CAT4106数据手册开发板套件编程器的评估板-LED驱动器规格书PDF

描述 Description

The CAT4106 is an integrated multi-channel LED driver and high power dc-dc converter suitable for powering backlighting applications up to a total of 6 watts. Up to four matched LED strings can be accurately programmed with uniform drive current set by a single external resistor. Each output channel is suitable for LED string voltages of up to 36 V. The driver automatically adjusts the output voltage to drive the highest forward voltage string with the minimum headroom voltage maximizing the efficiency.High resolution dimming control is achieved by the EN/PWM logic pin which supports multiple frequencies. This ensures precise PWM dimming control while the device remains fully biased. In addition, when held at logic low, the device to enter a full shutdown 'zero' current mode.External programming resistors set the minimum and maximum voltage limits for the acceptable 'window of operation' for LED strings. Any channel which fails to regulate within the window (Open or Short LED) is detected and flagged on the FAULT logic output (active low, open-drain).The device is available in a 16-lead TQFN 4 mm x 4 mm and TSSOP with exposed pad packages.

特性 Features

• Four LED Channels with Tight Current Matching
• Integrated DC-DC Boost Converter
• Up to 6 W LED Total Output Power
• Up to 92% Efficiency
• Low Dropout LED Channels (500 mV at 175 mA)
• High Frequency PWM Interface (Up to 2 kHz)
• Adjustable Short/Open LED Detection
• Programmable LED Channel Current
• Adjustable LED Channel Voltage

应用 Application

• LCD Backlighting
• Automobiles

简介

CAT4106属于开发板套件编程器的评估板-LED驱动器。由制造生产的CAT4106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。