NCL30085: AC-DC Power Factor Corrected 3 Step Dimmable Quasi-Resonant Primary Side Current Mode Controller for LED Lighting

Description: The NCL30085 is an AC-DC power factor corrected fl...
  • The NCL30085 is an AC-DC power factor corrected flyback controller targeting isolated and non−isolated buck-boost/SEPIC constant current LED drivers. The controller operates in a quasi−resonant mode to provide optimal 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, biasing and 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. This controller has integrated 3 step log dimming which allows an LED bulb or luminaire to be dimming from a standard wall switch. In addition to steps of 70% and 25% which are similar to a traditional 3 way lamp, one additional step of 5% current is included to support deep dimming applications.
  • Features
  • Constant Current Control with Primary Side Feedback - No optocoupler or secondary control circuitry required
  • Precise Current Regulation Accuracy - No need for binning of LEDs or production trimming for accuracy
  • Power Factor Correction with low harmonic distortion - Exceeds industry requirements for lighting
  • 3 dimmable steps of 70%, 25%, and 5% of full current - Energy saving dimming with standard wall switch
  • Line Feedforward for Enhanced Regulation Accuracy - Supports accurate regulation for universal mains applications
  • Wide Vcc operating range - Simplifies support for a broad range of LED forward voltages with one magnetic design
  • User Programmable Thermal Foldback - Protects LED driver from overheating in severe situations
  • Output LED open and short protection - Robust fault handling of common LED system faults
  • Secondary Diode Short Protection - Avoids overheating in fault condition
  • VCC undervoltage and overvoltage protection - Robust fault handling
  • Wide Temperature range of -40 to 125 °C - Supports outdoor and high temperature environments
  • Auto-recoverable (B-version) and Latched (A-version) fault handling options
  • Applications
  • Integrated LED Driver Electronics
  • End Products
  • LED Bulbs
  • LED Driver Power Supplies
  • LED Light Engines
  • LED Tubes
  • Electronic Control Gear for LED Systems
  • Technical Documentation & Design Resources
    Evaluation/Development Tool Information
    Availability and Samples
    NCL30085BDR2G
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: AC-DC Power Factor Corrected 3 Step Dimmable Quasi-Resonant Primary Side Current Mode Controller for LED Lighting, with auto-recoverable fault handling
  • Package Type: SOIC-8
  • Package Case Outline: 751-07
  • MSL: 3
  • Container Type: REEL
  • Container Qty: 2500
  • Inventory

  • Market Leadtime (weeks):Contact Factory
  • Arrow:0
  • Mouser:>1K
  • ON Semiconductor:12,500
  • Specifications
  • Topology: Step-Up/Step-Down  Flyback 
  • VI Min (V): 9.4 
  • VI Max (V): 26 
  • VO Max (V): 200 
  • IO Max (mA): 3000 
  • fSW Typ (kHz): Up to 150 
  • Package Type: SOIC-8 
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