AL5802中文资料30V Adjustable Current Sink Linear LED Driver数据手册Diodes规格书

描述 Description

The AL5802 combines a high gain NPN transistor with a prebiased NPN transistor to make a simple small footprint LED driver. The LED current is set by an external resistor connected to from REXT pin (6) to GND pin (4), the internal high gain transistor develops approximately 0.6V across the external resistor. The AL5802 open-collector output can operate from 0.8V to 30V enabling it to operate from 5V to 24V power supplies without additional components. PWM dimming of the LED current can be achieved by either driving the BIAS pin (2) with a low impedance voltage source, or driving the EN pin (3) with an external opencollector NPN transistor or open-drain N-channel MOSFET. The AL5802 is available in a SOT26 package and is ideal for driving 20mA to 120mA LED currents.

特性 Features

Reference voltage VRSET = 0.65V
-40 to 125°C temperature range
0.8V to 30V open-collector output
Negative temperature co-efficient – automatically reduce the LED current at high temperatures
Low thermal impedance SOT26 with copper leadframe
SOT26: Available in “Green” Molding Compound (No Br, Sb)
Qualified to AEC-Q101 Standards for High Reliability

应用 Application

Linear LED Driver
LED Signs
Offline LED Luminaries

简介

AL5802属于开发板套件编程器的评估板-LED驱动器。由制造生产的AL5802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。