The LNK625DG is an energy-efficient Off-Line Switcher IC with accurate primary-side constant-voltage control. It is dramatically simplifies low power, constant voltage 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. LinkSwitch-CV provides excellent cross-regulation for multiple-output flyback applications. A 700V power MOSFET and ON/OFF control state machine, self-biasing and frequency jittering, cycle-by-cycle current limit and hysteretic thermal shutdown circuitry are all incorporated onto one IC.
Compensates for external component temperature variations
Very tight IC parameter tolerances using proprietary trimming technology
Continuous and/or discontinuous mode operation for design flexibility
Hysteretic thermal shutdown - Automatic recovery reduces power supply returns from the field
No primary or secondary current sense resistors - maximizes efficiency
(EN)
