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Home » NEWEST Products » New by Manufacturer » ON Semiconductor » ON Semiconductor NCP107x High-Voltage Switcher for Low Power Offline SMPS
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ON Semiconductor NCP107x High-Voltage Switchers for Low Power Offline SMPS

ON Semiconductor NCP107x High-Voltage
Switchers for Low Power Offline SMPS

ON Semiconductor's NCP107x High-Voltage Switchers for Low Power Offline SMPS integrate a fixed frequency current mode controller with a 700V MOSFET. Available in a PDIP−7 or SOT−223 package, the NCP107x offers a high level of integration, including soft−start, frequency−jittering, short−circuit protection, skip−cycle, a maximum peak current set point, ramp compensation, and a Dynamic Self−Supply. The NCP107x is quiet by nature: during nominal load operation, the part switches at one of the available frequencies (65, 100 or 130kHz). When the output power demand diminishes, the IC automatically enters frequency foldback mode and provides excellent efficiency at light loads.

Features
  • Built−in 700V MOSFET with RDS(on) of 11Ω
  • Large Creepage Distance Between High−voltage Pins
  • Current−Mode Fixed Frequency Operation - 65 / 100 / 130kHz (130kHz on demand only)
  • Fixed Ramp Compensation
  • Skip−Cycle Operation at Low Peak Currents Only: No Acoustic Noise!
  • Dynamic Self−Supply: No Need for an Auxiliary Winding
  • Internal 1ms Soft−Start
  • Auto−Recovery Output Short Circuit Protection with Timer−Based Detection
  • Auto−Recovery Overvoltage Protection with Auxiliary Winding Operation

  • Frequency Jittering for Better EMI Signature, Including Frequency Foldback Mode
  • No Load Input Consumption < 50mW
  • Frequency Foldback to Improve Efficiency at Light Load
  • Internal Temperature Shutdown
  • These are Pb−Free Devices

Applications
  • Auxiliary Isolated Power Supplies
  • Standby Isolated Power Supplies
  • White Goods
  • Smart Meter
  • E−Meter
Part Number Package / Case Switching Frequency Output Current Data Sheet





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  • ON Semiconductor
  • Power Management
  • Semiconductors|Integrated Circuits|IC-Power Management