Isolated Current Sense with Integrated Shunt Resistor and I2C Interface Reference Design
Description
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.
Features
- Current Measurement on High-Voltage Bus (±1 kV)Power IsolatedI2C CompatibilityReinforced Digital I2C Isolation to Microcontroller1% System Accuracy
Applications
- Oscilloscopes & digitizers
- Baseband unit (BBU)
- Spectrometer
- Ventilators
- Three phase UPS
- Automotive test
- Performance client
- High performance computing
- Seeker front end
- Global positioning system receiver
- Microserver & tower server
- Appliances: battery charger
- Standalone avionics PFC
- Radar
- Source measurement unit (SMU)
- Programmable DC power supply
- Single phase online UPS
- Battery cell formation & test equipment
- Surgical equipment
- Indoor backhaul
- Single phase line interactive UPS
- Three phase UPS control & communication module
- Multi-access edge computing (MEC)
- Rack server motherboard
- Blade server
Product Categories
- Amplifiers