TUSB1044: TUSB1044 - About “FLIP/SCL” and “CTL0/SDA” pin at Vcc =0V

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Guru 21045 points

Part Number: TUSB1044

Hi Team,

Our customer use TUSB1044 in I2C mode.

Then, they would like to apply the pull up voltage to “FLIP/SCL” and “CTL0/SDA” pins at Vcc=0V.

Could you please let us know if you have any concern?

(For example, the pull up voltage leaks out to Vcc pin.)

Regards,

Kanemaru

over 7 years ago

0 Malik Barton57 over 7 years ago

TI__Guru 64326 points

Hideto,

TUSB1044 "FLIP/SCL" and "CTL0/SDA" pins are failsafe, so the situation you describe should be fine. Do make sure to have a pull up resistor (~4.7k) on these pins for current limiting purposes.

0 Hide over 7 years ago in reply to Malik Barton57

Guru 21045 points

Hi Malik-san,

Thank you for your prompt reply.

I understand. Thank you very much.

Regards,

Kanemaru

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TUSB1044: TUSB1044 - About “FLIP/SCL” and “CTL0/SDA” pin at Vcc =0V