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

4.1 DSG (SON 8) Package

Figure 4-1 shows the UCC27614-Q1 pin diagram for the DSG (SON 8) package. For a detailed description of the device pins, see the Pin Configuration and Functions section in the UCC27614-Q1 datasheet.

UCC27614-Q1 Pin Diagram (DSG (SON 8) Package)Figure 4-1 Pin Diagram (DSG (SON 8) Package)
Table 4-2 Pin FMA for Device Pins Short-Circuited to Ground
Pin NamePin No.Description of Potential Failure EffectsFailure Effect Class
IN+1The function of the IN+ pin is lost. The OUT pin is stuck low.B
GND2There is no impact to the device.D
GND3There is no impact to the device.D
OUT4The OUT pin is stuck low.A
OUT5The OUT pin is stuck low.A
VDD6There is an undervoltage event on the VDD pin. The OUT pin is off.B
VDD7There is an undervoltage event on the VDD pin. The OUT pin is off.B
IN-8The function of the IN- pin is lost. The OUT pin is stuck high.B
Table 4-3 Pin FMA for Device Pins Open-Circuited
Pin NamePin No.Description of Potential Failure EffectsFailure Effect Class
IN+1The function of the IN+ pin is lost. The OUT pin is stuck low.B
GND2The state of the OUTA and OUTB pins is unknown.B
GND3The state of the OUTA and OUTB pins is unknown.B
OUT4The OUT pin is disconnected from the power FET.B
OUT5The OUT pin is disconnected from the power FET.B
VDD6There is an undervoltage event on the VDD pin. The OUT pin is off.B
VDD7There is an undervoltage event on the VDD pin. The OUT pin is off.B
IN-8The function of the IN- pin is lost. The OUT pin is stuck low.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
IN+1GNDThe OUT pin is stuck low.B
GND2GNDThere is no impact to the device.D
GND3OUTThe OUT pin is stuck low.B
OUT5VDDThe OUT pin is stuck high.A
VDD6VDDThere is no impact to the device.D
VDD7IN-The OUT pin is stuck low.B
Table 4-5 Pin FMA for Device Pins Short-Circuited to Supply
Pin NamePin No.Description of Potential Failure EffectsFailure Effect Class
IN+1The OUT pin is stuck high.B
GND2The power supply is short circuited.B
GND3The power supply is short circuited.B
OUT4The OUT pin is stuck high.A
OUT5The OUT pin is stuck high.A
VDD6There is no impact to the device.D
VDD7There is no impact to the device.D
IN-8The OUT pin is stuck low.B