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Original question:

UCD9248: UCD9248 POWER_GOOD# XILINX ZC702 Board

UCD9248: UCD9248 occur POWER_GOOD# warning Xilinx VC709 Board

Lyndon Liu
Prodigy 50 points
Part Number: UCD9248
Other Parts Discussed in Thread: PTD08D210W, PTD08A020W,

Dear Sir,

Based on the Xilinx's VC709 board, i have designed a mother board. Using three UCD9248 chip to controlling PTD08A020W and PTD08D210W power module, the total design voltage rails are 11, shown as in the pictures.

There are only 3 rails voltage output, other rails are not working. I checked the status by Fusion Design Tool of TI and found a warning occurred with POWER_GOOD#.

  • 0
    TI__Expert 7380 points

    Hi, Lyndon,

    Please check your voltage setup (PG on, PG off, Vout,...), as well as rails' dependencies.

    Regards

    Anne Ngo

    Texas Instruments

  • 0 in reply to Anne Ngo77
    Prodigy 50 points

    Hi Anne,

    Thanks for your reply. 

    There are 11 rails voltage in design, only 3 rails voltage output normally. The 3 rails are 1.0V(52d: Rail #1, 53d: Rail #3, 54d: Rail: Rail #2). The following show the related of setup. And also upload the compressed configuration files of UCD9248 in the attachement, which are exported by Fusion Digital Power Designer Tool. 

    Pls help to check, Thanks!

    UCD9248 52d: Rail #1, voltage output is normal

    UCD9248 52d: Rail #2

    UCD9248 52d: Rail #3

    UCD9248 53d: Rai #1

    UCD9248 53d: Rail #2

    UCD9248 53d: Rail #3  voltage output is normal

    UCD9248 53d: Rail #4

    UCD9248 54d: Rail #1

    UCD9248 54d: Rail #2, the voltage output is normal

    UCD9248 54d: Rail #3

    UCD9248 54d: Rail #4

     

    UCD9248 @ PMBus Address 52d&53d&54d Projects.zip

     

    Lyndon

  • 0 in reply to Anne Ngo77
    Prodigy 50 points

    Hi Anne,

    I have tested the related voltage point of two board, one is my design board(originqc), another is xilinx VC709 board. The test voltage show as in below tables.

    The configuration files of my board is same with Xilinx VC709. Xilinx VC709 board connected to PC through TI Interface Adapter, and Save System File to local, then import the saved file to my board. The Xilinx VC709 board can power up normally, but my board only 3 rails run. 

    Thanks!

