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TMS320F28069M: Can anyone compare the pro's and Con's to the TMS320F28069M & the Infineon IRMCK099M for low cost FOC application?

Graham Fick2
Prodigy 10 points
Part Number: TMS320F28069M
Other Parts Discussed in Thread: TMS320F28026F

Hello All

Does anyone know a direct comparison between the TMS320F28069M and the Infineon IRMCK099M?

I like the Idea of the instaspin-motion or instaspin-FOC however it seems the hardware cost is so much higher.

I also rather like the idea that I can program in all the setup and running variables through serial protocols so I can control it directly from a PIC with no prior setup. I have not used any other micro controllers before so rather reluctant to switch as this will increase development time.

Thanks

Graham

  • 0
    TI__Guru** 118000 points

    Graham,

    They are considerably different in that the IR is essentially a fixed function ASIC.  It will require a host processor to send commands to it during operation, so take that into account.  It's more similar to an intelligent gate driver, without the gate driver portion.  Our InstaSPIN solutions give you a fully programmable MCU, so you can add the system and host functionality yourself.  Both have their advantages and disadvantages.

    From an algorithm performance aspect for sensorless the InstaSPIN FAST observer is significantly better, more stable, and more reliable. We've seen it ourselves at common customers. Better low speed, under load, handles dynamics better, flying start capability, and significantly better at high speeds / over-modulation.

    For sensored control our InstaSPIN-MOTION is unmatched in my opinion, and the flexibility we provide is required. Servo systems are too complex for a fixed function approach.

    There are lower cost options for InstaSPIN besides the F28069M: TMS320F28026F, 27F, 52F, 54F, 52M, 54M, 62F, 68F, 68M, 69F

    but yes, they are a different class of device than the INF/IR.