4 Pin Failure Mode Analysis (Pin FMA)

This section provides a Failure Mode Analysis (FMA) for the pins of the TPS3760. The failure modes covered in this document include the typical pin-by-pin failure scenarios:

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

Table 4-2 through Table 4-5 also indicate how these pin conditions can affect the device as per the failure effects classification in Table 4-1.

Figure 4-1 shows the TPS3760 pin diagram. For a detailed description of the device pins please refer to TPS3760 in the Pin Configuration and Functions section of the data sheet.

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

• RESET are pictured as active low, some configurations (RESET) will be active low. RESET in Figure 4-1 is shown as open-drain, some configurations will be push-pull. Refer to TPS3760 Pin Configuration and Functions section of the data sheet.
• At V_{DD (MIN)} ≤ VDD ≤ V_{DD (MAX)}, CTR = CTS = Open
• Output reset Pullup Resistor (R_PULLUP) = 10 kΩ, Output reset pullup voltage (V_PULLUP = 5.5 V, output reset load (C_LOAD) = 10 pF.
• Tables valid over the operating free-air temperature range of – 40°C to 125°C, unless otherwise noted.
• Typical values are at T_A = 25°C, VDD = 16 V, and V_IT = 6.5 V (V_IT refers to V_ITN or V_ITP) unless stated otherwise.