Analog/Digital Dimmable Power Factor Corrected Quasi-Resonant PrimarySide Current-Mode Controller for LED Lighting

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Overview

The NCL30086BH is a controller targeting isolated andnon−isolated “smart−dimmable” constant−current LED drivers.Designed to support flyback, buck−boost, and SEPIC topologies, itsproprietary current−control algorithm provides near−unity powerfactor and tightly regulates a constant LED current from the primaryside, thus eliminating the need for a secondary−side feedback circuitryor an optocoupler.Housed in the SOIC10 which has the same body size as a standardSOIC8, the NCL30086BH is specifically intended for very compactspace−efficient designs. The device is highly integrated with aminimum number of external components. A robust suite of safetyprotections is built in to simplify the design. To ensure reliableoperation at elevated temperatures, a user configurable currentfoldback circuit is also provided. In addition, it supports analog andPWM dimming with a dedicated dimming input intended to controlthe average LED current.Pin−to−pin compatible to the NCL30086, the NCL30086BHprovides the same benefits with in addition, an increased resolution ofthe digital current−control algorithm for a 75% reduction in the LEDcurrent quantization ripple.

  • Integrated LED Drive Electronics
  • LED Driver
  • Open Frame LED Driver
  • LED Bulbs and Tubes
  • LED Light Engines
  • Electronic Control Gear for LED Systems
  • LED Driver Power Supplies and Adapters
  • Constant Current Control with Primary Side Feedback
  • Power factor correction with low harmonic distortion
  • Precise Current Regulation Accuracy
  • Line feedforward for enhanced regulation accuracy
  • Wide Vcc operating range
  • User Programmable Thermal Foldback
  • Open and Shorted LED/Output Diode Protection
  • Wide temperature range of -40 to 125 °C
  • Dedicated Analog/Digital Dimming control
  • VCC Undervoltage and overvoltage protection

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NCL30086BHDR2G

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Active

CAD Model

Pb

A

H

P

SOIC-10 NB

1

260

REEL

2500

Y

Step-Up/Step-Down/SEPIC

9.4

26

200

3000

Up to 150

$0.4561

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