TUSB320 Dead Battery Mode

daniel

Genius 5095 points

Other Parts Discussed in Thread: TUSB320

Hi,

When shutdown the device, the VDD is off. So TUSB320 enter Dead Battery Mode.

Should we rewrite address 0x45 every time we turn on the device?

1. Write a 0x04 to I2C address 0x45.
2. Wait 30ms.
3. Write a 0x00 to I2C address 0x45

Thanks

over 9 years ago

0 Diego Cortes over 9 years ago

TI__Mastermind 36085 points

Hello Daniel,

Why do you want to disable RP/RD?

Regards,
Diego.

0 daniel over 9 years ago in reply to Diego Cortes

Genius 5095 points

Hi Diego,

We don't want to disable RP/RD, but datasheet ask to do that.

We just want default setting(Normal operation). Should SW rewrite 0x45 when exit Dead Battery Mode ?

0 Diego Cortes over 9 years ago in reply to daniel

TI__Mastermind 36085 points

Hello Daniel,

Sorry for my previous comment, I got confused. Now taking back your question, the answer is yes, you must perform the sequence previously mentioned every time the device exits dead battery.

Regards,
Diego.

Interface

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TUSB320 Dead Battery Mode