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  • TI Thinks Resolved

LP873220-Q1: how to program the OTP memory

Prodigy 80 points
YiQin Chen

Replies: 2

Views: 193

Part Number: LP873220-Q1

thanks.

Prodigy 80 points
YiQin Chen
  • Expert 6290 points
    Krishnamurthy Hegde
    Hi,

    As far I know, OTP is factory programmed by TI and customers cannot change the OTP on their own. If you need different OTP settings, please contact local TI field team and they will be able to help you.

    However, i have forwarded this request to this device expert and he will add his comments if my above statement is not true.

    Regards,

    Murthy

    Find the right power solution for your processor or FPGA. Visit www.ti.com/SoCPower today!

  • Genius 16030 points
    Karl Wallinger

    In reply to Krishnamurthy Hegde:

    Hi YiQin,

    Murthy is correct, the OTP is programmed at TI factory, and cannot be programmed in the application.

    However, if you have a microcontroller connected to I2C, the device can accept I2C commands before EN is set high. In this case, the microcontroller can set the voltage and sequence settings, then set EN high to use those new settings. These registers are reset to their OTP-default value at POR, so you would just need to make sure these are set at every power cycle.

    Regards,
    Karl

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