LTC1871-7 A 高效率 42V、1.5A 汽车应用的升压型转换器
详情介绍
概览
产品详情
LT3758 是一款宽输入电压范围、电流模式 DC/DC 控制器，该器件能够产生正输出或负输出电压。它可以被配置为一个升压、反激式、SEPIC 或负输出转换器。LT3758 从一个内部 7.2V 稳压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电压和输出电压范围内实现了稳定的操作。
输入和输出之间的 DC 隔离是通过增设一个基准 LT4430 (在变压器的副边上) 和一个光耦合器 (以提供从隔离副边至 LT3758 的反馈) 来实现的。
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.