    52d: PTD08A020W U16 U25
    No. Name ORIGINQC Xilinx VC709
    PIN1 VI 12.31 V 12.25 V
    PIN12 VBIAS
    PIN11 PWM OFF ON / 505.8KHZ
    PIN10 SRE 0 V 3.428 V
    PIN9 FAULT 0 V 0 V
    PIN8 INH_B 5.0 V 5.05 V
    PIN4 VO 0 V 1.038 V
    PIN5 TEMP 0.875 V 0.931 V
    PIN6 IOUT 0.151 V 0.67 V
    52d: PTD08D210W U2 U20
    No. Name ORIGINQC Xilinx VC709
    PIN1 VIN 12.172 V 12.25 V
    PIN2 VIN 　
    PIN18 PWM_A 0FF ON / 758.2KHZ
    PIN17 SRE_A 0 V 3.427 V
    PIN15 FF_A 0 V 0 V
    PIN14 ISENSE_A 0 V 0.18 V
    PIN21 VO_A1 0 V 1.85 V
    PIN22 VO_A2
    PIN4 PWM_B 0 V ON / 758.2KHZ
    PIN5 SRE_B 0 V 3.42 V
    PIN7 FF_B 0 V 0 V
    PIN6 ISENSE_B 0 V 0.376 V
    PIN10 VO_B1 0 V 3.32 V
    PIN11 VO_B2
    PIN16 TSENSE 0.837 V 1.11 V
    53d: PTD08D210W U5 U21
    No. Name ORIGINQC Xilinx VC709
    PIN1 VIN 12.170 V 12.25 V
    PIN2 VIN
    PIN18 PWM_A 0 V ON / 746.2KHZ
    PIN17 SRE_A 0 V 3.42 V
    PIN15 FF_A 0 V 0 V
    PIN14 ISENSE_A 0 V 0.27 V
    PIN21 VO_A1 0V 2.52 V
    PIN22 VO_A2
    PIN4 PWM_B 0 V 745.9 KHZ
    PIN5 SRE_B 0 V 3.42 V
    PIN7 FF_B 0 V 0 V
    PIN6 ISENSE_B 0 V 0.27 V
    PIN10 VO_B1 0 V 1.54 V
    PIN11 VO_B2
    PIN16 TSENSE 0.873 V 1.08 V
    53d: PTD08D210W U8 U22
    No. Name ORIGINQC Xilinx VC709
    PIN1 VIN 12.164 V 12.25 V
    PIN2 VIN
    PIN18 PWM_A ON / 503.42KHz ON / 496.5KHZ
    PIN17 SRE_A 3.45 V 3.42 V
    PIN15 FF_A 0 V 0 V
    PIN14 ISENSE_A 0.261 V 0.230 V
    PIN21 VO_A1 1.054 V 1.04 V
    PIN22 VO_A2
    PIN4 PWM_B OFF ON / 496.03KHZ
    PIN5 SRE_B 0 V 0 V
    PIN7 FF_B 0 V 0 V
    PIN6 ISENSE_B 0 V 0.242 V
    PIN10 VO_B1 0.175 V 1.23 V
    PIN11 VO_B2
    PIN16 TSENSE 1.04 V 1.03 V
    54d: PTD08D210W U11 U62
    No. Name ORIGINQC Xilinx VC709
    PIN1 VIN 12.168 V 12.27 V
    PIN2 VIN 　
    PIN18 PWM_A OFF ON / 750KHZ
    PIN17 SRE_A 0 V 3.42 V
    PIN15 FF_A 0 V 0 V
    PIN14 ISENSE_A 0 V 0.24 V
    PIN21 VO_A1 0 V 2.03 V
    PIN22 VO_A2
    PIN4 PWM_B ON / 757KHZ ON / 756KHZ
    PIN5 SRE_B 3.431 V 3.42 V
    PIN7 FF_B 0 V 0 V
    PIN6 ISENSE_B 0.2 V 0.197 V
    PIN10 VO_B1 1.051 V 1.03 V
    PIN11 VO_B2
    PIN16 TSENSE 0.06 V 1.04 V
    54d: PTD08D210W U13 U63
    No. Name ORIGINQC Xilinx VC709
    PIN1 VIN 12.180 V 12.25 V
    PIN2 VIN
    PIN18 PWM_A OFF ON / 755KHZ
    PIN17 SRE_A 0 V 3.42 V
    PIN15 FF_A 0 V 0 V
    PIN14 ISENSE_A 0 V 0 V
    PIN21 VO_A1 0 V 1.83 V
    PIN22 VO_A2
    PIN4 PWM_B 0 V ON / 752KHZ
    PIN5 SRE_B 0 V 3.42 V
    PIN7 FF_B 0 V 0 V
    PIN6 ISENSE_B 0 V 0.28 V
    PIN10 VO_B1 0 V 1.85 V
    PIN11 VO_B2
    PIN16 TSENSE 0.879 V 1.05 V

    Lyndon

  • 0 in reply to Lyndon Liu
    TI__Expert 7380 points

    Hi, Lyndon,

    We will have a look and get back with you.

    Regards

    Anne Ngo

    Texas Instruments

  • 0
    TI__Intellectual 2060 points

    Hi Lyndon,

    Just to clarify, you are using the same configuration files on both the Xilinx board as well as your own board, correct?

    If this is the case, it might be a hardware issue. Could you share the schematic of your board?

    Regards,

    Chris Bartuska

  • 0 in reply to Anne Ngo77
    Prodigy 50 points

    Hi Anne,

    Many thanks! If found any different, pls notice to me. 

    Thanks!

    Lyndon

  • 0 in reply to Chris Bartuska
    Prodigy 50 points

    Hi Chris,

    Thanks for your reply!

    Yes, the two boards are used the same configuration file. 

    I sent the shematic design file to you by e-mail. Pls help to check. 

    Thanks!

    Lyndon

  • 0 in reply to Lyndon Liu
    TI__Guru 60800 points

    Hi

    This issue has been discussed via email and will update once the issue is closed.

    Regards

    Yihe