LP8556: How to program internal EPROM

user1196684

Part Number: LP8556

I refer to the datasheet of LP8556(SNVS871M –JULY 2012–REVISED JUNE 2020).
Where is explained the procedure to program EPROM?(How can I write and erase EPROM?)Is this internal EPROM OTP?
Though it is written that LP8556TM*-E05/NOPB is for evaluation purposes only, must not we use that for mass production?

over 5 years ago

0 Yuting Shao over 5 years ago

TI__Genius 13001 points

Hi,

Pls. refer to section 8.5 where you can find how to read and write register in detail.

"Non-programmed" just means the device's EPROM has no default value, and you have to write it before application.

BR,

Robin

0 user1196684 over 5 years ago in reply to Yuting Shao

Prodigy 30 points

Hi,Robin.

Thank you very much for your reply!

You led me to find that the section 8.5 of datasheet is named "programing".
I'm sorry, but furthermore, let me ask a question only a little.

In this section,　I can find only the node 8.5.1(8.5.1.1-8.5.1.7) which provide I2c-compatible Serial Bus Interface.
I think that I may probably read/write internal register and read internal EPROM according to this protcol.
But by the same procedure, can I write EPROM?
For example, is it not necessary to erase EPROM or apply the voltage to a pin before I start I2C write cycle?
Not to worry?

Thank you.

Kei

0 Yuting Shao over 5 years ago in reply to user1196684

TI__Genius 13001 points

Hi Kei,

For burning the EPROM, pls. refer to below picture.

0 Yuting Shao over 5 years ago in reply to Yuting Shao

TI__Genius 13001 points

lp8556SQ EVM UserGuide.pdf

0 Yuting Shao over 5 years ago in reply to user1196684

TI__Genius 13001 points

Hi Kei,

Pls. refer to LP8556 userguide section 7.8.

BR,

Robin

0 user1196684 over 5 years ago in reply to Yuting Shao

Prodigy 30 points

Hi Robin.

Thank you very much!

I found documents named "LP8556TM-EVM User Guide" and "LP8556SQ-EVM".
Is these document you let me refer to?

I am sorry, because I think that these are evaluation board's manual,I have not read in detail.
I'll design our products with the reference of the document that you raised it.

Thank you.

Kei

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LP8556: How to program internal EPROM