NCL30105中文资料灵活可调光的降压LED驱动器控制器数据手册ONSEMI规格书

描述 Description

NCL30105是一款峰值电流控制固定关断时间降压控制器，用于LED驱动器应用。这器件经过了优化，采用深度连续导电模式工作，省去输出电解电容。这控制器包含可调节关断时间产生器，能以达500 kHz开关频率驱动MOSFET。专用调光引脚使这器件能够使用PWM逻辑信号来直接对LED调光。软启动引脚产生启动序列，缓慢加大峰值电流，能够调节峰值电流设定点，用于模拟调光控制。这器件还具有强固的保护特性，能够检测开关过流故障及检测最大导通时间事件。

特性 Features

• Constant off time current mode control
• No loop compensation required
• Adjustable off time (0.5 to 10 µs)
• Easily adjust operating frequency and output ripple
• Internal leading edge blanking
• Avoids false triggering during FET turn on
• ± 5% current sense accuracy
• Accurate LED current regulation
• Internal Startup Delay
• Ensure stable operation during initial system turn on
• PWM or Analog Dimming Control
• Flexible support for dimmable LED lighting applications
• Maximum on time protection
• Enhanced system robustness
• Overcurrent protection
• Enhanced fault handling
• Thermal Shutdown
• Enhanced protection
• Soft Start

应用 Application

• LED Backlight Driver for large LCD panels
• LED Lightbar Driver
• LED Street Lighting
• LED Large Area Lights
• Architectural Lighting

简介

NCL30105属于开发板套件编程器的评估板-LED驱动器。由制造生产的NCL30105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。