ROHM Semiconductor BD7J200 Isolated Flyback Converter IC

ROHM Semiconductor BD7J200 Isolated Flyback Converter IC offers long-term support for industrial use. The ROHM Semiconductor BD7J200 IC has an optocoupler-less isolated flyback converter, eliminating optocouplers and feedback circuits. Using original technology for controlling on-time reduces the need for external phase compensation parts, minimizing components and simplifying designs for high-reliability isolated power supplies.

Features

  • Long-time support product for industrial applications
  • No need for any optocoupler and third winding of a transformer
  • Set output voltage with two external resistors and ratio of transformer turns
  • Adopt original adapted type technology that controls on-time
  • No need for external phase compensation parts by high-speed load response
  • Low output ripple by fixed switching frequency (at normal operation)
  • High efficient light load mode (at PFM operation)
  • Shutdown and Enable Control
  • Built-in 120V switching MOSFET
  • Soft-start function
  • Load compensation function
  • Various protection function
    • Input Under Voltage Lockout (VIN UVLO)
    • Over Current Protection (OCP)
    • Over Voltage Protection (OVP)
    • Short Circuit Protection (SCP)
    • Thermal Shutdown (TSD)
    • Battery Short Protection (BSP)
  • Applications include isolated power supplies for industrial equipment

Typical Application Circuit

Application Circuit Diagram - ROHM Semiconductor BD7J200 Isolated Flyback Converter IC
Published: 2024-06-14 | Updated: 2024-06-20