Hi Everyone,
Now our customer has evaluated INA220 as inserted circuit and then they has confirmed the behavior when Rsns and ferrite beads will be opened and DC/DC will be off. We tried to confirm this behavior by using INA220EVM, then we confirmed unexpected voltage on Vin- pin and Vin+ pin. This voltage looks like flowing from Vin+ pin or Vs pin. Can you explain why the voltage flow from Vin+ or Vs pin to Vin- pin? And can we prevent this behavior?
Best Regards,
Sonoki / Japan Disty