NCL30095: LED Driver, AC-DC Power Factor Corrected Boost Switching Regulator, Integrated HV MOSFET, Triac Dimmable, Thermal Foldback

Description: The NCL30095A high power factor boost PWM switchin...
  • The NCL30095A high power factor boost PWM switching regulator is designed to regulate the average current through a string of LEDs. The circuit operates in Critical Conduction Mode (CrM) based on a proven constant on-time control scheme to achieve near unity power factor. In addition to regulating a constant current, the switching regulator is optimized to support leading and trailing edge phase dimming applications. When a dimmer is detected on the AC input, an internal voltage reference of the current regulation loop adjusts the current level based on the dimmer conduction angle so the current through the LED string has a desired value based on a programmed dimming curve. The shape of the dimming curve is intended to emulate the response of an incandescent bulb while achieving NEMA SSL6 and NEMA SSL7A recommendations. An integrated HV MOSFET in a cascoded configuration supports biasing the controller during operation and eliminates the need for an auxiliary winding to provide bias power. A robust suite of protection features are included to ensure proper handling of expected fault conditions without the need for extra circuitry and a dedicated thermal fold-back input proves gradually reduction of the current above a user defined set-point.
  • Features
  • Near-unity Power Factor - Exceeds industry requirements for lighting
  • Critical conduction Mode (CrM) - Improves overall efficiency
  • Constant on-time control - Near ideal power factor
  • Accurate current regulation (+/- 2% typical) - No need for binning of LEDs or production trimming for accuracy
  • Compatible with leading and trailing edge phase controlled dimmers - Stable operation with all types of TRIAC line dimmers
  • Cascoded configuration - Fast startup time (< 100 ms typical)
  • Open and Shorted LED/Output Diode Protection - Enhanced fault handling
  • User programmable thermal current fold-back - Protects LED driver from overheating under severe conditions
  • Cycle- by- cycle current limiting - Robust fault handling
  • Wide Temperature range of -40 to 125 °C - Suports outdoor and high temperature environments
  • Integrated HV MOSFET
  • Applications
  • Integrated LED Drive Electronics
  • End Products
  • LED Bulbs
  • LED Downlights
  • LED Light Engines
  • LED Modules
  • Technical Documentation & Design Resources
    Availability and Samples
    NCL30095ADR2G
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: LED Driver, AC-DC Power Factor Corrected Boost Switching Regulator, Integrated HV MOSFET, Triac Dimmable, Thermal Foldback, AC-DC Power Factor Corrected LED Boost Switching Regulator, Integrated HV MOSFET, Triac Dimmable, Thermal Foldback
  • Package Type: SOIC-14 NB Less Pin 4
  • Package Case Outline: 751DY
  • MSL: 3
  • Container Type: REEL
  • Container Qty: 2500
  • Specifications
  • Topology: Step-Up 
  • VI Min (V): 30 
  • VI Max (V): 380 
  • VO Max (V): Step up 
  • IO Max (mA): 500 
  • fSW Typ (kHz): Variable 
  • Package Type: SOIC-14 NB Less Pin 4 
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