AP1684中文资料off-line-led-drivers数据手册Diodes规格书

描述 Description

The AP1684 is a high performance AC-DC power factor corrected LED driver controller which is driving high voltage bipolar transistor. The device uses Pulse Frequency Modulation (PFM) technology to regulate output current while achieving high power factor and low THD. It operates as a boundary condition mode (BCM) buck controller which is good for EMI. The AP1684 provides accurate constant current (CC) regulation while removing the opto-coupler and secondary control circuitry. It also eliminates the need of loop compensation circuitry while maintaining stability. It can meet the requirement of IEC6100-3-2 harmonic standard. The AP1684 features low start-up current, low operation current and high voltage driving bipolar transistor. It adopts dynamic base driver control technology and valley on switching mode to achieve high efficiency. It also has rich protection features including over voltage, short circuit, over temperature protection.

特性 Features

Low Start-up Current
High PF and Low THD (PF > 0.9, THD < 30%)
High Efficiency up to 92%
BCM Mode
Output Current Accuracy on IC Level: ±2%
Tight LED Open Voltage
Valley-mode Switching to Minimize the Transition Loss
BJT Transistor Driver
Dynamic Base Driver Control
Open-load and Reload Detection
Internal Protections:
Under Voltage Lock Out (UVLO)
Leading-edge Blanking (LEB)
Output Short Protection
Output Open Protection
Over Temperature Protection
Low System Cost
SO-8 Package

应用 Application

LED Bulb Lamp
LED Down Light
GU10/E27
Other Non-dimmable LED Lighting

简介

AP1684属于集成电路（IC）的LED驱动器。由Diodes制造生产的AP1684LED 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。