PMP21927 Reference Design

Texas Instruments

15-W multi-output off-line flyback reference design

Description

This reference design takes a universal Vac input and creates three isolated 15-Vdc outputs. The main output can be loaded up to 1-A and achieves over 86% efficiency. The other isolated 15-V outputs can be loaded to 50-mA. These outputs have linear regulators to keep the voltages within 1% regardless of cross-loading conditions.

Features
  • Primary side regulated flyback to create multiple isolated outputsLow profile >20mm design3% accuracy on 1-A output: 1% accuracy on 50-mA outputs
Applications
  • Digital multimeter (DMM)
  • Lab & field Instrumentation
  • Laser distance meter
  • Appliances: battery charger
Product Categories
  • Power management