PMP40487 Reference Design

Texas Instruments

AC Input: 5-V/1-A and 5-V/1-A dual-output flyback reference design


This design is auxiliary power supply with 5-V/1-A and 5-V/1-A dual output. The line and load regulation of the power supply is designed to be within 1% using the secondary side regulator: UCC28742. The system's reliability is improved through input UVLO and output OVP: OCP: SCP. The four point's load (25%: 50%:75%: 100%) average efficiency is above 81%. 

  • DCM valley-switching operation enable high efficiency at light load and better EMI performanceUp to 1% line and load regulation enable  output voltage high accuracy requirementAverage efficiency above 81% simplifies the thermal design
  • Appliances: battery charger
  • Substation automation
Product Categories
  • Power management