help with my raptor chip with p chanel mosfet

[Dex Ter]

just built a box with raptor and p chanel mosfet it's firing but when i set to full volts it vibrates or when i set to mid, it fires for awhile but when the battery gets low it will vibrate again so i need to lower the voltage again. is it normal for this chip? is it the +/- sense that trigger this? i'm using .2 ohm build with my rda.. thanks everyone

 

[Katmar]

Welcome to the forum, Dex......bumping you up for an answer.

 

[Bunnykiller]

general thoughts make me think that the amps required to keep the output as to where you set it are lacking and the chip goes into its maximum output and the PWM is at a peak ( with supplied amps) and is oscilating in a lower frequency, thus the vibration.... I would either replace the battery/charge it or bump up the ohms a tad.... you may find yourself without a mod due to constant overdriving the chip....