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https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1345381/ucc21750-q1-clarification-required-for-apwm-pin-ucc21750-q1
尊敬的 Srideeth：
APWM 是输出引脚(模拟 PWM 输出)、因此在不使用时必须保持开路、而不是通过电阻器连接到 GND、因为它会增加 VCC 功耗。
希望它有所帮助。
