应用与设计

LT8610A 1.8V 降压型转换器

详情介绍

概览

产品详情

50W White LED Automotive Headlamp Driver

LT3755、LT3755-1 和 LT3755-2 是 DC/DC 控制器,专为充当一个用于驱动高电流 LED 的恒定电流源而设计。它们从一个内部已调 7.15V 电源来驱动一个低端外部 N 沟道功率 MOSFET。固定频率、电流模式架构在一个很宽的电源和输出电压范围内实现了稳定操作。一个参考于地的电压 FB 引脚用作多个 LED 保护功能电路的输入,而且还使得转换器能够起一个恒定电压源的作用。一个频率调节引脚允许用户在 100kHz 至 1MHz 的范围内设置频率,旨在优化效率、性能或外部组件尺寸。

工具及仿真模型

LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

To launch ready-to-run LTspice demonstration circuits for this part:

Step 1: Download and install LTspice on your computer.

Step 2: Click on the link in the section below to download a demonstration circuit.

Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.

LTspice