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LM3478启动电流问题

Other Parts Discussed in Thread: LM3478

用LM3478设计了12V输入,24V/3A输出的BOOST电路,在空载条件下测试:

1. 外部输入电源限流设定为1A,上电后12V一直被拉低到5V,然后分别尝试2A,3A,4A,5A现象一样

2. 把Isense电阻从10mR调整到30mR后,外部输入电源分别设定为限流设定1A时,输入电压被拉低,设定为3A后电压稳定在12V没有被拉低

3. 把Isense电阻从30mR调整到80mR后,外部输入电源分别设定为限流设定1A时,输入电压稳定在12V没有被拉低

从上面的实验发现,Isense电阻越大,所需要的启动电流越小,请问这个电流检测的值跟启动电流是个什么关系