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

Datasheet: Dimmable Quasi-Resonant Primary Side Current-Mode Controller for LED Lighting with Thermal Fold-back
Rev. 2 (387kB)
Product Overview
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» Product Change Notification
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   Benefits
     
  • 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   End Products
  • Line Powered LED Drivers
  • Integral Driver Electronics
 
  • Integral LED Bulbs and downlights
  • LED Light Engines
  • Electronic Control Gear for LEDs
Evaluation/Development Tool Information
Product Status Compliance Short Description Action
NCL30083BB1GEVB Active
Pb-free
10 W / 200 mA Buck Boost Evaluation Board
NCL30083FLYGEVB Active
Pb-free
FLYBACK A19 10W/500MA 100
Availability & Samples
Specifications
Case Outlines
Application Diagram
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
NCL30083ADMR2G Lifetime
Pb-free
Halide free
NCL30083, and latching on faults Micro8™ 846A-02 1 260 Tape and Reel 4000 $0.4133
NCL30083BDMR2G Lifetime
Pb-free
Halide free
NCL30083, and all faults are auto-recoverable Micro8™ 846A-02 1 260 Tape and Reel 4000 $0.4133
NCL30083BDR2G Active
Pb-free
Halide free
NCL30083, all faults are auto-recoverable on SOIC-8 SOIC-8 751-07 3 260 Tape and Reel 2500 $0.3733
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : 4 to 8

Product
Description
Pricing ($/Unit)
Compliance
Status
Topology
VI Min (V)
VI Max (V)
VO Max (V)
IO Max (mA)
fSW Typ (kHz)
Package Type
NCL30083BDR2G  
 $0.3733 
Pb
H
 Active   
Flyback
9.4
26
300
3000
Up to 150
SOIC-8
Case Outlines
751-07    846A-02   
Packages
NCL30083: Step Dimmable Quasi-Resonant Primary Side Current-Mode Controller for LED Lighting with thermal foldback
NCL30083: Step Dimmable Quasi-Resonant Primary Side Current-Mode Controller for LED Lighting with thermal foldback
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