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TPSM846C23: Pre-programming TI Power component TPSM846C23MOLR

Anshu Kumar1
Prodigy 10 points
Part Number: TPSM846C23
I had a question on the following TI part:TPSM846C23MOLR
I am reading  the Vout needs to be programmed using the PMBus. Do you know if we can get this part pre-programmed and change the voltage later? Thanks!
-Anshu
  • 0
    TI__Guru 56865 points

     

    TI does not provide custom programming services with different default output voltages for the TPSM846C23.

    For applications that will not use standard ULINEAR16 formatting of VOUT_COMMAND, the initial output voltage and be set by placing a resistor from FB to GND using the default 0.5V reference voltage to set the initial output voltage using the equation:

    Rbias = 10k ( Vout / 0.5V - 1)

    This will change the scaling of VOUT_COMMAND from 2^-9V (1.953mV/LSB) to (1+10k/Rbias) * 2^-9V/LSB

    Alternately, VOUT_COMMAND can be reprogrammed, either as a discrete module, or after assembly, and the updated VOUT_COMMAND value can be stored to NVM using the STORE_DEFAULT_ALL PMBus command.