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MSP430F5172: MSP430F5172

Firehiwot Gurara
Prodigy 210 points
Part Number: MSP430F5172


Hello, 

I am designing a dc dc converter which has buck and boost stages operating in the range of 500-1000kHz. I am planning to use MSP430f5172 microcontroller. However, these microcontrollers have very low resolution so I may not be able to generate the desired duty cycles with this controller. My questions are

1. Is this microcontroller recommended for the frequency range I am operating in? Is there a maximum frequency above which this microcontroller is not recommended?

2. In the datasheet, I saw that if I using TimerD the frequency can go up to 256MHz (4ns resolution).  I would like to know if this would make the controller too hot or consume more power since the controller will be sourced from a battery?

Thank you in advance. 

  • 0
    TI__Mastermind 40040 points

    Hi

    As you know the timer can running at 256MHz so I think the resolution should be no problem. And you are right the high frequency will generate lot of heat so we have put large thermal pad on the device. For the power consumption you can refer to the datasheet, you can see the timer running at 256MHz is about 265uA 

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