原标题：基于ST HVLED001A的35W LED照明驱动方案

　　HVLED001A是一款增强型峰值电流模式控制器，能够控制输出功率高达150 W的LED驱动器中的高功率因子(HPF)反激或降压 - 升压拓扑。其他拓扑结构，如降压，升压和SEPIC，可以也可以实施。

　　ST的创新高压技术允许将HVLED001A器件直接连接到输入电压，以启动器件并监控输入电压，而无需外部组件。

　　该器件嵌入了先进的功能，可以使用减少数量的主要无源组件精确可靠地控制输出电压或输出电流。启动和轻载条件由专用操作方案管理，以提高最终应用中输出变量的调节质量。可以有效地控制开路，输出短路，输入过压/欠压等电路故障，如主开关的开环和过电流等异常情况。内置智能自动恢复定时器(ART)功能，可确保自动应用程序恢复，而不会降低可靠性。

　　场景应用图

　　产品实体图

　　展示板照片

　　方案方块图

　　核心技术优势

　　1. 准谐振(QR)拓扑

　　2. 800V高压启动

　　3. 超低启动和静态电流

　　4. 初级侧定电压调节(PSR Mode)

　　5. HV pin 测量输入电压和检测输入过压

　　方案规格

　　1. 功率因子高，THD低

　　2. 可编程的最小关闭时间

　　3. 0-10 PWM调光

　　4. 内置智能自动恢复定时器(ART)功能，可确保自动应用程序恢复，而不会降低可靠性

　　技术文档

　　【HVLED001A】

　　Offline controller for LED lighting with constant voltage primary-sensing and high power factor

　　The HVLED001A is an enhanced peak current mode controller capable of controlling high power factor (HPF) flyback or buck-boost topologies in LED drivers that have an output power of up to 150 W. Other topologies, such as buck, boost and SEPIC, can also be implemented.

　　ST’s innovative high voltage technology allows direct connection of the HVLED001A device to the input voltage to start up the device and to monitor the input voltage, without the need for external components.

　　The device embeds advanced features to control either the output voltage or the output current precisely and reliably using a reduced number of mainly passive components. Startup and light load conditions are managed by dedicated operating schemes to improve the quality of the regulation of the output variable in the final application. Abnormal conditions such as open circuit, output short-circuit, input overvoltage/ undervoltage and circuit failures like open loop and overcurrent of the main switch are effectively controlled.

　　A smart auto-recover timer (ART) function is built-in to guarantee automatic application recovery, without loss of reliability.

　　主要特性

　　Quasi resonant (QR) topology

　　Optimized output voltage accuracy at any load (PSR mode)

　　Improved transient response and startup time

　　Direct optocoupler connection for current loop regulation with feedback disconnection detection

　　800 V high voltage startup

　　High power factor and low THD over wide range of input voltage and load variations

　　High efficiency and output stability over wide voltage and current range

　　Low startup and quiescent current

　　Programmable minimum off-time

　　Integrated input voltage detection for high power factor capability and protection triggering

　　Latch-free device guaranteed by smart auto-reload timer (ART)

　　0-10 and PWM dimming compatible

　　Remote control pin