NCL30188中文资料Power Factor Corrected Quasi-Resonant Primary Side Current Mode Controller for LED Lighting数据手册ONSEMI规格书

描述 Description

The NCL30188 is an Ac-Dc power factor corrected flyback controller targeting isolated and non−isolated buck-boost/SEPIC constant current LED drivers. The controller operates in a quasi−resonant mode to provide optimal efficiency. Thanks to a novel control method, the device is able to tightly regulate a constant LED current from the primary side. This removes the need for secondary side feedback circuitry, biasing and an optocoupler.The device is highly integrated with a minimum number of external components. A robust suite of safety protection is built in to simplify the design. This device is specifically intended for very compact,
space efficient designs.

特性 Features

• Constant Current Control with Primary Side Feedback
• No Optocoupler or secondary control circuitry required
• Precise Current Regulation Accuracy
• No need for binning of LEDs or production trimming for accuracy
• Power Factor Correction with low harmonic distortion
• Exceeds industry requirements for lighting
• Line Feedforward for Enhanced Regulation Accuracy
• Supports universal mains applications
• Wide Vcc operating range
• Simplifies support for range of LED forward voltages
• User Programmable Thermal Foldback
• Protects LED Driver from overheating in severe situations
• Latched and Auto-recoverable versions
• Flexiblity for fault handling
• Secondary Diode Short Protection
• Avoids overheating in fault condition
• VCC Undervoltage and overvoltage protection
• Robust fault handling
• Open and Shorted LED Protection
• Robust fault handling of common LED system faults

应用 Application

• Integral LED Bulbs
• Integrated LED Drive Electronics
• LED Light Engines
• LED Driver Power Supplies
• LED Bulbs
• LED Power Supply Drivers
• LED Light Engines
• LED Tubes
• Electronic Control Gear for LED Systems

简介

NCL30188属于集成电路（IC）的LED驱动器。由制造生产的NCL30188LED 驱动器器件属于 LED 驱动器电源管理集成电路 (PMIC) 系列，可通过标称固定电压的电源为负载（通常为发光二极管）提供电流，并且电流可控。它与用于电压调节的类似产品的主要区别在于，这类器件提供较低的反馈电压（以提高系统能效），而且通常可对器件工作点进行外部控制，可在照明应用中用于实现调光功能。