ZXCT1008_07 ZETEX [Zetex Semiconductors], ZXCT1008_07 Datasheet

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ZXCT1008_07

Manufacturer Part Number
ZXCT1008_07
Description
AUTOMOTIVE HIGH-SIDE CURRENT MONITOR
Manufacturer
ZETEX [Zetex Semiconductors]
Datasheet
AUTOMOTIVE HIGH-SIDE CURRENT MONITOR
ISSUE 3 - FEBRUARY 2007
ORDERING INFORMATION
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
environments.
FEATURES
DEVICE MARKING
Low cost, accurate high-side current sensing
-40 to +125°C temperature range
Up to 500mV sense voltage
2.5V – 20V supply range
4µA quiescent current
1% typical accuracy
SOT23
ZXCT1008FTA
108
DEVICE
REEL
SIZE
7”
WIDTH
TAPE
8mm
QUANTITY PER
3,000 units
REEL
1
APPLICATIONS
APPLICATION CIRCUIT
Automotive current measurement
DC motor and solenoid control
Over current monitor
Power management
ZXCT1008

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ZXCT1008_07 Summary of contents

Page 1

AUTOMOTIVE 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 ...

Page 2

ZXCT1008 ABSOLUTE MAXIMUM RATINGS Voltage on any pin Continuous output current Continuous sense voltage Operating temperature Storage temperature Package power dissipation (T = 25°C) A Operation above the absolute maximum rating may cause device failure. Operation at the absolute maximum ...

Page 3

ISSUE 3 - FEBRUARY 2007 TYPICAL CHARACTERISTICS 3 ZXCT1008 ...

Page 4

ZXCT1008 TYPICAL CHARACTERISTICS (Cont.) PIN DESCRIPTION Pin Name Pin Function V + Supply voltage sense V - Connection to load/battery sense I Output current, proportional to V out CONNECTION DIAGRAM SOT23 Package Suffix – F Top View SCHEMATIC DIAGRAM -V ...

Page 5

POWER DISSIPATION The maximum allowable power dissipation of the device for normal operation (Pmax function of the package junction to ambient thermal resistance (θja), maximum junction temperature (Tjmax), and ambient temperature (Tamb), according to the expression ...

Page 6

ZXCT1008 Where R represents any load including DC load motors, a charging battery or further circuitry that requires monitoring, R can be selected on sense specific requirements of accuracy, size and power rating. An additional resistor, Rlim can be added ...

Page 7

APPLICATIONS INFORMATION PCB trace shunt resistor for low cost solution. The figure below shows output characteristics of the device when using a PCB resistive trace for a low cost solution in replacement for a conventional shunt resistor. The graph shows ...

Page 8

ZXCT1008 PACKAGE OUTLINE leads Controlling dimensions are in millimeters. Approximate conversions are given in inches PACKAGE DIMENSIONS Millimeters Inches DIM Min. Max. Min. Max. A 1.12 0.044 A1 0.01 0.10 ...

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