LP8860-Q1: About pin setting

Koji Hayashi92

Mastermind 7020 points

Part Number: LP8860-Q1

Hi All,

We will create a board for initial writing to NVM.

Are unused pins not a problem with floating ?

I saw http://www.tij.co.jp/jp/lit/an/snva797/snva797.pdf.

Best Regards,
Koji Hayashi

over 6 years ago

0 Shirley He over 6 years ago

TI__Expert 5475 points

Hi Koji-san,

Which pins do you mean? For different pins, we have different requirements. You can refer to the pin functions table in the datasheet.

0 Koji Hayashi92 over 6 years ago in reply to Shirley He

Mastermind 7020 points

Hi Shirley-san

Thank you for response.

I attached the pin function list.

The unknown is left blank.

For example, VSENSE_N

I will write in I2C.

Please tell me the connection between the blank parts.

I think there is no need to boost operation.

Therefore I think that FET and coil are not necessary.

Pin setting.xlsx

Best Regards,
Koji Hayashi

0 Koji Hayashi92 over 6 years ago in reply to Koji Hayashi92

Mastermind 7020 points

Hi Shirley-san

Please let me know if you need more information concerning this matter.

Best Regards,

Koji Hayashi

0 Shirley He over 6 years ago in reply to Koji Hayashi92

TI__Expert 5475 points

Hi Koji-san,

For LP8860 end-of-line programming, there's no need to make the boost work, so you can just connect VSENSE_P and VSENSE_N to ground. For other unclear pins, you can just leave them floating.

0 Koji Hayashi92 over 6 years ago in reply to Shirley He

Mastermind 7020 points

Hi Shirley-san

Thank you for response.

I understand.

Best Regards,
Koji Hayahashi

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LP8860-Q1: About pin setting