TPS65640: How to handle unused VT pin

Koshi Ninomiya

Part Number: TPS65640

Tool/software:

Dear Team,

My customer is designing the schematic of the TPS65640 application circuit.
If they do not use the Temperature Compensation feature, how to handle unused VT pin?

Best Regards,

Koshi Ninomiya

10 months ago

0 Steven Li 10 months ago

TI__Mastermind 23425 points

Hi Koshi,

Our expert is currently out of office for Chinese New Year Holiday. He will reply to you after Feb.5 when back to office. Thanks for your understanding.

Best Regards,

Steven

+1 Patrick Yao 10 months ago

TI__Mastermind 35550 points

Hi Ninomiya-san,

You can connect VT to GND through a resistor, and program the HOT and COLD voltage for each rail as the same voltage.

Patrick

0 Koshi Ninomiya 10 months ago in reply to Patrick Yao

TI__Expert 5655 points

Hi Patrick-san,

Thank you for your response.
When connect VT to GND through a resistor, program all, VGHHOT, VGHCOLD, VCOMHOT, VCOMCOLD, voltage for each rail as the same voltage, right?

Best Regards,

Koshi Ninomiya

+1 Patrick Yao 10 months ago in reply to Koshi Ninomiya

TI__Mastermind 35550 points

Hi Ninomiya-san,

Yes, this is more recommended.

Patrick

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TPS65640: How to handle unused VT pin