Hello all,
Does anyone have any suggestions for a BLDC motor controller IC? I'm specifically looking for one that can "sync" up to an external clock signal through some sort of internal PLL. It also needs to get its feedback from a Hall Effect sensor. It doesn't matter if it has internal drive transistors, or needs external ones. I can design the circuit around it.
So far most of the stuff I've been able to find uses a reference voltage or duty cycle to determine the motor speed, but that won't let me sync the phase of the motor up to an external source like a clock pulse would. I have found a number of ICs from On Semiconductor that do exactly what I want to do, but I can't find any supplier (at least any of the big ones - Mouser, Digikey etc) that have them. I'm going to contact On directly to see if they have any suggestions, but I figured a few of you might know exactly what I need.
I have also seen a number of solutions that are MCU based, but I'd like to avoid that if possible. It's more difficult to verify it's working properly and I don't feel like writing a lot of code if I don't have to.
This is one of the ON chips that's almost exactly what I need:
http://www.onsemi.com/pub_link/Collateral/EN8317-D.PDF
However:
http://www.eciaauthorized.com/search?pn=LB11876
In case it matters -
Coil Voltage ~5V
Coil Current (run) - 0.4A
Coil Currnet (startup) - 0.6A
Three hall sensors, 60 degrees apart (I might need to check on that one...)
And to reiterate -
-BLDC Motor Controller IC
-Rotor Position Sync (PLL) to External Clock Pulse (not reference voltage or duty cycle)
-Hall Effect sensor feedback
Thank you all for your time,
Owen
Does anyone have any suggestions for a BLDC motor controller IC? I'm specifically looking for one that can "sync" up to an external clock signal through some sort of internal PLL. It also needs to get its feedback from a Hall Effect sensor. It doesn't matter if it has internal drive transistors, or needs external ones. I can design the circuit around it.
So far most of the stuff I've been able to find uses a reference voltage or duty cycle to determine the motor speed, but that won't let me sync the phase of the motor up to an external source like a clock pulse would. I have found a number of ICs from On Semiconductor that do exactly what I want to do, but I can't find any supplier (at least any of the big ones - Mouser, Digikey etc) that have them. I'm going to contact On directly to see if they have any suggestions, but I figured a few of you might know exactly what I need.
I have also seen a number of solutions that are MCU based, but I'd like to avoid that if possible. It's more difficult to verify it's working properly and I don't feel like writing a lot of code if I don't have to.
This is one of the ON chips that's almost exactly what I need:
http://www.onsemi.com/pub_link/Collateral/EN8317-D.PDF
However:
http://www.eciaauthorized.com/search?pn=LB11876
In case it matters -
Coil Voltage ~5V
Coil Current (run) - 0.4A
Coil Currnet (startup) - 0.6A
Three hall sensors, 60 degrees apart (I might need to check on that one...)
And to reiterate -
-BLDC Motor Controller IC
-Rotor Position Sync (PLL) to External Clock Pulse (not reference voltage or duty cycle)
-Hall Effect sensor feedback
Thank you all for your time,
Owen