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Hi Team,
Customer would like evaluate the INA219B for the current monitor application.
Can you help for the following questions?
1.Is INA219A pin to pin compatible with INA219B, and INA219B has higher accuracy? support that INA219B is p2p to INA219A, right?
2.Please review the below schematic and provide your comment for the attachment.
3.Does below circuit has current limit? What change need to be implements if customer wanna monitor 3.3V (20A) and 12V(4A).
4.How to choose the shunt resistor?
Thanks,
SHH
Hi Scott,
I am going to answer questions 1 and 4 in the forum and questions 2 and 3 in your email as it is customer's private schematic.
1. The INA219A and INA219B are pin to pin compatible. The INA219B has improved specs. Refer to Vos spec in the Electrical Characteristics Table.
4. We have a video tutorial that explain how to chose the shunt resistor.
