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Home » NEWEST Products » New by Manufacturer » ON Semiconductor » NCP1255 Current Mode PWM Controller - ON Semi
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ON Semiconductor NCP1255 Current Mode PWM Controller

ON Semiconductor NCP1255 Current Mode PWM Controller

ON Semiconductor's NCP1255 Current Mode PWM Controller is a highly integrated PWM controller capable of delivering a rugged and high performance offline power supply in a SOIC-8 package. With a supply range up to 35V, the controller hosts a jittered 65kHz switching circuitry operated in peak current mode control. When the power on the secondary side starts to decrease, the controller automatically folds back its switching frequency down to a minimum level of 26kHz. As the power further goes down, the part enters skip cycle while freezing the peak current set-point.

View Associated Evaluation Board

Features
  • 65kHz Fixed Frequency Current Mode control with 130 kHz frequency excursion
  • Internal and adjustable Over Power Protection (OPP) circuit
  • Frequency Foldback down to 26 kHz and Skip-cycle in light load conditions
  • Timer-based Auto-recovery Overload/Short-circuit pro-tection with 100% to 25% timer reduction for short-circuit faults
  • Frequency Jittering in Normal and Frequency Foldback Modes

  • Latch input
  • Double VCC hiccup in fault mode
  • Adjustable Brown-Out Protection


Applications
  • AC-DC Converters
  • Printer Power Supplies
  • Notebook Adapters
Application Diagram
Application Diagram
  • ON Semiconductor
  • Power Management
  • Semiconductors|Integrated Circuits|IC-Power Management