ZXCT1009 Просмотр технического описания (PDF) - Diodes Incorporated.
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ZXCT1009 Datasheet PDF : 8 Pages
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ZXCT1009
HIGH-SIDE CURRENT MONITOR
Application Information (cont.)
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
the linear rise in voltage across the resistor due to the PTC of
the material and demonstrates how this rise in resistance value
over temperature compensates for the NTCof the device.
The figure opposite shows a PCB layout suggestion. The
resistor section is 25mm x 0.25mm giving approximately 150mΩ
using 1oz copper. The data for the normalised graph was
obtained using a 1A load current and a 100Ω output resistor. An
electronic version of the PCB layout is available through Diodes
applications group.
Layout shows area of shunt resistor compared to SOT23
package. Not actual size.
Effect of Sense Resisitor Material
on Temperature Performance
Ordering Information
Device
ZXCT1009FTA
ZXCT1009F-7
ZXCT1009T8TA
AEC-Q100
level
Grade 3
None
None
Reel
Size
7”
7”
7”
Tape Width
8mm
8mm
12mm
Quantity per Reel
3000 Units
3000 Units
1000 Units
Part Marking
109
109
ZXCT1009
Package
SOT23
SOT23
SM8
ZXCT1009
Document number: DS33441 Rev. 12 - 2
6 of 8
www.diodes.com
April 2011
© Diodes Incorporated
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