Other Parts Discussed in Thread: BQ76952,
BQ76952和MCU之间使用ISO1541隔离通信,但是AFE将SDA2拉低后,MCU端的SDA1有0.7V,导致MCU识别错误。
有没有办法能让隔离转换的SDA电平进一步拉低?
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您好,增大上拉阻值(弱上拉)可以降低这个点的电压。
Rup(min)=[Vcc-Vol(max)]/Iol
您现在的上拉阻值是多大?