LP5030: Maximum value of rise/fall time

Charles Zhang1

Expert 3030 points

Part Number: LP5030

Hi Team,

Do we have maximum test data of rise/fall time of SDL & SCL? Thanks.

over 2 years ago

0 Aaron Bing over 2 years ago

TI__Expert 4160 points

Hi Charles,

We don't have that max rise/fall data tested for I2C bus lines.

Best Regards,

Aaron

0 Charles Zhang1 over 2 years ago in reply to Aaron Bing

TI__Expert 3030 points

Hi Aaron,

May I know the reason why we don't have max rise/fall time data tested?

Thanks,

Charles

0 Aaron Bing over 2 years ago in reply to Charles Zhang1

TI__Expert 4160 points

Hi Charles,

I think it has something to do with max clock freq used. It is evident that a too-long rise time will affect high-level valid time and causes problems to proper I2C communication, but it could be resolved by replacing smaller pull-up resistors. Anyway I will keep this note and see if we can test and add the max rise/fall time.

Best Regards,

Aaron

Power management

Power management forum

LP5030: Maximum value of rise/fall time