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TLC555: 关于定时器555芯片描述问题

Part Number: TLC555

  • 你好,我在查看555定时器第十页关于充放电时间常数介绍的时候,发现描述有点问题,想来确定一下。如图驱动占空比应该是Tch,和下面占空比互换。因为tch是电容充电情况下时间常数Ct(Ra+Rb)Ln2的取值,tcl为放电情况下取值CtRbln2的取值。所以,占空比定义的话Tch/tch+tcl等于1-Rb/(Ra+2Rb)