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AMIC110: AMIC ICE heating problem

Gupta V V
Intellectual 430 points
Part Number: AMIC110
Other Parts Discussed in Thread: TPS650250

Hi
I have Bought a AMIC110 development board from TI Store.
I have used the power supply exactly suggested by TI in that user guide. I have bought it from Digi Key through the link provided in TI website.
I have followed the same process mentioned in the user guide.
But I have noticed that PMIC (TPS650250) is getting heated up when i connect power supply.
And one more thing that i have noticed is during power on 2 LEDs(D15 and D19) should ON. But only D15 is ON, D19 is OFF.
1. Now My major doubt is does this board work? or it has a defect?
And I also need to buy a Debugger XDS200 which is not provided with the kit to test whether the board is working or not.
2. Now i am confused what to do? whether to buy XDS200 debugger or not? If I buy that, if this kit dont work what should i do(again i have to replace this kit with new one)? which in turn delays my project schedule. 
3. Or can I conclude that this board has a defect by considering the above 2 test cases?
4. do you have any service centre in Bangalore, so that i can personally take this kit to that service center for testing or replacement?
if yes please share with me the address.
5. Do you have free replacement warranty for this product(As it was mentioned in you warranty policy that it can be done if I raise a defect found to TI, with in 10 days after I received the product)? 
please suggest me how should i move on by considering the above 2 cases I have noticed. 
If I have to return this, What is the replacement process that i should do?
My Project is to develop an EtherCAT Slave Application on this Kit.
  • 0
    TI__Mastermind 42545 points

    Hi Gupta,

    It is not uncommon for the power supply components to get hot.  That is not necessarily an indication that the board is not operational.  D15 indicates that you have connected your external power supply. The other LEDs on the board are controlled by software so you won't see any activity unless you have software running. If you have a volt meter you could measure the outputs from the PMIC to determine if the device is generating the correct voltages. There are resistors in line with each of the voltage rails that can be used as probe points. These are shown on page 3 of the schematic. 

    The AMIC110 requires a JTAG connection to download software to the SPI memory so an XDS100 or an XDS200 emulation pod will be needed.  Until you have the emulator pod it will be difficult to tell if there is a problem with the board.  

    Regards, Bill

  • 0 in reply to Gupta V V
    Intellectual 430 points

    hi Bill,

    Thank You for your response.

    I have measured the temperature up to which its getting heated up. i have attached that pic see once. that IC is heating to this temperature in just 10 sec when i power up the board. Is this not a problem? Can i Go head testing the voltages on the pin outs you specified(til now i haven't done that since i am afraid about that temperature and switching off the power supply). 

  • 0 in reply to Gupta V V
    TI__Mastermind 42545 points

    Hi Gupta,

    PMIC power supplies are densely populated components and will generate significant heat. I'm not too concerned about the 38 degrees you are displaying. It will also heat quickly since the power supplies will become active as soon as the external supply is applied to the board. Does the power supply stabilize at that temperature or continue to rise?  I would go ahead an measure the output voltages.  That should give us an indication concerning whether the power supply is operating correctly.

    Regards, Bill

  • 0 in reply to Bill Taboada
    Intellectual 430 points

    Hi Bill,

    I have Measured the Voltages, All Voltages Levels are as per the Specifications. So I think there is no problem with the board. Now I can buy the debugger and start programming.

    One more small doubt i Have, 

    In the user guide they have mentioned that we can use XDS100 or XDS200 debugger. Can you suggest me which is the best one? Why?

    Thanks a lot For your support Bill. I hope your cooperation will be like this in the coming future also. 

  • 0 in reply to Gupta V V
    TI__Mastermind 42545 points

    Hi Gupta,

    I'm not a software person but the main differences is the communications and download speed. The XDS100 is generally obsolete at this time but we are including XDS110 emulation into most of our newer EVM platform. It is good for getting started with the board and doing some basic code download and debug.  I am currently running CCS r8 and I found that the XDS110 is a supported emulator for the AMIC110.  If you are planning on doing any serious programming where the program downloads are significant I would suggest investing in the XDS200.  That is the version that most of the software developers here at TI are using.  I checked the cost on Digikey and found that the XDS110 is around $100 and the XDS200 is around $300 so it will depend on your budget. 

    Good luck with your project.

    Regards, Bill

  • 0 in reply to Bill Taboada
    Intellectual 430 points

    Thanks a lot bill for your support..

    I have ordered XDS200 from TI store.