使用 ON Semiconductor 的 TL431B 的参考设计

Typical Application for TL431B Programmable Precision References for Linear Ohmmeter

 
设计简介

说明

  • Typical Application for TL431B Programmable Precision References for Linear Ohmmeter. The TL431A, B integrated circuits are three-terminal programmable shunt regulator diodes. These monolithic IC voltage references operate as a low temperature coefficient zener which is programmable from Vref to 36V with two external resistors. These devices exhibit a wide operating current range of 1.0 mA to 100 mA with a typical dynamic impedance of 0.22 ohm. The characteristics of these references make them excellent replacements for zener diodes in many applications such as digital voltmeters, power supplies and op amp circuitry
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