• State TI Thinks Resolved
  • Locked Locked
  • Replies 3 replies
  • Answers 1 answer
  • Subscribers 63 subscribers
  • Views 436 views
  • Users 0 members are here
Support feedback
Options
Options
Related

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.

LP8556: EPROM Programming and Inductor selection

Tony S
Prodigy 20 points
Part Number: LP8556

Hello,

I have a few questions that I need help answering.

1. Can TI pre-program the EPROM on the LP8556 for orders >2500? If it is possible, what information would need to be provided?

2. What are some suggested inductor part numbers for the LP8556? The one used in the evaluation board isn't suited for us. Specifically we would be interested in the best core material to use with this device.

Thanks for your help,

Tony

  • 0
    TI__Expert 4550 points
    Hi Tony,
    LP8556 supports I2C interface, you could program it by I2C,
    The inductor is selected by real application, both electrical requirement and mechanical requirement. There are lots of good inductor venders to choose, such as Wurth, TDK.....
  • 0 in reply to Caryss Li
    Prodigy 20 points
    Hello Caryss,

    Thanks for your reply

    I understand that the device is I2C, but we want to avoid having to program each device and avoid using I2C as a means of control. We want to use the device in standalone operation, and we need to have the EPROM programmed for this. Do you know if the EPROMS can be programmed by the factory? The eval board suggests that 6V must be applied to the VLDO in order to write to the EPROM, this complicates our design.

    As far as inductors go I was just asking about a recommended core type for low current loads <100mA for this device (composite, powdered metal, etc) that would have less losses.

    Thanks,

    Tony
  • 0 in reply to Tony S
    TI__Expert 4550 points
    Hi Tony,
    All we pre-programmed EPROM versions have been shown on datasheet.
    as for the inductorn, metal powder is normally used.