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TL431的陰極電壓與電流

Other Parts Discussed in Thread: TL431

上是TL431內部的一個簡化圖,當V1>2.5V時,OP輸出可視為HIGH,連帶導通三極管

技術文件上說:V1與2.5V的差距,可使陰極電流I2從1mA變化到100mA

這可解釋為:OP送出一個I1電流,並隨著V1與2.5V的差距變大而變大,導致I2變大嗎?

另外,Vk電壓說落於2.5V~36V,這我就不知道為何會有這個數據的產生?是TL431內有

類似齊納二極體的功能,把Vk卡在2.5V~36V嗎?