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DRV3204-Q1 operation

JF
Prodigy 130 points
Other Parts Discussed in Thread: ALP

Hi, there

I have some questions about DRV3204-Q1 operation.

1. When DRV3204 is written by way of SPI, what value dose DOUT pin output?

2. How dose DRV3204-Q1 use built-in EEPROM?

3. Pls let me know that Aref output voltage's min-max value and temperature drift.

About 1., I've thought it's high impedance.

About2.,  I've thought it's for use in calibration data.

Thanks and Regards

JF

  • 0
    TI__Mastermind 26065 points

    Hi JF

    Perhaps your question about DRV3204 is owned by another group. Please wait for our forum ADMIN to move your thread for better support.

    Thanks,

    Wilson

     

  • 0
    TI__Intellectual 1045 points

     

    1. Previouse data (same address). For first time the register default value will output.

    example

    1st time: write data xx to adress yy --> output data : adress yy default

    2nd time : write data zz to adress yy --> output data : xx

    2nd time : write data xz to adress yy --> output data : zz

     

    2. For device configuration

    3. 0.5 to 2.5v SPI configurable. AREF output is not high impedance. This gives an offset voltage to current sense amplifer output.

    Please refer to CSOFFSET in CSCFG register.

  • 0 in reply to Toru Tanaka
    Prodigy 130 points

    Mr. Wilson and Mr. Tanaka

     

    Thanks for your reply.

     

    This No.3 answer means min-max values are 0.5 to 2.5V?

    But I think those values are typ. Could you tell me min - max values?

    And how about Aref's output temperature drift? If you have this material, pls give me it.

     

    BTW, I have another questions.

     

    4. Untill what voltage High side and Low side outputs of ALFB, ALV, Aref are permitted?
        Rail to Rail?

        if 0.5<=Aref<=2.5 is correct, then ALV = Vgain*(Rshunt*Imotor)+Aref is also correct?
        And is ALFB also 0.5V to 2.5V?   

    5. Should I need to consider about ALP, ALM common phase input range?
        Rail to Rail?

    Thanks and Regards

    JF