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RM48Lx40 PWM and Trip Zones

Eric R.
Intellectual 290 points

Does the RM48Lx40 provide PWM outputs with deadband?

Does the RM48Lx40 have "Trip Zones" (like the tmw320f28035) that can be used to turn off the PWM outputs?

 

  • 0
    TI__Mastermind 49120 points

    Eric,

    Sorry for the delay in answering: the RM48Lx40 does not have dedicated hardware implemented for generating a deadband for the PWM outputs. However, the NHET program can be written to create a deadband.

    Also, there is a single separate trip-zone input for each of the two NHET modules. GIOA[5] is used for disabling NHET1 outputs, and GIOB[2] is used for disabling NHET2 outputs. These are required to be active-low inputs. This functionality is described on page 125 of the RM48Lx40 datasheet (SPNS175).

    Regards, Sunil