This verified design can accurately measure current on a bus that carries hundreds of volts. This design is targeted for solar and server applications due to their wide high-voltage input range requirements. This design uses the INA260 current shunt monitor with integrated shunt resistor for current measurements, two P82B96 bidirectional buffers to facilitate I2C communication, and the ISOW7842 to allow isolated current measurements. The INA260 is limited by a common-mode voltage of 36 V; using the ISOW7842 allows the designer to float the INA260 side of the design to facilitate higher bus voltages.
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
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Reference design overview and verified performance test data
Detailed schematic diagram for design layout and components
Complete listing of design components, reference designators, and manufacturers/part numbers
Detailed overview of design layout for component placement
Files used for 3D models or 2D drawings of IC components
Design file that contains information on physical board layer of design PCB
PCB layer plot file used for generating PCB design layout
Includes TI products in the design and potential alternatives.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Design guide | Isolated Current Sense Reference Design With Integrated Shunt Resistor and I2C | Nov. 13, 2017 |
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