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TPS548B28: Answer for CPR241109360

Part Number: TPS548B28

Tool/software:

CASE

SIGNALS

PIN

FA-0712388 

GND to P12V_STBY

10 TO GND

 

The Signal affected GND to P12V_STBY (Attached image), product affected UCSX-210C-M7=
                        Signal                    Measure
UTT:           P12V_STBY           0.393 ohm
KGU:         P12V_STBY          3.664 kohm

  • Hi Luis, 

    It looks like there is a short the HS FET of the device causing VIN shorting to ground. 

    Best,

    Ryan

  • Hello Ryan 

    Do you need more information for  CPR241109360 and issue me a Failure Analisys report? 

    Regards

  • Hi Luis, 

    Yes, do you have more information about how this happened?

    Best,

    Ryan

  • Hello Ryan 

    There are steps perfom during our analisys

    *- Visual inspection

    Result: PASSED. The Blade module did not show physical damage.

    - Review customer log

    Result: Failed.

    2024-07-25T14:19:49.504117+00:00 CMC NOCSN_ipwrmgr-5-CMC  825:jrpc_method_invoke_cjson_inout:Unable to reconnect session, -1, retry count 1#012

    2024-07-25T14:19:49.504139+00:00 CMC NOCSN_ipwrmgr-5-CMC  897:jrpc_method_invoke_str_inout: get_power_control_status doesn't return either response or error object#012

    2024-07-25T14:19:49.504158+00:00 CMC NOCSN_ipwrmgr-3-CMC  OBFL:445:pwrcap_get_pwrcons_data:Blade6:method:get_power_control_status: failed to get blade power status, method invoke issue jret: -1

    2024-07-25T14:19:49.504180+00:00 CMC NOCSN_ipwrmgr-6-CMC  518:clear_blade_state:Blade6: session closed, total times closed 1

    - Boot up in UCSM and review the status

    Result: FAILED. The unit does not turn on. It does not have LED lights on the front.

    - The blade shows no physical damage or abnormalities.

    - The drive is validated on a gold server without success.

    - The drive appears to be dead.

    - The unit showed low impedance in 12V power rail.

    Signal affected GND to P12V_STBY (Attached image)

                            Signal                    Measure

    UTT:              P12V_STBY           0.393 ohm

    GOLDEN:      P12V_STBY          3.664 kohm

    *U171

    CPN:  15-108556-01 

    DATE CODE: 2313

    LOT CODE: 3119183CD3

    SUPPLIER: TEXAS INSTRUMENTS

    TPS548B28RWW

  • Hi Luis, 

    It looks like someone is already assigned to this case and I have contacted them to email you about this. Closing this thread. 

    Best,

    Ryan