• State
  • Locked Locked
  • Replies 3 replies
  • Subscribers 63 subscribers
  • Views 481 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TPS61280 programming

Edoardo Testolin
Prodigy 100 points
Other Parts Discussed in Thread: TPS61280

Hi, I'm interested in using TPS61280 in standalone mode, without a microcontroller. So I need to configure the ic via I2C bus during production and save parameters (output voltage, etc) into eeprom. After leave production, can I put sda & scl pins wired to ground through resistors?

  • 0
    TI__Mastermind 46905 points

    Yes, you can do that.

    thanks

    jasper

  • 0 in reply to Jasper Li
    Prodigy 245 points

    Jasper,

    I have a question not associated with the programming of tps61280, but with its bypass mode. Could it conduct current in the opposite direction in a bypass mode? For example to charge the battery, allowing current from the host side through the bypass switch?

    In general, is there a TI device that could be used for a boost circuit as a part of the battery, connected to the system by two terminals (+B) and (-B) and be able to work in a bi-directional mode. If my understanding of tps61280 modes of operation is correct, if the output is set to 3.6V, when the battery voltage is higher than 3.6V it will bypass it to the system, when the battery voltage is below 3.6V it will boost to 3.6V at the system side. The third mode, which is not defined in the datasheet is system voltage higher than 3.6V, i.e. charger connected - what happens then, would the bypass switch allow reverse current? 

    Regards,

    Peter

  • 0 in reply to Peter Marinov
    TI__Mastermind 46905 points

    HI Peter

    the current of the device will conduct opposite direction in bypass mode if Vout is higher than Vin.

    could you share some detail about you application information?

    thanks

    jasper li