LinkSwitch CV

Power Integrations' LinkSwitch-CV dramatically simplifies CV power supply design by eliminating an optocoupler and secondary control circuitry

LinkSwitch CV Power Integrations' LinkSwitch-CV dramatically simplifies CV power supply design with tight CV requirements by eliminating an optocoupler and secondary control circuitry. The device introduces a revolutionary control technique to provide very tight output voltage regulation, along with input voltage variations and temperature.

The device incorporates a 700 V power MOSFET, a novel On/Off control state machine, a high voltage switched current source for self biasing, frequency jittering, cycle-by-cycle current limit and hysteretic thermal shutdown circuitry onto a monolithic IC.

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
Safety Features
  • Auto-restart protection reduces delivered power by >95% for output short-circuit and all control loop faults (open and shorted components)
  • Hysteretic thermal shutdown: automatic recovery reduces power supply returns from the field
  • Meets HV creepage requirements between Drain and all other pins, both on the PCB and at the package
Applications
  • DVD/STB
  • Adapters
  • Standby and auxiliary supplies
  • Home appliances, white goods and consumer electronics
  • Industrial controls
Dramatically Simplifies CV Converters
  • Eliminates optocoupler and all secondary CV control circuitry
  • Eliminates bias winding supply: IC is self biasing

LinkSwitch CV

ImageManufacturer Part NumberDescriptionAvailable QuantityPrice
IC OFFLINE SWITCH FLYBACK 8DIPLNK623PGIC OFFLINE SWITCH FLYBACK 8DIP30148 - Immediate$0.83View Details
IC OFFLINE SWITCH FLYBACK 8SOLNK623DGIC OFFLINE SWITCH FLYBACK 8SO0 - ImmediateSee Page for PricingView Details
IC OFFLINE SWITCH FLYBACK 8SOLNK624DGIC OFFLINE SWITCH FLYBACK 8SO0 - ImmediateSee Page for PricingView Details
IC OFFLINE SWITCH FLYBACK 8DIPLNK625PGIC OFFLINE SWITCH FLYBACK 8DIP9862 - Immediate$0.93View Details
IC OFFLINE SWITCH FLYBACK 8SOLNK625DGIC OFFLINE SWITCH FLYBACK 8SO0 - ImmediateSee Page for PricingView Details
IC OFFLINE SWITCH FLYBACK 8DIPLNK626PGIC OFFLINE SWITCH FLYBACK 8DIP1128 - Immediate$0.97View Details
Published: 2008-12-12