Part Number: UCC28881 Other Parts Discussed in Thread: UCC28910 , UCC28911 , PMP8583 , PMP9176 Hello,
Is there a trick to control UCC28881 turn on (300VDC) and off (100VDC) voltage without adding an independent circuit including high side switch upfront…
Pan,
PMP9176 is probably a slightly better design to use - it's designed for 9 V @ 120 mA, and it uses UCC28910 (lower cost).
For universal AC input (90-264 V ac), the biggest challenge for 5 V output will be the small duty cycle at high line. …
Such a wide input range is challenging. Does the design need to be able to deliver full power 12 W even at min 19 Vdc input?
A DCM-only or variable freq valley-switching/QR controller will be challenged due to the very wide duty cycle range.
A…
