NCP1336: Controller, Quasi-Resonant, Current Mode, with HV Start-Up

Description: The NCP1336 hosts a high-performance circuitry aim...
  • The NCP1336 hosts a high-performance circuitry aimed to powering quasi-resonant converters. Capitalizing on a novel valley-lockout system, the controller shifts gears and reduces the switching frequency as the power loading becomes lighter. This results in a stable operation despite switching events always occurring in the drain-source valley. This system works down to the 4th valley and toggles to a variable frequency mode beyond, ensuring an excellent standby power performance.
    The controller takes benefit of a high-voltage start-up current source to provide a quick and lossless power-on sequence. To improve the safety in overload situations, the controller includes an Over Power Protection circuit which clamps the delivered power at high-line. Safety-wise, an adjustable timer relies on the feedback voltage to detect a fault. On version B, this fault triggers a triple-hiccup on the VCC pin which naturally reduces the average input power drawn by the converter. On version A, when a fault is detected, the controller is latched-off.
    Particularly well suited for adapter applications, the controller features two latch inputs: one dedicated to Over Temperature protection (OTP) which offers an easy means to connect a pull-down temperature sensor like an NTC, and a second one more classical that can be used ot performa an accurate Over voltage Protection.
    Finally, a brownout pin whcih stops the circuit operation in presence of a low mains condition is included.
  • Features
  • Valley Switching Operation with Valley-Lockout - Improved efficiency with noise immunity
  • Loss-free Adjustable Over Power Protection - Limits the peak current according to input line voltage
  • Auto-recovery or Latched Short-Circuit Protection with adjustable timer - Versatile short circuit protection for improved reliability
  • Dedicated Overtemperature Protection Input - Allows direct connection to NTC for accurate OTP
  • Brown Out Protection - Protects against drops in input mains voltage
  • High voltage startup current source - Provides a quick and lossless power-on sequence
  • Applications
  • High Power Ac-Dc converters
  • End Products
  • Notebook Adapters
  • Flat TV SMPS
  • Technical Documentation & Design Resources
    Product Change Notification
    Availability and Samples
    NCP1336ADR2G
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Controller, Quasi-Resonant, Current Mode, with HV Start-Up
  • Package Type: SOIC-14 NB
  • Package Case Outline: 751AN
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 2500
  • Inventory

  • Market Leadtime (weeks):2 to 4
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  • ON Semiconductor:90,000
  • NCP1336BDR2G
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Controller, Quasi-Resonant, Current Mode, with HV Start-Up
  • Package Type: SOIC-14 NB
  • Package Case Outline: 751AN
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 2500
  • Inventory

  • Market Leadtime (weeks):2 to 4
  • Arrow:0
  • Digikey:>1K
  • FutureElectronics:>1K
  • Newark:>1K
  • Packages
    Applications
    Specifications
  • Topology: Flyback 
  • Control Mode: Current Mode 
  • fsw Typ (kHz): Variable 
  • Stand-by Mode: Yes 
  • UVLO (V): 9 - 15 
  • Short Circuit Protection: Yes 
  • Latch: Yes 
  • Soft Start: Yes 
  • VCC Max (V): 28 
  • Drive Cap. (mA): 500 / 800 
  • Package Type: SOIC-14 NB 
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