SFFS990 May   2026 UCC27614-Q1

 

  1.   1
  2.   Trademarks
  3. 1Overview
  4. 2Functional Safety Failure In Time (FIT) Rates
    1. 2.1 DSG (SON 8) Package
    2. 2.2 D (SOIC 8) Package
    3. 2.3 DGN (VSSOP 8) Package
  5. 3Failure Mode Distribution (FMD)
  6. 4Pin Failure Mode Analysis (Pin FMA)
    1. 4.1 DSG (SON 8) Package
    2. 4.2 D (SOIC 8) and DGN (VSSOP 8) Package
  7. 5Revision History

4.2 D (SOIC 8) and DGN (VSSOP 8) Package

Figure 4-2 and Figure 4-3 show the UCC27614-Q1 pin diagrams for the D (SOIC 8) and DGN (VSSOP 8) packages. For a detailed description of the device pins, see the Pin Configuration and Functions section in the UCC27614-Q1 datasheet.

Figure 4-2 Pin Diagram (D (SOIC 8) Package)
Figure 4-3 Pin Diagram (DGN (VSSOP 8) Package)
Table 4-6 Pin FMA for Device Pins Short-Circuited to Ground
Pin NamePin No.Description of Potential Failure EffectsFailure Effect Class
VDD1There is an undervoltage event on the VDD pin. The OUT pin is off.B
IN2The function of the IN pin is lost. The OUT pin is stuck low.B
EN3The function of the EN pin is disabled. The OUT pin does not respond to the IN pin.B
GND4There is no impact to the device.D
GND5There is no impact to the device.D
OUT6The OUT pin is stuck low. The OUT pin is shorted if the IN pin is commanded High.A
OUT7The OUT pin is stuck low. The OUT pin is shorted if the IN pin is commanded High.A
VDD8There is an undervoltage event on the VDD pin. The OUT pin is off.B
Table 4-7 Pin FMA for Device Pins Open-Circuited
Pin Name Pin No. Description of Potential Failure Effects Failure Effect Class
VDD 1 There is an undervoltage event on the VDD pin. The OUT pin is off. B
IN 2 The function of the IN pin is lost. The OUT pin is stuck low. B
EN 3 The OUT pin is always enabled. The OUT pin responds to the IN pin. B
GND 4 The state of the OUT pin is unknown. B
GND 5 The state of the OUT pin is unknown. B
OUT 6 The OUT pin is disconnected from the power FET. B
OUT 7 The OUT pin is disconnected from the power FET. B
VDD 8 There is an undervoltage event on the VDD pin. The OUT pin is off. B
Table 4-8 Pin FMA for Device Pins Short-Circuited to Adjacent Pin
Pin NamePin No.Shorted toDescription of Potential Failure EffectsFailure Effect Class
VDD1INThe OUT pin is stuck high.B
IN2ENThe EN pin cannot override the command of the IN pin. The OUT pin responds to the IN pin.B
EN3GNDThe function of the EN pin is disabled. The OUT pin does not respond to the IN pin.B
GND5OUTThe OUT pin is stuck low. The OUT pin is short circuited if the IN pin is commanded High.A
OUT6OUTThere is no impact to the device.D
OUT7VDDThe OUT pin is stuck high.A
Table 4-9 Pin FMA for Device Pins Short-Circuited to Supply
Pin Name Pin No. Description of Potential Failure Effects Failure Effect Class
VDD 1 There is no impact to the device. D
IN 2 The OUT pin is stuck high. B
EN 3 The OUT pin is always enabled. The OUT pin responds to the IN pin. B
GND 4 The power supply is short circuited. B
GND 5 The power supply is short circuited. B
OUT 6 The OUT pin is stuck high. A
OUT 7 The OUT pin is stuck high. A
VDD 8 There is no impact to the device. D