Hi there, I’m using MP2690 to design a portable fan. I noticed when MP2690 SYS output is connected to inductive load (like a fan or motor), Boost mode is not shutdown when PB is held low for 2.5s. But if I switch the load to a resistive one, PB is working just fine & Boost can be shutdown normally,
At first, I suspect it is due to the noise presented on PB line (1.2Vpp). But after I reduce the noise on PB down to 0.4Vpp, the condition still not improving.
I hope MPS can shed some light on this issue. The inductive load tested range from 0.28A to 0.4A.