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LP8758-E0: I2C controls and How To write OTP Memory

user4898053
Prodigy 20 points
Part Number: LP8758-E0

Hello,

I can read and write to registers.

Is it required any load? I just testing no load environment.

Also, I am locking for how to write OPT memory which inside LP8578-E0.

Otherwise, it can not use for my system.

Thanks,

  • 0
    TI__Genius 11020 points
    Hello,

    You can control the user registers and configuration with the I2C register writes. For example you can set the output voltages and define the startup sequence before turning on the bucks. Once the power to the device is shut down or NRST is set low the values will be reset. The default values for the registers during power up comes from the OTP, which is TI factory programmed. So it is programmed only once at TI factory, and it cannot be programmed again by customer.

    You can test the outputs without load, that is ok.

    Hope this helps.

    Thanks.

    Best regards,
    Tomi Koskela
  • 0 in reply to Tomi Koskela
    Prodigy 20 points

    Thank you very much,

    It is clear answer for me.