Hi team:
There are some doubts about UCD9248.
1) UCD9248 has DPWM outputs. Is DPWM-1A necessarily the same as DPWM-1B? Are their phases related? Does DPWM-1A and DPWM-2A have independent frequencies?
2) Datasheet Page 12 “The UCD9248 contains four fusion power peripherals (FPP). Each FPP can be configured to regulate up to four DC/DC converter outputs.” This sentence means that the UCD9248 has 4 control channels. Each control channel can carry up to 4 power stages. For example, DPWM-1A and DPWM-1B are the output of one control channel, each with two power stages, for a total of four.
I guess my understanding is wrong. Can you draw a sketch to show me the exact meaning of this sentence?
3) Page 12:"The UCD9248 can control up to four rails, each of which can comprise a programmable number of power stages."
My understanding is that each power channel can be made up of several power stages. For example, in Figure 4 on page 9, the first rail has eight power stages. Is this understanding correct?
Thank you