4 Pin Failure Mode Analysis (Pin FMA)

This section provides a failure mode analysis (FMA) for the pins of the TPS7E82-Q1 (DBV (SOT-23, 5), DRV (WSON, 6), and DGN (HVSSOP, 8) packages). The failure modes covered in this document include the typical pin-by-pin failure scenarios:

• DBV and A-Version DBV:
  • Pin short-circuited to ground (see Table 4-2 and Table 4-3)
  • Pin open-circuited (see Table 4-4 and Table 4-5)
  • Pin short-circuited to an adjacent pin (see Table 4-6 and Table 4-7)
  • Pin short-circuited to V_BAT (see Table 4-8 and Table 4-9)
• DRV and A-Version DRV:
  • Pin short-circuited to ground (see Table 4-18 and Table 4-11)
  • Pin open-circuited (see Table 4-12 and Table 4-13)
  • Pin short-circuited to an adjacent pin (see Table 4-20 and Table 4-15)
  • Pin short-circuited to V_BAT (see Table 4-16 and Table 4-17)
• DGN:
  • Pin short-circuited to ground (see Table 4-18)
  • Pin open-circuited (see Table 4-19)
  • Pin short-circuited to an adjacent pin (see Table 4-20)
  • Pin short-circuited to V_BAT (see Table 4-21)

Table 4-2 through Table 4-21 also indicate how these pin conditions can affect the device as per the failure effects classification in Table 4-1.