The RPM of the fan is 3150 RPM and the operating voltage is 12V.
The current is 0.51A.
Actually we have 3*BFB1112H in the fan tray 24572-411.
Can anyone please suggest a fan driver for the suggested fan.
We have a temperature sensor in the PCB and is connected to the MCU.
So we don’t need and extra temperature sensor to be connected with the fan driver.
The fan driver can have an input of either PWM or analog voltage.
Can you please suggest a fan driver/switch for our application?.
Also, for the fan driver MP6654, since ours is a DC motor, the hall sensor feedback will not be there, will this create any problem.
The MP6654 should not have an issue driving the blower, the part is designed to drive that style of motor. I recommend the MP6610 as it will be capable of driving all three fans in parallel.
Hello Team,
Thank you for your reply.
There is an integrated hall sensor for the IC MP6654. Since we don’t have this feedback, will this affect the performance?.
Also, can we control the speed of the fan by adjusting the frequency at the PWM pin of MP6654 ?.
For the IC MP6610, I hope we don’t have this speed control feature.
I see what you are saying with not having the hall effect feedback. I do not recommend using the MP6654 for this application since it relies on the hall effect sensor to control the H-bridge for controlling a single phase BLDC motor. It looks like your motor does not need commutation like a single phase BLDC and expects DC into the motor. The MP6610 will work to run that type of motor.
Changing the frequency of the PWM input will not change the speed of the motor, only changing the duty cycle will.