LP8866-Q1: I2C Pin Capacitance value

Hi Rajvel,

Our expert is out of office and will reply to you later.

BR, Jared

Hi Rajvel

could you pls kindly check with the I2Ctime requirement in EC table？We introduce the detailed time requirement there.

HI Zhiqian Wu, 

I have checked the I2C requirement table. yes timing specification are provided.  But  The Pin capacitance of I2C pins are not provided in the datasheet. The reason I am asking to size the correct pull up resistor as this I2C Bus is shared with other peripheral also. so  based on the Ti application note SLVA689–February 2015, I am trying to find the Bus capacitance. 

Thanks 

Hi, Rajvel

Let me check with the designer about detailed information.

Hi, Rajvel

Pls refer to our EVM board, it has the detailed resistor value.

Hi Zhiqian, EVM Board uses 2.26K. Please note that Micro controller driving this LED Driver through shared I2C Bus. there are other device also connected on this Bus. if I use the suggested value from EVM (2.26K), I am not sure whether it meets the requirement or not. so we need Pin capacitance of this chip on the I2C line  to calculate correct pull up value. 

Thanks 

Rajvel M

Hi, Rajvel

Understand.