要求芯片的阀值是4.6V,当监控电压等于或高于4.6V时,有一个脚输出高电平,当监控电压低于4.6V时,输出低电平。
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要求芯片的阀值是4.6V,当监控电压等于或高于4.6V时,有一个脚输出高电平,当监控电压低于4.6V时,输出低电平。
Hi
这类电压监控的芯片比较多,例如TPS3808G50之类,它的阀值是4.65V, 你可以可以选择TPS3808G01,采用外部设置。
见datasheet: