Hi,
TPS54821如果希望用单片机来控制调节电压,该如何实现?
如果要用单片机控制缓启动时间,该如何实现?
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HI
通过单片机DAC输出通过电阻给到FB脚,或者I/O口PWM信号通过滤波成直流通过电阻给到FB,都是可以实现输出可调。
软起动是没有办法控制的,但是可以通过I/O口控制EN脚控制输出启动时序。