This TI Reference Design implements a low-side or high-side wide dynamic range current sensing solution. Wide dynamic range is achieved by a unique gain switching method. Switching gain in hardware allows a faster response time than what can typically be achieved with other methods. The implementation utilizes the INA225, high-speed, multiple gain current shunt monitor along with the INA300 current shunt monitor comparator with open drain output.
• 50mA to 20A Current Sense
• Low-side or High-side Current Sensing
• Single-Supply
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
Download ready-to-use system files to speed your design process.
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
Files used for 3D models or 2D drawings of IC components
Includes TI products in the design and potential alternatives.
| Type | Title | Date | ||
|---|---|---|---|---|
| Design guide | 50-mA to 20 A, Single-Supply, Low-Side or High-Side, Current Sensing Solution | Jul. 18, 2014 |
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