Logic Level Converter – Bi-Directional 雙向邏輯電平轉換模組 SparkFun原廠

Logic Level Converter – Bi-Directional 雙向邏輯電平轉換模組 SparkFun原廠

NT$114 未稅

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  • 商品說明

商品說明

Logic Level Converter – Bi-Directional 雙向邏輯電平轉換模組

如果您曾經嘗試將3.3V器件連接到5V系統,那麼您就會知道這是一個挑戰。SparkFun雙向邏輯電平轉換器是一款小型設備,可以安全地將5V信號降壓至3.3V,同時將3.3V升壓至5V。該電平轉換器還適用於2.8V和1.8V器件。該邏輯電平轉換器與我們以前的版本的真正區別在於,您可以成功設置高電壓和低電壓,並在同一通道上安全地在它們之間進行升壓和降壓。每個電平轉換器都可以將高端的4個引腳轉換為低端的4個引腳,並為每側提供兩個輸入和兩個輸出。

電平轉換器非常易於使用。該板需要使用系統正在使用的兩個電壓源(高壓和低壓)供電。高電壓(例如5V)連接到“ HV”引腳,低電壓(例如3.3V)連接到“ LV”,並從系統接地到“ GND”引腳。

SparkFun邏輯電平轉換器-雙向

如果您看一下電路板的原理圖,您會發現雙向邏輯電平轉換器(簡稱BD-LLC)實際上是一個非常簡單的設備。板上基本上有一個電平轉換電路,該電路重複四次以創建四個電平轉換通道。該電路使用單個N溝道MOSFET和一對上拉電阻來實現雙向電平轉換。

MOSFET邏輯電平轉換電路

尺寸

  • 0.63 x 0.52英寸(16.05 x 13.33毫米)

 

Documents

 

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If you’ve ever tried to connect a 3.3V device to a 5V system, you know what a challenge it can be. The SparkFun bi-directional logic level converter is a small device that safely steps down 5V signals to 3.3V AND steps up 3.3V to 5V at the same time. This level converter also works with 2.8V and 1.8V devices. What really separates this Logic level converter from our previous versions is that you can successfully set your high and low voltages and step up and down between them safely on the same channel. Each level converter has the capability of converting 4 pins on the high side to 4 pins on the low side with two inputs and two outputs provided for each side.

The level converter is very easy to use. The board needs to be powered from the two voltages sources (high voltage and low voltage) that your system is using. High voltage (5V for example) to the ‘HV’ pin, low voltage (3.3V for example) to ‘LV’, and ground from the system to the ‘GND’ pin.

Features

  • 0.63 x 0.52″ (16.05 x 13.33mm)