应用与设计

隔离式电流和电压监视器

详情介绍

概览

产品详情

Solar Powered LED Driver

该图示出了将一个由太阳能电池供电的 LED 驱动器应用于 LED 应急手电筒的情形。当手电筒关断时,LTC3536 处于停机模式。当不再能够提供环境光时,其低于 1μA 的静态电流可最大限度地减少超级电容器的电量消耗。当 LED 电筒接通时,LTC3536 通过 SHDN 引脚接通以向 LED 提供 105 mA 的恒定负载电流。LTC3536 可调节输出和 LED 电流,在超级电容器充电至高达 5V 的情况下可保证 14 分钟的可靠照明。通过增加超级电容器的数值或使用一个具有合适充电控制功能的电池,可以延长这 14 分钟的保证照明时间。

相关产品

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