PMP20421 Reference Design

Texas Instruments

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
Applications
  • Residential water heater
  • Heat pump
Product Categories
  • Power management