SFFSB70 April   2026 TPS7E82-Q1

 

  1.   1
  2.   Trademarks
  3. 1Overview
  4. 2Functional Safety Failure In Time (FIT) Rates
  5. 3Failure Mode Distribution (FMD)
  6. 4Pin Failure Mode Analysis (Pin FMA)
    1. 4.1 DBV (SOT-23, 5) Package
    2. 4.2 DRV (WSON, 6) Package
    3. 4.3 DGN (HVSSOP, 8) Package
  7. 5Revision History

4.3 DGN (HVSSOP, 8) Package

Figure 4-3 shows the TPS7E82-Q1 pin diagram for the DGN (HVSSOP, 8) package. For a detailed description of the device pins please refer to the Pin Configuration and Functions section in the TPS7E82-Q1 datasheet.

Figure 4-5 Pin Diagram (DGN (HVSSOP, 8) Package)
Table 4-18 Pin FMA for Device Pins Short-Circuited to Ground
Pin NamePin No.Description of Potential Failure EffectsFailure Effect Class
IN1There is no power supplied to the device; resulting in no output voltage.B
EN2The device is stuck in shutdown mode; resulting in no output voltage.B
NC3There is no effect on the device. The device operates as normal.D
GND4There is no effect on the device. The device operates as normal.D
GND5There is no effect on the device. The device operates as normal.D
NC 6 There is no effect on the device. The device operates as normal. D
NC/ADJ 7 Fixed output: There is no effect on the device. The device operates as normal. D
Adjustable output: The device operates in dropout mode. VOUT follows VIN and equals VIN - VDO. B
OUT 8 The device is not operational with the output being pulled to GND. Current limit is triggered, and the device potentially repeats entering and exiting thermal shutdown depending on power dissipation. B
Table 4-19 Pin FMA for Device Pins Open-Circuited
Pin Name Pin No. Description of Potential Failure Effects Failure Effect Class
IN 1 There is no power supplied to the device; resulting in no output voltage. B
EN 2 The device has an internal pullup, and therefore, remains enabled. The device operates as normal unless the user attempts to disable the device. D
B
NC 3 There is no effect on the device. The device operates as normal. D
GND 4 There is no effect on the device. The device operates as normal since the device has an additional ground pin. D
GND 5 There is no effect on the device. The device operates as normal since the device has an additional ground pin. D
NC 6 There is no effect on the device. The device operates as normal. D
NC/ADJ 7 Fixed output: There is no effect on the device. The device operates as normal. D
Adjustable output: The input of the error amplifier is not connected, leaving VOUT in an indeterminate state. B
OUT 8 The device does not provide a regulated rail and is disconnected from the load. B
Table 4-20 Pin FMA for Device Pins Short-Circuited to Adjacent Pin
Pin Name Pin No. Shorted to Pin No. Description of Potential Failure Effects Failure Effect Class
IN 1 EN 2 The EN pin is pulled to the IN supply. Shutdown mode is not possible. The device is powered on as long as the input supply is present. D
B
EN 2 NC 3 There is no effect on the device. The device operates as normal. D
NC 3 GND 4 There is no effect on the device. The device operates as normal. D
GND 4 NC 5 There is no effect on the device. The device operates as normal. D
NC NC/ADJ Fixed output: There is no effect on the device. The device operates as normal. D
Adjustable output: There is no effect on the device. The device operates as normal. D
NC/ADJ OUT Fixed output: There is no effect on the device. The device operates as normal. D
Adjustable output: The feedback network is bypassed and the device operates in unity gain configuration. VOUT = Internal Bandgap VREF. B
Table 4-21 Pin FMA for Device Pins Short-Circuited to VBAT
Pin Name Pin No. Description of Potential Failure Effects Failure Effect Class
IN 1 The device operates as normal if already operating off-battery. If operating post-regulator, there is potentially increased power dissipation across the device and this potentially results in thermal shutdown. D
B
EN 2 The device remains enabled and survives the fault condition. The device operates as normal unless the user attempts to disable the device. D
B
NC 3 There is no effect on the device. The device operates as normal. D
GND 4 At a system level, this results in a flow of large currents and possible collapse of the input voltage to the LDO. In this type of scenario, there is no LDO output voltage. B
GND 5 At a system level, this results in a flow of large currents and possible collapse of the input voltage to the LDO. In this type of scenario, there is no LDO output voltage. B
NC 6 There is no effect on the device. The device operates as normal. D
NC/ADJ 7 Fixed output: There is no effect on the device. The device operates as normal. D
Adjustable output: This violates the absolute maximum rating of the ADJ pin and damages the device. A
OUT 8 If operating off-battery, the device survives this fault condition but does not provide a regulated rail. If operating post-regulator, this results in a flow of reverse current and damages the device. B
A