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DRV10983-Q1: related question

Daniel Wang (auto)
Intellectual 1970 points
Part Number: DRV10983-Q1
Other Parts Discussed in Thread: DRV10983

Hello experts,

Our customer encountered some problems when design DRV10983-Q1, can you help with it:

No

PN

Question describe

reply

1

DRV10983

When the LDO mode is selected for the STEP DOWN mode of the DRV10983, the series resistance of the DS is 39ohm, is this optional, how to design, and is there a design guide?

　

2

DRV10983

Does the 10983 chip support BrakeMode when the speed is 0 to achieve the motor holding function?

　

3

DRV10983

Does the 10983 chip support phase current readback function?

　

4

DRV10983

Does the 10983 chip support current limit configuration?

　

5

DRV10983

Is it possible to detect the blockage during the open-loop drag phase of the motor?

　

6

DRV10983

What are the fault diagnoses of the 10983 chip?

　

7

DRV10983

DRV10983, if the customer needs to make a torque estimation, then the sampling phase current is required, but now that the MOS is integrated, is there a solution for sampling the current?

　

Thank you very much.

  • 0
    TI__Mastermind 24405 points
    Daniel Wang (auto) said:

    When the LDO mode is selected for the STEP DOWN mode of the DRV10983, the series resistance of the DS is 39ohm, is this optional, how to design, and is there a design guide?

    39 ohms is required for the LDO operation. Not sure what you mean by "How to design". Simply follow the schematic in the datasheet. 

    Daniel Wang (auto) said:

    Does the 10983 chip support BrakeMode when the speed is 0 to achieve the motor holding function?

    No, this device does not have this feature.

    Daniel Wang (auto) said:

    Does the 10983 chip support phase current readback function?

    Yes, please check the register map in the datasheet (section 8.5.2). 

    Daniel Wang (auto) said:

    Does the 10983 chip support current limit configuration?

    Yes it does. Please check the datasheet (section 8.4.7). 

    Daniel Wang (auto) said:

    Is it possible to detect the blockage during the open-loop drag phase of the motor?

    Yes, the device will trigger "Open loop stuck" fault.

    Daniel Wang (auto) said:

    What are the fault diagnoses of the 10983 chip?

    Please check the Tuning guide for more details.

    Daniel Wang (auto) said:
    DRV10983, if the customer needs to make a torque estimation, then the sampling phase current is required, but now that the MOS is integrated, is there a solution for sampling the current?

    Phase current can be read from register address 0x04.