HVLED001B数据手册集成电路（IC）的LED驱动器规格书PDF

描述 Description

The HVLED001B is an enhanced peak current mode controller able to control mainly high power factor (HPF) flyback or buck-boost. Some other topologies such as buck, boost and SEPIC, can also be implemented.

Primary side regulation and optocoupler control can be applied independently on the chip, both exploiting precise regulation and very low standby power during no load conditions.

The innovative ST high voltage technology allows direct connection of the HVLED001B to the input voltage in order to both start up the device and to monitor the input voltage, without the need for external components.

Abnormal conditions like open circuit, output short-circuit, input over-voltage or under-voltage 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 an automatic application recovery, without any loss of reliability.

特性 Features

• Quasi resonant (QR) topology
• Primary side regulation of output voltage
• Direct optocoupler connection for current loop regulation with feedback disconnection detection
• 800 V high voltage startup
• High power factor and low THD in universal range
• High efficiency and output stability in wide voltage and current range
• Extremely low standby power at no load condition
• Programmable frequency foldback
• Integrated input voltage detection for high power factor capability and protection triggering
• Latch-free device guarantee by smart auto-reload timer (ART)
• 0-10 and PWM dimming compatible
• Remote control pin

简介

HVLED001B属于集成电路（IC）的LED驱动器。由制造生产的HVLED001BLED 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。