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Pin FMEA of Vybrid

Question asked by Takashi Takahashi on Jun 21, 2016
Latest reply on Jun 27, 2016 by igorpadykov

Dear community.

Our customer has question below.

 

1, In power supply group, Pin Out single use only of the terminal (below exported terminal)
Would you please tell me the operation at the time of open failure.

V14  VBAT
T12  VDD33_LDOIN
P5  VDDREG
V1  VDDA33_ADC
W1  VREFH_ADC
V3  VDDA33_AFE
T5  VDD12_AFE
N7  FA_VDD
W11  USB0_VBUS
U9  USB1_VBUS

2, Terminals mulch function is allocated to a number pins
      ex. VDD33 K3 ~ W18
There are connected K3 ~ W18 is all on the internal BGA in the PCB( sub strate)?

Similarly, SDRAMC_VDD1P5, VDD, SDRAMC_VDD2P5, will also answer please.

3, would you please tell us about the behavior of each failure mode of the following terminal .

P5   VDDREG            OPEN failure and, please tell us about the function and use of this terminal.
T5   VDD12_AFE        GND Short.
T12  VDD33_LDOIN      Short of a T11 DECAPV25.
W2  ADC0SE9              OPEN failure and GND short, please tell us about the function and use of this terminal.
W14 LVDS0P                 3.3V  short, and GND short, please tell us about the function and use of this terminal.

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