SBOA412 August   2020 TLV314-Q1

 

  1.   Trademarks
  2. 1Overview
  3. 2Functional Safety Failure In Time (FIT) Rates
    1. 2.1 SC70-5 Package
    2. 2.2 SOT-23 Package
  4. 3Failure Mode Distribution (FMD)
  5. 4Pin Failure Mode Analysis (Pin FMA)
    1. 4.1 SC70-5 Package
    2. 4.2 SOT-23 Package

4.1 SC70-5 Package

Figure 4-1 shows the TLV314-Q1 pin diagram for the SC70-5 package. For a detailed description of the device pins please refer to the Pin Configuration and Functions section in the TLV314-Q1 data sheet.

GUID-DE5AAE34-2153-451D-9631-2D29E341B6D5-low.gifFigure 4-1 Pin Diagram (SC70-5) Package
Table 4-2 Pin FMA for Device Pins Short-Circuited to Ground
Pin NamePin No.Description of Potential Failure Effect(s)Failure Effect Class
+IN1

Input at V- (GND) is valid input, however, desired application result is unlikely. Output goes low if -IN is greater than zero volts.

B

V-

2

Normal operation, unless dual supply voltage was intended.

D

-IN3

Input at V- (GND) is valid input, however, desired application result is unlikely. Output goes high if +IN is greater than zero volts.

C
OUT4May cause device to overheat.B
V+5Diodes from input to V+ may turn on due to input signal and cause electrical overstress (EOS). Main supply shorted. No power to device.B
Table 4-3 Pin FMA for Device Pins Open-Circuited
Pin NamePin No.Description of Potential Failure Effect(s)Failure Effect Class
+IN1Floating input, circuit will likely not function as expected. Output may be high or low.

C

V-

2

Lowest voltage pin will drive V- pin internally via internal diode.

B

-IN3Floating input, circuit will likely not function as expected. Output may be high or low.

C

OUT4Output cannot be used by application.

C

V+5Highest voltage pin will drive V+ pin internally via internal diode.B
Table 4-4 Pin FMA for Device Pins Short-Circuited to Adjacent Pin
Pin NamePin No.Shorted toDescription of Potential Failure Effect(s)Failure Effect Class
+IN1

V-

Input at V- (GND) is valid input, however, desired application result is unlikely. Output goes low if -IN is greater than zero volts.C

V-

2-IN

Input at V- (GND) is valid input, however, desired application result is unlikely. Output goes high if +IN is greater than zero volts.

C

-IN

3OUT

Op amp configured as unity gain buffer. Pins are not adjacent to each other.

C
OUT4V+Output shorted to supply. May cause device to overheat.B

V+

5+INInput at V+ is valid input, however, desired application result is unlikely. Output goes high if -IN is less than V+. Pins are not adjacent to each other.C
Table 4-5 Pin FMA for Device Pins Short-Circuited to supply
Pin NamePin No.Description of Potential Failure Effect(s)Failure Effect Class
+IN1

Input at V+ is valid input, however, desired application result is unlikely. Output goes high if -IN is less than supply.

C

V-

2

Main supply shorted to V- (GND). No power to device.

C
-IN3Input at V+ is valid input, however, desired application result is unlikely. Output goes low if +IN is less than supply. C
OUT4May cause device to overheat.B
V+5Normal operation if V+ is equal to supply.D