NCL30030中文资料结合功率因数校正和准谐振反激的AC-DC控制器，优化用于LED照明数据手册ONSEMI规格书

描述 Description

这PWM控制器集成功率因数校正和必要的准谐振反激控制器，成就紧凑和极高能效的AC-DC LED驱动器，用于高性能、低纹波的LED照明应用。PFC段利用专有乘法器架构，在采用临界导电模式工作时提供低谐波失真和接近1的功率因数。准谐振电流模式反激段包含专有谷底锁定电路，确保稳定的谷底开关工作，及在切换至频率反走模式之前在低至第4谷底工作，在超过第4谷底时采用最小频率钳位以消除噪声。跳周期模式提供极佳轻载能效，待机能耗极低，非常适合智能照明应用。

特性 Features

• Proprietary Multiplier Based CrM PFC Stage
• Low Hamonic Distortion across line and load
• Bi-Level Line Dependent PFC Boost Voltage
• Optimizes system efficiency across line voltage
• Boost Diode Short-Circuit Protection
• Enhanced and simplifies safety compliance
• Feedforward Control of PFC loop
• Improved transient operation across line and load
• Adjustable PFC Disable Threshold
• Supports Intelligent LED Driver Architectures
• 700 V Rated High Voltage Startup Circuit
• Simplifies Design and reduces bill-of-materials
• Quasi-Resonant Current Mode Flyback Controller
• High Efficiency across load
• Valley Lockout and 4 valley operation
• Reliable operation without audible noise
• Frequency foldback with minum frequency clamp
• Enhanced light load efficiency
• Timer-based overload protection
• Improved system safety handling
• Winding and Output Diode Short−Circuit Protection
• Enhanced and simplifies safety compliance
• 4 ms soft start timer
• Smooth startup behavior

应用 Application

• Ac-Dc Low Ripple LED Drivers
• LED Electronic Control Gear
• LED Driver Power Supplies
• Power Supplies for LED Signage
• LED Luminaires
• Medical and Industrial Power Supplies
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• Adapters

简介

NCL30030属于集成电路（IC）的LED驱动器。由制造生产的NCL30030LED 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。