HVLED001A中文资料具有恒压一次感应和高功率因数的LED照明用离线控制器数据手册ST规格书

描述 Description

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.

特性 Features

• 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

简介

HVLED001A属于集成电路（IC）的LED驱动器。由制造生产的HVLED001ALED 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。