AC-DC LED驱动器 | NCL30086BH
概览
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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