PMP30435 Reference Design

Texas Instruments

156-VAC - 440-VAC input magnetically resistant anti-tamper flyback reference design


This offline flyback reference design uses the UCC28740 controller to generate an isolated output (12 V at 1 A) from a wide AC input (156 VAC - 440 VAC). The design was developed to be resistant to large magnetic fields (200mT) near the transformer. The transformer: the frequency and modulation modes were optimized for improved magnetic resistance.

  • 156 VAC - 440 VAC input to an isolated outputImmune to DC magnetic tampering up to an external magnetic field of 200mTSendust Core Transformer and low switching frequency improve magnetic resistance
  • Electricity meter
Product Categories
  • Power management