UCC28704: UCC28704电压采样前沿消隐时间是否随复杂变化？

UCC28704 芯片手册中对辅助波形采样的描述如下；

in Figure 14. Since this can mimic the waveform of the secondary current decay, followed bya sharp downslope, it is important to keep the leakage reset time less than 750 ns for IPRI minimum, and lessthan 3.0 μs for IPRI maximum. 

问题1、电压采样是否从tDM_BLANK结束后连续采样?

问题2、是否表示tDM_BLANK时间可变，满载时tDM_BLANK小于3uS，轻载时tDM_BLANK小于750nS?

请各位大神为小弟指点迷津，感激不尽！