1084/1086 have 60V maximum operating
voltage and ZXCT1083/1085/1087 have 40V maximum
operating voltage.
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.
Their quiescent current is only 0.6µA thereby minimizing
current sensing error.
The
transconductance/gain setting resistors which increase
versatility by permitting wide gain ranges and optimization of
bandwidths.
The
counterparts of the ZXCT1082/3.
Features
•
•
•
•
•
Applications
•
•
•
•
•
•
ZXCT1082/83/84/85/86/87
Document number: DS32162 Rev. 1 - 2
Wide supply and common-mode voltage range
o
o
Independent supply and input common-mode voltage
Low quiescent current (0.6µA).
Extended industrial temperate range -40 to 125°C
Package SOT25
Automotive current measurement
Industrial applications current measurement
Battery management
Over current monitor
Power Management
Current sources
ZXCT1082
ZXCT1084/5/6/7
2.7V to 60V
2.7V to 40V
and
are
ZXCT1083
ZXCT1082/84/86
ZXCT1083/85/87
fixed
gain
use
voltage
three
PRECISION HIGH VOLTAGE HIGH-SIDE CURRENT MONITORS
external
output
www.diodes.com
1 of 13
Pin Assignments
Typical Application Circuits
ZXCT1082/83: V
ZXCT1084/85:
ZXCT1086/87:
V
V
V
SUPPLY
V
SUPPLY
CC
CC
GND
OUT
GND
GND
Diodes Incorporated
S+
ZXCT1084/1085
ZXCT1086/1087
A Product Line of
S+
ZXCT1082/1083
S+
1
2
3
R
ZXCT1082/83/84/85/86/87
R
R
OUT
SENSE
SENSE
GT
V
V
 
OUT
OUT
= V
S-
S-
R
R
SENSE
5 V
4
= 25 x V
= 50 x V
OUT
GT
OUT
G
S-
CC
* R
© Diodes Incorporated
R
GT
SENSE
SENSE
G
V
V
Load
May 2010
LOAD
Load
LOAD

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zxct1085 Summary of contents

Page 1

Description The ZXCT1082 and ZXCT1083 are high side unipolar current sense monitors. These devices eliminate the need to disrupt the ground plane when sensing a load current. The ZXCT1082/1084/1086 have 60V maximum operating voltage and ZXCT1083/1085/1087 have 40V maximum operating ...

Page 2

... V CC Absolute Maximum Ratings Parameter Voltage on S- and S+ ZXCT1082, ZXCT1084, ZXCT1086 ZXCT1083, ZXCT1085, ZXCT1087 Voltage ZXCT1082, ZXCT1084, ZXCT1086 ZXCT1083, ZXCT1085, ZXCT1087 Voltage on OUT Differential Input Voltage (†) Input current into Storage Temperature Maximum Junction Temperature Package Power Dissipation ...

Page 3

Electrical Characteristics R = 125kΩ; unless otherwise stated. (FT = -40°C to +125°C) G Symbol Parameter Input S+ input current input current I S- SENSE input offset current Input Offset Voltage V IO ...

Page 4

Electrical Characteristics Test Conditions 125kΩ; unless otherwise stated. (FT = -40°C to +125°C) G Symbol Parameter I V Supply current SENSE ZXCT1083/ ZXCT1087 Supply rejection PSRR ratio ...

Page 5

Typical Characteristics V = 12V -40° (V) CC Supply Current vs. Supply Voltage 3.0 2.5 2.0 1.5 1.0 0.5 0 ...

Page 6

Typical Characteristics (cont.) 3.0 2.5 2.0 1.5 1.0 0 Input Current vs. Supply Voltage S- 1.430 1.425 1.420 1.415 1.410 1.405 1.400 1.395 1.390 -40 -25 - ...

Page 7

Typical Characteristics (Cont 500mV SENSE 100mV SENSE 10mV SENSE ( vs 25.00 24.99 24.98 ...

Page 8

Typical Characteristics (Cont.) 0 -0.05 -0.1 G ain = 50 Gain = 100 G ain = 10 -0.15 -0.2 -0.25 -0 (V) CC Error vs 40.0 Gain = 50 30.0 20.0 Gain ...

Page 9

Typical Characteristics (Cont.) 0.015 0.01 0.005 0 V -0.005 -0.01 -0.015 -0.02 V SENSE -0.025 μ Time ( s) Small Signal Pulse Response 0.025 ...

Page 10

Typical Characteristics (Cont.) 120 100 80 ° -40 C ° ° ° 125 -20 1.0E+00 1.0E+02 1.0E+04 Frequency (Hz) Common Mode Rejection Ratio vs. Frequency 300 ...

Page 11

Typical Characteristics (Cont.) 140 25°C 120 -40 C ° 85°C 100 80 125 C ° 1E+0 10E+0 100E+0 1E+3 10E+3 100E+3 1E+6 Frequency (Hz) Power Supply Rejection Ration vs. Frequency 1000 100 10 1 10.0E+0 1.0E+3 ...

Page 12

... Package Outline Dimensions Part Number Status ZXCT1082E5TA Preview SOT25 ZXCT1083E5TA Preview SOT25 ZXCT1084E5TA Preview SOT25 ZXCT1085E5TA Preview SOT25 ZXCT1086E5TA Preview SOT25 ZXCT1087E5TA Preview SOT25 Package Outline Dimensions SOT25 DIM Min A 0.90 A1 0.00 A2 0.90 b 0.20 C 0.09 D 2.70 E 2. 0.10 a° 0 ZXCT1082/83/84/85/86/87 Document number: DS32162 Rev ...

Page 13

DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY ...

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