CAT4201中文资料LED Driver, 350 mA, Step-Down Converter数据手册ONSEMI规格书

描述 Description

The CAT4201 is a high efficiency step-down converter optimized to drive high current LEDs. A patented switching control algorithm allows highly efficient and accurate LED current regulation. A single RSET resistor sets the full scale LED string current up to 350 mA from supplies as high as 36 V. The switching architecture of the CAT4201 results in extremely low internal power dissipation allowing the device to be housed in a tiny package without the need for dedicated heat sinking. The device is compatible with switching frequencies of up to 1 MHz, making it ideal for applications requiring small footprint and low value external inductors.Analog dimming and LED shutdown control is provided via a single input pin, CTRL. Additional features include overload current protection and thermal shutdown.

特性 Features

• Power Efficiency up to 94%
• Smaller, more efficient alternative to linear regulators for driving high-brightness LEDs in step-down applications.
• LED Drive Current up to 350 mA
• Compatible with 12 V and 24 V Standard Systems
• Handles transients up to 40 V
• Single Pin Control and Dimming function
• Drives LED Strings of up to 32 V
• Open and Short LED Protection
• Parallel Configuration for Higher Output Current

应用 Application

• 12 V and 24 V Lighting Systems
• High Brightness 350 mA LEDs
• Automobiles and Aircraft
• General Lighting

简介

CAT4201属于开发板套件编程器的评估板-LED驱动器。由制造生产的CAT4201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。