NCL30083: Step Dimmable Quasi-Resonant Primary Side Current-Mode Controller for LED Lighting with thermal foldback

Description: The NCL30083 is a PWM current mode controller targ...
  • The NCL30083 is a PWM current mode controller targeting isolated flyback and non-isolated buck-boost constant current topologies. The controller operates in a quasi-resonant mode to provide high efficiency. Thanks to a novel control method, the device is able to precisely 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. The device supports 5 step log dimming down to 5%. To enhance system lifetime, it has current foldback at a user programmable temperature point. While the NCL30083 has integrated fixed overvoltage protection, the designer has the option to program a lower overvoltage protection level.
  • Features
  • Primary Side Sensing - No optocoupler or secondary control circuitry required
  • Wide VCC Range - Allows support for wide number of LEDs in string and simplifies transformer design
  • Precise LED Current Regulation of ±1% typical - No need for binning of LED forward voltage or trimming in production for accuracy
  • ~ 0.9 power factor with passive valley fill - Meets Energystar® LED Bulb and Residential Luminaire Standards
  • User Programmable Thermal Foldback - Protects system from overheating by gracefully reducing current
  • Open and Shorted Output Protection - Robust handling of faults
  • Secondary Diode Short Protection - Avoids overheating in fault conditions
  • 5 Step Dimmable to < 5% output current - Allows dimming with standard wall switch
  • VCC undervoltage and overvoltage protection - Reliable operation across all conditions
  • Latched (A version) and Auto-recoverable (B version) fault handling - Flexiblity in design
  • Wide temperature range of -40 to 125 °C - Supports outdoor and high temperature operating environments
  • Input Line Voltage Sensing - Enhanced regulation accuracy
  • Programmable Soft start - Improves startup behavior
  • Applications
  • Line Powered LED Drivers
  • Integral Driver Electronics
  • End Products
  • Integral LED Bulbs and downlights
  • LED Light Engines
  • Electronic Control Gear for LEDs
  • Technical Documentation & Design Resources
    Evaluation/Development Tool Information
    Availability and Samples
    NCL30083ADMR2G
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Step Dimmable Quasi-Resonant Primary Side Current-Mode Controller for LED Lighting with thermal foldback, and latching on faults
  • Package Type: Micro8™
  • Package Case Outline: 846A-02
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 4000
  • Inventory

  • Market Leadtime (weeks):2 to 4
  • Arrow:0
  • ON Semiconductor:12,000
  • NCL30083BDMR2G
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Step Dimmable Quasi-Resonant Primary Side Current-Mode Controller for LED Lighting with thermal foldback, and all faults are auto-recoverable
  • Package Type: Micro8™
  • Package Case Outline: 846A-02
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 4000
  • Inventory

  • Market Leadtime (weeks):2 to 4
  • Arrow:0
  • ON Semiconductor:12,000
  • NCL30083BDR2G
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Step Dimmable Quasi-Resonant Primary Side Current-Mode Controller for LED Lighting with thermal foldback, all faults are auto-recoverable on SOIC-8
  • Package Type: SOIC-8
  • Package Case Outline: 751-07
  • MSL: 3
  • Container Type: REEL
  • Container Qty: 2500
  • Inventory

  • Market Leadtime (weeks):2 to 4
  • Arrow:0
  • ON Semiconductor:17,500
  • Packages
    Applications
    Specifications
  • Topology: Flyback 
  • VI Min (V): 9.4 
  • VI Max (V): 26 
  • VO Max (V): 300 
  • IO Max (mA): 3000 
  • fSW Typ (kHz): Up to 150 
  • Package Type: Micro8™  SOIC-8 
  • ON Semiconductor Full Web Site