EV2400: I2C works at 1.8V

CH Khoo

Part Number: EV2400

Hi,

The fuel gauge IC (BQ27546) I2C operates at 1.8V. Can I configure the EV2400 I2c voltage?

0 Jessica H. over 4 years ago

Hi CH Khoo,

The BQ27546 should already work with the EV2300/EV2400 without any additional configuration.

Best,

Jessica

0 CH Khoo over 4 years ago in reply to Jessica H.

Hi Jessica,

Thanks for responding.

The EV2400 pulls SCL and SDA to 3.0V, and it interferes with the 1.8V power rail.

Is it possible to disable the pull-up?

Best regards,

0 Jessica H. over 4 years ago in reply to CH Khoo

Hi CH Khoo,

There is no way to disable the pull-ups on the EV2400.

Best,

Jessica

0 CH Khoo over 4 years ago

Hi Jessica,

Thank you very much for confirming the I2C pull-up cannot be disabled.

Is it possible to adjust the pull-up voltage to 1.8V?

Regards,

0 Jessica H. over 4 years ago in reply to CH Khoo

Hi CH Khoo,

There is no way to change it on the EV2400. Why are you trying to operate your I2C at 1.8V?

Best,

Jessica

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