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UCD9248 控制模块的rise time遇到问题,求帮助

Other Parts Discussed in Thread: PTD08D210W, PTD08A020W, UCD9248
您好,我正在使用TI的软件Fusion Digital Power Designer2.0.179来配置UCD9248 +PTD08A020W、PTD08D210W,on/off config设为always coverting,
目前各路电压都输出正常,但是发现54D和76D rail2的rise time设置并没有生效,如下图
 
不论将rise time设为多少,实际上电速度都没有变化,而同个UCD9248的其他rail设置rise time都可以生效,
原理图和电源配置均参考Xilinx KC705的设计,
,原理图电源部分和电源配置如下:
请问是配置有问题,或者是ucd9248需要更换?