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.
- Current Measurement on High-Voltage Bus (±1 kV)
- Power Isolated
- I2C Compatibility
- Reinforced Digital I2C Isolation to Microcontroller
- 1% System Accuracy