[BJE]

HI everyone.

I am an absolute novice with electronics, the little bit I do know is self taught.

I need to operate a sensorless brushless motor 5v at its max recomended rpm but I have no idea what the components do and how to make sure it works correctly each time it is switched on.

I also need to be able to charge the two batteries connected in series through one single socket (I have attached the data sheet of charging devices I have been using so far).

I have the following components in stock and can obviously order more.

2 x 3,7v 900mah 15C Lipo batteries wired in series.
1 x 5v Sensorless Brushless Motor rated to run at 12,000 rpm,max current 140ma typical of 115ma
1 x switch
1 x TDA5140A brushless, sensorless motor driver

All help will be gratefully received.

Cheers BJE

 

[hevans1944]

Where is the datasheet for the motor? Why did you purchase the TDA5140A IC? Your LiPo charger circuit will charge a single cell only, not two connected in series. Other than that, it's all plug and pray.

 

[BJE]

HI thanks for the reply.

I purchased the driver chip because this is what was suggested by the motor supplier and I knew no different !!!

Sorry I forgot to include the info on the motor, I have attached as a PDF

Thanks for you help

BJE