NCL30002: LED Driver, Offline Buck, Power Factor Corrected

Datasheet: Power Factor Corrected Buck LED Driver
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Product Overview
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The NCL30002 is a switch mode power supply controller intended for low to medium power single stage power factor (PF) corrected LED Drivers. The device operates as a critical conduction mode(CrM) buck controller to regulate LED current at a high power factor for a specific line voltage range. The current limit threshold is tightly trimmed allowing open loop control techniques to reduce parts count while maintaining accurate current regulation and high power factor. CrM operation is particularly suited for LED applications as very high efficiency can be achieved even at low power levels. These are important in LED lighting to comply with regulatory requirements and meet overall system luminous efficacy requirements. In CrM, the switching frequency will vary with line and load. Switching losses are low as recovery losses in the output rectifier are negligible since the current goes to zero prior to reactivating the main MOSFET switch.
Features   Benefits
  • Low 485 mV Current Sense threshold
  • Lower power dissipation
  • Wide -40 to + 125 °C Temperature Range
  • Suitable for indoor and outdoor lighting applications
  • Low typical 24 µA startup current
  • Faster startup time with reduced power dissipation
  • Fixed On time/Peak Current Power Factor Correction Control Architecture
  • Maximum Vcc of 20 Vdc
  • 500 mA Source / 800 mA Sink MOSFET Gate Driver
  • ± 3.1% Current limit accuracy across complete temperature range
Applications   End Products
  • LED Bulbs
  • LED Downlights
  • Power Factor Corrected LED Drivers
  • LED Fluorescent Tube Replacements
  • High Efficiency LED Lighting
Evaluation/Development Tool Information
Product Status Compliance Short Description Action
120 V Dimmable HPF Buck Evaluation Board
Budgetary Price/Unit
Case Outline
NCL30002DR2G Last Shipments
Halide free
NCL30002 SOIC-8 751-07 1 260 Tape and Reel 2500  
Market Leadtime (weeks) : Contact Factory
Case Outlines
NCL30002: LED Driver, Offline Buck, Power Factor Corrected
NCL30002: LED Driver, Offline Buck, Power Factor Corrected
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120 V Dimmable HPF Buck Evaluation Board - NCL30002DIM1GEVB
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