MP9485 is giving energy without enable on

DC-DC Power Converters
1

Hi. I have a DC-DC Convertor. I use MP9485 in my project. MP9485 convert 48V to 13.4V. I have a problem in my converter. This problem is that MP9485 is giving energy without Enable pin on. How can I solve this problem ?

2

Hi @tuncay.akcicek,

The EN pin is internally pulled up to 3V. So if it is left floating the MP9485 is enabled.
When you say “without Enable pin on” does it mean the enable pin is connected to ground or left floating?

Thank you
Saurabh