I2C Communication with MP6632

Hi,

It looks like there is I2C capability to talk to the MP6632 chip. The data sheet is a little vague with details. Do you have more in-depth information for communicating with the MP6632 with I2C? It looks like the demo board EV6632A-R-00A has the capability when used with your communication interface, but I would like to be able to communicate directly to the chip through my own processor.

Thanks,
Scott

Hello Scott,

I do not believe that this part is programmable through i2c. I2C is not called out in the datasheet, sda and scl pins are not present and dual purpose pins are not specified.

Hi Eduardo,

Yes, I couldn’t find anything in the data sheet about I2C. But there are control registers that can be written to and read from. When I look at the data sheet for the demo board for the MP6632A (demo board part number EV6632A-R-00A) it calls out I2C signals on pins 2(SDA/PWM/DC) and 3(SCL/FG/RD). These are connected to CN3 Pins 1 and 2. This is from the schematic for the eval board page 6 of eval board manual. I added a picture of the schematic at the end of this. This is what made me think that there is an I2C interface. Page 2 of the manual references a “Communication Interface”. I think the communication interface part number is EVKT-USBI2C-02? If this is not the correct communication interface part number please let me know what is the correct part number.


Thanks for the help,
Scott