TRS213: Questions and Schematic Review

Jim CHEN

Part Number: TRS213

Dear Team,

Please help to answer below questions.

1. We used O_COM1_DTR1# as SIO Strapping function. We pull it up to 3.3V and found that there is a 2.12V leakage voltage on Vcc pin. Is there any concern? We also pull it to ground. Is it ok?

2. If we have about 220 mV on 5V rail, will TRS213 consume the power from it?

Regards,

Jim

over 6 years ago

0 Lucas Schulte9 over 6 years ago

TI__Expert 6955 points

Jim,

1. There is a 400k internal pull-up resistor to Vcc at all DIN pins that could cause this to happen. For me to better understand the situation, is the 5V at Vcc disabled at the time you see 2.12V when O_COM1_DTR1# is pulled up to 3.3V?

2. Would the SHDN# pin be pulle low and the TRS213 be formally shutdown during this situation?

-Lucas

0 Miguel Robertson over 6 years ago in reply to Lucas Schulte9

TI__Guru 62920 points

Hi Jim,

We haven't heard back from you, so I am going to mark this post as resolved for now. If you have any further questions or inputs, though, please don't hesitate to contact us.

Max

Interface

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TRS213: Questions and Schematic Review