onsemi

NCL2801 Current Mode CrM Power Factor Controllers

onsemi's NCL2801 controller's efficiency and standby power are enhanced with the VCFF method

Image of onsemi's NCL2801 Current Mode CrM Power Factor ControllersThe NCL2801 current mode critical conduction mode (CrM) power factor controllers can provide THD performance over extended operating range utilizing onsemi's THD enhancer technique. Efficiency and standby power are enhanced with valley count frequency fold-back (VCFF) method.

The NCL2801LED1GEVB evaluation board is configured as a 200 W power factor corrector front-end suitable for conditioning the input power of various switch-mode power supplies. This board provides high power factor and low total harmonic distortion of input current over the extended input voltage range and very wide output load range. Performance exceeds requirements for many demanding applications, including LED lighting, computing power, and white goods products.

Features
  • Valley count frequency foldback
  • Dynamic response enhancer
  • Soft/fast OVP
  • THD enhancer
  • Line level feed-forward
  • Wide VCC (10.5 V to 28 V) range/3 VCC startup level
  • OTA error amp
  • Protections:
    • Brownout
      • Thermal shutdown
      • OVP
      • Overcurrent limitation
      • Pin open/short protection
Benefits
  • Maximize efficiency over a wide load range
  • Easy loop design and lower power loss by higher RFB
  • Lower output undershoot
  • Lower output overshoot
  • Improve THD performance
  • Optimal loop gain in universal input
  • High system reliability
  • Design flexibility
Applications
  • Lighting ballasts (LED, fluorescent)
  • Flat TVs
  • PC power supplies
  • All offline appliances requiring power factor correction

NCL2801 Current Mode CrM Power Factor Controllers

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
IC PFC CTRLR CRM/DCM 8SOICNCL2801CDADR2GIC PFC CTRLR CRM/DCM 8SOIC1361 - Immediate$1,127.00View Details
IC PFC CTRLR CRM/DCM 8SOICNCL2801CDBDR2GIC PFC CTRLR CRM/DCM 8SOIC4934 - Immediate$1,127.00View Details
IC PFC CTRLR CRM/DCM 8SOICNCL2801CFADR2GIC PFC CTRLR CRM/DCM 8SOIC3738 - Immediate$1,127.00View Details

Evaluation Board

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
EVAL BOARD FOR NCL2801LED1NCL2801LED1GEVBEVAL BOARD FOR NCL2801LED13 - Immediate$321,745.00View Details
Published: 2019-08-06