SFFSA81 March   2025 OPA810-Q1

 

  1.   1
  2.   Trademarks
  3. 1Overview
  4. 2Functional Safety Failure In Time (FIT) Rates
    1. 2.1 SOT-23 | DBV Package
  5. 3Failure Mode Distribution (FMD)
  6. 4Pin Failure Mode Analysis (Pin FMA)
    1. 4.1 SOT-23 | DBV Package
  7. 5Revision History

4.1 SOT-23 | DBV Package

Figure 4-1 shows the OPA810-Q1 pin diagram for the SOT-23 | DBV package. For a detailed description of the device pins, see the Pin Configuration and Functions section in the OPA810-Q1 data sheet.

Figure 4-1 Pin Diagram (SOT-23 | DBV) Package
Table 4-2 Pin FMA for Device Pins Short-Circuited to Ground
Pin NamePin No.Description of Potential Failure EffectsFailure Effect Class
VO1A short to GND can cause the device to overheat.B
VS-2Diodes from input to VS- can turn on due to an input signal and cause electrical overstress (EOS). Normal operation if a single supply voltage is intended.A
VIN+3An input at GND (mid-supply) is a valid input, however, the desired application result is unlikely.C
VIN-4An input at GND (mid-supply) is a valid input, however, the desired application result is unlikely.C
VS+5Diodes from input to VS+ can turn on due to an input signal and cause electrical overstress (EOS).A
Table 4-3 Pin FMA for Device Pins Open-Circuited
Pin NamePin No.Description of Potential Failure EffectsFailure Effect Class
VO1The output can be left open. There is no effect on the device, but the output is not measured.C
VS-2The lowest voltage output pin tries to power the VS- pin of the device.B
VIN+3Floating input, circuit likely does not function as expected.C
VIN-4Floating input, circuit likely does not function as expected.C
VS+5The highest voltage output pin tries to power the VS+ pin of the device.B
Table 4-4 Pin FMA for Device Pins Short-Circuited to Adjacent Pin
Pin NamePin No.Shorted toDescription of Potential Failure EffectsFailure Effect Class
VO1VS-A short to VS- can cause device to overheat.B
VS-2VIN+An input at VS- is a valid input, however, the desired application result is unlikely.C
VIN+3VIN-No damage to the device. The application circuit does not work. The pins are not physically near to each other.C
VIN-4VS+An input at VS+ is a valid input, however, the desired application result is unlikely. Pins are not as near to each other due to package type.B
VS+5VOA short to VS+ can cause the device to overheat. The pins are not physically near to each other.B
Table 4-5 Pin FMA for Device Pins Short-Circuited to V+
Pin NamePin No.Description of Potential Failure EffectsFailure Effect Class
VO1A short to VS+ can cause the device to overheat.B
VS-2Diodes from input to VS- can turn on due to an input signal and cause electrical overstress (EOS).A
VIN+3An input at VS+ is a valid input, however, the desired application result is unlikely.C
VIN-4An input at VS+ is a valid input, however, the desired application result is unlikely.C
VS+5Normal operation.D