US Line (120VAC +/- 15%) Input: 12V/850mA Output Bias Supply Reference Design
Description
The PMP20421 is a low cost bias supply reference design with 12V/850mA output from 120VAC input. This design uses BJT with UCC28722 primary-side regulation BJT controller and single layer PCB to reduce the overall BOM cost.
Features
120VAC nominal (102VAC to 138VAC) 50/60Hz input to 12V/850mA outputConduction EMI testedSingle layer PCB designFlyback with bipolar junction transistor (BJT) switchTest report available