TCA6424A leakage current

Shu-Cheng LIN

Other Parts Discussed in Thread: TCA6424A

Hi Sir,

Sorry to bother you.

We have use TCA6424A.

Need confirm if VCCP/VCCI is P3V3_S3 (S0)power
When P00~P27 pull high to P3V3 (S5)power, any risk of leakage voltage/current from GPIO S5 power to VCC or SMBUS bus S0 power?

Thanks for your reply.

over 9 years ago

0 Siby James over 9 years ago

TI__Expert 5140 points

Hi Shu-Cheng,

Thank you for the question.

There is a risk of leakage current when pulling the pins higher than VCC (on the order of micro amps), however, there should be no issue if you are only pulling to VCCP.

Thanks,
Siby

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TCA6424A leakage current