NCL30051: Offline Controller, PFC and Half Bridge Resonant Mode, for LED Lighting

Description: The NCL30051 is a combination of a power factor co...
  • The NCL30051 is a combination of a power factor correction (PFC) and half-bridge resonant controller optimized for off-line LED lighting applications. The device integrates all the features needed to implement a hightly efficient and small form factor LED driver. It contains a critical conduction mode (CrM) fixed on time boost controller and a half-bridge resonant controller with a built-in 600 V high side gate driver. The half-bridge stage operates at a fixed frequency - greatly simplifying the control implementation. The output (current or voltage)regulation can be achieved by adjusting the PFC stage output voltage based on a feedback signal generated external to the controller. This device includes an enable input on the FFC feedback pin, PFC open feedback protection, and PFC overvoltage and undervoltage detectors. Other features included in the NCL30051 are a 600 V startup circuit and an adjustable frequency oscillator with a divide by 2 circuit to assure a balanced duty ratio. Controller sequencing is built-in simplying the system design.
  • Features
  • Voltage-mode CrM fixed on time PFC boost controller - Simple control scheme achieving high PF and low total harmonic distortion
  • PFC Open Feedback Loop Protection - Robust Fault Handling
  • Fixed Frequency Resonant Half-bridge Controller - High conversion efficiency with Zero Voltage Switching
  • 600 V High Side Gate Driver - Simplifies driving external MOSFETS
  • Up to 600 V Startup Circuit - Reduced parts count and simplified design
  • Half Bridge Disable input - Simplifies PWM dimming of the LEDs
  • PFC Bulk Undervoltage and Overvoltage Detectors - Robust Fault Handling
  • Applications
  • High Efficiency LED Drivers and Power Supplies
  • Lighting Electronic Control Gear
  • Light Ballasts
  • End Products
  • LED Wall Packs and Wall Washers
  • High Performance Outdoor LED Fixtures
  • Low Bay LED Luminaires
  • High Power LED Spot Lighting
  • Technical Documentation & Design Resources
    Evaluation/Development Tool Information
    Product Change Notification
    Availability and Samples
  • Status: Active
  • Compliance: Pb-free Halide free 
  • Description: Offline Controller, PFC and Half Bridge Resonant Mode, for LED Lighting
  • Package Type: SOIC-16
  • Package Case Outline: 751B-05
  • MSL: 1
  • Container Type: REEL
  • Container Qty: 2500
  • Packages
  • Topology: Half-Bridge 
  • VI Min (V): 16.3 
  • VI Max (V): 600 
  • VO Max (V): 150 
  • IO Max (mA): 3000 
  • fSW Typ (kHz): Variable 
  • Package Type: SOIC-16 
  • ON Semiconductor Full Web Site