2 Pin Failure Mode Analysis (Pin FMA)

This section provides a Failure Mode Analysis (FMA) for the pins of the TPS62090-Q1. The failure modes covered in this document include the typical pin-by-pin failure scenarios:

• Pin short-circuited to Ground (see Table 2-2)
• Pin open-circuited (see Table 2-3)
• Pin short-circuited to an adjacent pin (see Table 2-4)
• Pin short-circuited to supply (see Table 2-5)

Table 2-2 through Table 2-5 also indicate how these pin conditions can affect the device as per the failure effects classification in Table 2-1.

Figure 2-1 shows the TPS62090-Q1 pin diagram. For a detailed description of the device pins please refer to the Pin Configuration and Functions section in the TPS62090-Q1 data sheet.

Figure 2-1 Pin Diagram

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

• Assumption the device is running in the typical application, please refer to the 'Simplified Schematics' on the first page in the TPS62090-Q1 3-A High-Efficient Synchronous Step-Down Converter With DCS-Control data sheet.