AL1663中文资料OFFLINE, SINGLE STAGE FLYBACK AND BUCK-BOOST CONTROLLER,WITH MULTIPLE DIMMING INTERFACES FOR LED DRIVER数据手册Diodes规格书

描述 Description

The AL1663 is a high performance single stage Flyback and Buck-boost controller, targeting dimmable LED lighting application. It is a primary side regulation (PSR) controller which can provide accurate constant current (CC) regulation without optocoupler and secondary control circuitry. It is operating at BCM mode which results in good EMI and efficiency, and keeps high PF and low total harmonic distortion (THD) under universal input voltage.The AL1663 can support multiple dimming modes. When a 0.3 to 2.4V DC signal is applied on APWM pin, the device will operate in analog dimming mode. When a digital signal is applied on APWM pin, the device works at PWM dimming mode. And for AL1663 When a digital signal is applied on PWMD pin and the APWM pin is connected with a hundreds of nF capacitor, the device will work in PWM-to-DC dimming mode.The AL1663 features low start-up current and low operation current. It integrates multiple protections including over voltage, short circuit, over current and over temperature protection.The AL1663 is available in SO-8 package.

特性 Features

Primary Side Regulation without Opto-coupler
Valley Switching for Low Switching Loss
Low Start-up Current
High PF and Low THD
High Efficiency
Tight LED Current Variation Range
Tight Output Open Voltage Variation Range
Support both PWM Dimming and Analog Dimming
Internal Protections
Under Voltage Lock Out (UVLO)
Output Over Voltage Protection (OVP)
Output Short Protection (OSP)
Over Current Protection (OCP)
Thermal Fold-back Protection (TFP)
Over Temperature Protection (OTP)
Low System Cost
Package: SO-8

应用 Application

General LED Lighting Driver with Dimming Function
General Purpose Constant Current Source
LED Backlighting Driver
Smart LED Lighting

简介

AL1663属于集成电路（IC）的LED驱动器。由Diodes制造生产的AL1663LED 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。