Hi,
Q1, UCC2891 VIN needs minimum 18V to start, if not using VIN, but VDD, it is minimum 13.2V. So for 9V input, you need to add external circuit to make UCC2891 to start
Q2, UCC2800, or UCC28C50
Q3, yes, or use TINA TI.
Hi Hailey,
Any PWM controller can be used to make a boost or inverting boost converter. See the following application note ( SNVA856B ) on how this is done. The UCC28C50 might be a good solution to make this happen. Without a transformer-based solution…
Hi Aki,
It looks like you need two power supplies followed by an OR'ing controller to support this. The BSR team has several Flyback/SEPIC controllers that might do the job. Our general-purpose PWM the UCC28C50 might also be an option.
Can you confirm…
