AP8802中文资料medium-voltage-dc-dc-led-drivers数据手册Diodes规格书

描述 Description

The AP8802 is a step-down DC/DC converter designed to drive LEDs with a constant current. The device can drive up to thirteen LEDs, depending on the forward voltage of the LEDs, in series from a voltage source of 8V to 48V. Series connection of the LEDs provides identical LED currents resulting in uniform brightness and eliminating the need for ballast resistors. The AP8802 switches at frequency up to 500kHz. This allows the use of small size external components, hence minimizing the PCB area needed. Maximum output current of AP8802 is set via an external resistor connected between the VIN and SET input pins. Dimming is achieved by applying either a DC voltage or a PWM signal at the CTRL input pin. An input voltage of 0.2V or lower at CTRL shuts down the output at SW and puts the device into a low-current standby state.

特性 Features

LED driving current up to 1A
High efficiency up to 92%
Operating input voltage up to 48V
High switching frequency up to 500kHz
PWM/DC input for dimming control
Built-in output open-circuit protection
SO-8, SO-8EP and DFN3030-10 are available in “Green” Molding Compound (No Br, Sb)
Lead Free Finish/RoHS Compliant

应用 Application

Commercial & industrial lighting
Small LCD panel backlight
Appliances interior lighting
Architecture Detail lighting

简介

AP8802属于开发板套件编程器的评估板-LED驱动器。由Diodes制造生产的AP8802评估板 - LED 驱动器LED 驱动器评估板是带有元器件的电路板，用于提供特定电路或器件的工作实例。该系列评估板提供一个 LED 驱动器实例，用于可调节闪烁、模拟亮度、背光、双极开关、升压转换器、亮度控制、相机闪光灯、可调光、恒流和 RGB 控制，以及更多其他应用。