New Product Introduction

ON Semiconductor NCL3038x CC/CV single stage PSR

The NCL3038x is a power factor corrected flyback controller targeting isolated constant current LED drivers

ON Semiconductor  NCL3038x  product image

The NCL3038x is a power factor corrected flyback controller targeting isolated constant current LED drivers. The controller operates in a quasi-resonant mode to provide high efficiency. Thanks to a novel control method, the device is able to tightly regulate a constant LED current from the primary side. This removes the need for secondary side feedback circuitry, its biasing and for an optocoupler. The device is highly integrated with a minimum number of external components. A robust suite of safety protection is built in to simplify the design.

 

Key features

  • Integrated HV start up current source
  • Digital PSR CC loop control
  • Digital PSR CV loop control
  • Digital PFC loop algorithm

 

Additional features

Features:

  • Integrated HV start up current source
  • Digital PSR CC loop control
  • Digital PSR CV loop control
  • Digital PFC loop algorithm
  • Valley Lock out and Frequency Foldback
  • Secondary Diode and Output Short Protection
  • Open and Shorted LED Protection
  • VCC Undervoltage and overvoltage protection

 

Benefits:

  • Fast startup, Low standby power & Wide output operation range
  • Constant Brightness Regulation - <±2%
  • Good start up performance at cold temperature condition
  • Over 0.9 PF at half load 230 Vac and Under 10% THD at half load universal input
  • High efficiency at wide input and output range
  • Avoids overheating in fault condition
  • Robust fault handling of common LED system faults
  • Robust fault handling

 

Applications

  • Integral LED Bulbs
  • Integrated LED Drive Electronics
  • LED Light Engines
  • LED Driver Power supplies