We are using the ADP5061 in a product and need to read/write reliably over I2C when using USB VBUS or a 3.7V lithium battery pack. We cannot find a mention of the voltage threshold ranges for these bus pins, or DIO1-3 pullup.
This design currently has the I2C bus pullups to 3V3. This seems to work on the 1st prototypes but we need to understand margins in all use cases please.
Also, we note the IC address using the common 7-bit format is 0x14 (0x28 as 8-bit)