Off Line Switcher 7-Pin PDIP-C

The LinkSwitchTM-CV dramatically simplifies low power, constant voltage (CV) converter design through a revolutionary control technique which eliminates the need for both an optocoupler and secondary CV control circuitry while providing very tight output voltage regulation. The combination of proprietary IC trimming and E-Shield transformer construction techniques enables Clampless designs with the LinkSwitch-CV LNK623/4. LinkSwitch-CV provides excellent cross-regulation for multiple-output flyback applications such as DVDs and STBs. A 725 V power MOSFET and ON/OFF control state machine, self-biasing, frequency jittering, cycle-by-cycle current limit, and hysteretic thermal shutdown circuitry are all incorporated onto one IC.

• Output Power - Adapter : 10.5 W
• Output Power - Open Frame : 17 W
• Dramatically Simplifies CV Converters
• Eliminates optocoupler and all secondary CV control circuitry
• Eliminates bias winding supply – IC is self biasing
• Advanced Performance Features
• Compensates for external component temperature variations
• Very tight IC parameter tolerances using proprietary trimming technology
• Continuous and/or discontinuous mode operation for design flexibility
• Frequency jittering greatly reduces EMI filter cost
• Even tighter output tolerances achievable with external resistor selection/trimming
• Green Package
  • Halogen free and ROHS compliant package