PMP9594 Reference Design

Texas Instruments

85-265VACin: 5V/1.5A AC/DC USB Charger with Auto-Detect based on PSR Flyback with BJT Switch


This reference design provides an isolated 5V/1.5A output from a universal 85-265VAC input with an efficiency greater than 78%. Employing the UCC28722 Primary Side Regulation (PSR) Flyback controller which helps to eliminate the opto-coupler and secondary side regulation components: this design delivers additional cost savings by employing a bipolar power switch. Additionally: the design features the TPS2511 USB Dedicated Charging Port Controller and Current Limiting Power Switch to safely charge most smart phones and tablets. The energy saving features of the UCC28722 allow this design to consume less than 50mW when plugged into the wall with no device attached to the USB port.

  • Greater than 78% efficiency at full load (5V/1.5A) Less than 50mW of stand-by power consumption under no load Constant Current regulation feature of UCC28722 ensures output short-circuit protection Auto detect feature of TPS2511 monitors USB Data line enabling charging of compliant USB devices Programmable current limiting function of TPS2511 delivers additional layer of protection Fast Start-up
  • Appliances: battery charger
  • Drone accessories
Product Categories
  • Power management


Part Number Name Companion Part
TPS2511 TPS2511 Buy Datasheet
UCC28722 UCC28722 Buy Datasheet

Bill Of Materials

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Test Data

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Other Documents

Title Updated Type Size (KB)
PMP9594 PCB 10 Oct 2014 PDF 198
PMP9594 Assembly Drawing 10 Oct 2014 PDF 59
PMP9594 BOM 10 Oct 2014 PDF 81
PMP9594 Schematic 10 Oct 2014 PDF 122