NCL30100 Fixed OFF-Time Buck LED Driver Controller

NCL30100 Fixed OFF-Time Buck LED Driver Controller

ON Semiconductor's NCL30100 is a compact switching regulator controller intended for space-constrained, constant current, high brightness LED driver applications where high efficiency and small size are important. The controller is based on a peak current, quasi-fixed OFF-time control architecture optimized for continuous conduction mode step-down (buck) operation. This allows the output filter capacitor to be eliminated. In this configuration, a reverse buck topology is used to control a cost effective N-channel MOSFET.

Features
  • Quasi−fixed OFF time, peak current control method
  • Up to >95% efficiency
  • No output capacitor needed
  • VCC operation from 6.35 V to 18 V
  • Adjustable current limit with negative sensing
  • N-FET based controller architecture 
  • Inherent open LED protected
  • Very low current consumption at startup
  • Undervoltage lockout
  • Compact thin TSOP-6 Pb-free package
  • Operating temperature range: -40°C to 125°C 
Applications
  • Low voltage halogen LED replacement (MR 16)
  • LED track lighting
  • Landscape lighting
  • Solar LED applications
  • Transportation lighting
  • 12 V LED bulb replacement
  • Outdoor area lighting
  • LED light bars

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