This section provides a Failure Mode Analysis (FMA) for the pins of the UCC27282-Q1 (SOIC and VSON package). The failure modes covered in this document include the typical pin-by-pin failure scenarios:

• Pin short-circuited to Ground (see Table 1-8 and Table 1-12)
• Pin open-circuited (see Table 1-9 and Table 1-13)
• Pin short-circuited to an adjacent pin (see Table 1-10 and Table 1-14)
• Pin short-circuited to supply (see Table 1-11 and Table 1-15)

Table 1-8 through Table 1-15 also indicate how these pin conditions can affect the device as per the failure effects classification in Table 1-7.

Following are the assumptions of use and the device configuration assumed for the pin FMA in this section:

• SOIC :Pin#1-4, Short to VDD is considered.
• SOIC :Pin#5-6. Short to 5v such as MCU or controller I/O supply is considered.
• SOIC :VSS is assumed to be a ground plane.
• VSON :Pin#1-5 and 10, Short to VDD is considered.
• VSON :Pin#6-8. Short to 5v such as MCU or controller I/O supply is considered.
• VSON :VSS is assumed to be a ground plane.