NCL30188: Power Factor Corrected Quasi-Resonant Primary Side Current Mode Controller for LED Lighting

The NCL30188 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 device is specifically intended for very compact, space efficient designs.

Features
  • Constant Current Control with Primary Side Feedback
  • Precise Current Regulation Accuracy
  • Power Factor Correction with low harmonic distortion
  • Line Feedforward for Enhanced Regulation Accuracy
  • Wide Vcc operating range
  • User Programmable Thermal Foldback
  • Latched and Auto-recoverable versions
  • Secondary Diode Short Protection
  • VCC Undervoltage and overvoltage protection
  • Open and Shorted LED Protection
Benefits
  • No Optocoupler or secondary control circuitry required
  • No need for binning of LEDs or production trimming for accuracy
  • Exceeds industry requirements for lighting
  • Supports universal mains applications
  • Simplifies support for range of LED forward voltages
  • Protects LED Driver from overheating in severe situations
  • Flexiblity for fault handling
  • Avoids overheating in fault condition
  • Robust fault handling
  • Robust fault handling of common LED system faults
Applications
  • Integral LED Bulbs
  • Integrated LED Drive Electronics
  • LED Light Engines
  • LED Driver Power Supplies
End Products
  • LED Bulbs
  • LED Power Supply Drivers
  • LED Light Engines
  • LED Tubes
  • Electronic Control Gear for LED Systems
Application Notes (1)
Document TitleDocument ID/SizeRevisionRevision Date
4 Key Steps to Design a NCL30188-Controlled LED DriverAND9451/D (674kB)0Jun, 2016
Package Drawings (1)
Document TitleDocument ID/SizeRevision
SOIC-8 Narrow Body751-07 (62.6kB)AK
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
Power Factor Corrected Quasi-Resonant Primary Side Current-Mode ControllerNCL30188/D (375kB)0Mar, 2016
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
NCL30188ADR2GActivePb-free Halide freeSOIC-8751-073Tape and Reel2500$0.3893
NCL30188BDR2GActivePb-free Halide freeSOIC-8751-073Tape and Reel2500$0.3893
Specifications
ProductTopologyVI Min (V)VI Max (V)VO Max (V)IO Max (mA)fSW Typ (kHz)
NCL30188ADR2GStep-Up/Step-Down9.4262003000Up to 150
NCL30188BDR2GStep-Up/Step-Down9.4262003000Up to 150
Power Factor Corrected Quasi-Resonant Primary Side Current-Mode Controller (375kB) NCL30188
4 Key Steps to Design a NCL30188-Controlled LED Driver NCL30188
SOIC-8 Narrow Body CM1216