ZXCT1009FTA Diodes Zetex, ZXCT1009FTA Datasheet - Page 6

• Manufacturer Part Number: ZXCT1009FTA
• Description: IC CURRENT MONITOR 1% SOT23-3
• Manufacturer: Diodes Zetex

Specifications of ZXCT1009FTA

• Function: Current Monitor
• Sensing Method: High-Side
• Accuracy: ±1%
• Voltage - Input: 2.5 ~ 20 V
• Current - Output: 10.2mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: SOT-23-3, TO-236-3, Micro3™, SSD3, SST3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ZXCT1009FTR

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.
Ordering Information
ZXCT1009
Document number: DS33441 Rev. 12 - 2
ZXCT1009T8TA
ZXCT1009FTA
ZXCT1009F-7
Device
Effect of Sense Resisitor Material
on Temperature Performance
AEC-Q100
Grade 3
None
None
level
Reel
Size
7”
7”
7”
Tape Width
12mm
8mm
8mm
www.diodes.com
6 of 8
Quantity per Reel
Layout shows area of shunt resistor compared to SOT23
3000 Units
3000 Units
1000 Units
HIGH-SIDE CURRENT MONITOR
package. Not actual size.
Part Marking
ZXCT1009
109
109
ZXCT1009
© Diodes Incorporated
Package
SOT23
SOT23
SM8
April 2011