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Part Number: INA303
Hi Team, our customer wants to confirm if the INA303 has a reverse battery condition protection or built-in ESD diodes even it has a bidirectional function.
Are we talking about input side, INA303 power supply side or both?
Javier Contreras, TI Sensing Products Applications Support
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In reply to Javier Contreras4:
Thinking about this some more I wanted to clarify why I asked the above. There are ESD diodes but these are not meant to deal with large power or consistent large currents. The intention of these are for ESD events. Even though the ESD will be forward biased during a reverse battery condition unless there are current limiting conditions in place the INA303 will be damaged.
I would recommend that you make sure the device does not go beyond the ABS Max rating in the datasheet.
From this you can see that the input cannot have -12V relative to the GND pin. For the supply even though stated cannot handle voltages below GND. There will be protection diodes but this will not limit the current and will damage the device.
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