AL8862SP-13 LED降压驱动器

AL8862SP-13 60V 降压LED驱动器具有调光功能 ，AL8862 降压型 DC-DC 转换器提供可从外部调节、高达1A的输出电流。该器件的输入电源电压为 5 V 至 60 V，AL8862 集成了低 RDS(ON)电源开关和高压侧输出电流检测电路。通过在 VIN和 SET 输入引脚之间连接外部电阻，可设定 AL8862 的最大输出电流。调光通过在 CTRL 输入引脚施加 DC 电压或者 PWM 信号实现。该器件采用热增强型 SO-8EP 封装。

特性

集成 60 V/0.4 Ω 功率 MOSFET 支持高达 1 A 的 LED 电流 所需的外部元件更少，实现更高的能效 支持高功率应用 输入电压 5 V - 60 V 宽输入电压范围，可支持广泛的应用 从 0% 到 100% 的 PWM 调光范围 宽调光范围能力 内置保护功能，防止 LED 短路/开路，还有超温保护 (OTP)，可确保系统可靠性

应用

工业照明 建筑照明 多通道外部驱动器

Description:

The AL8862 is a step-down DC/DC converter designed to drive LEDs with a constant current. The AL8862 operates with an input supply voltage from 5V to 60V and provides an externally adjustable output current up to 1A. Series connection of the LEDs provides identical LED currents resulting in uniform brightness and eliminating the need for ballast resistors. The AL8862 switches at frequency up to 1MHz.

This allows the use of smaller size external components, hence minimizing the PCB size.

● Wide Input Voltage Range: 5V to 60V

● Output Current up to 1A

● Internal 60V NDMOS Switch

● Typical 4% Output Current Accuracy

● Single Pin for On/Off and Brightness Control by DC Voltage or PWM Signal

● High Efficiency (Up to 97%)

● LED Short-Circuit Protection

● Inherent Open-Circuit LED Protection

● Current-Sense Resistor Short-Circuit Protection

● Over Temperature Shutdown

● Up to 1MHz Switching Frequency

● SO-8EP Packages Available in Green Molding Compound (NoBr, Sb)