SFFSAY5 February   2026 UCC34141-Q1

 

  1.   1
  2.   Trademarks
  3. 1Overview
  4. 2Functional Safety Failure In Time (FIT) Rates
    1. 2.1 DHA-16 Package
  5. 3Failure Mode Distribution (FMD)
  6. 4Pin Failure Mode Analysis (Pin FMA)
    1. 4.1 DHA-16 Package
  7. 5Revision History

4.1 DHA-16 Package

Figure 4-1 shows the UCC34141-Q1 pin diagram for the DHA-16 package. For a detailed description of the device pins, see the Pin Configuration and Functions section in the UCC34141-Q1 datasheet.

Figure 4-1 Pin Diagram (DHA-16) Package
Table 4-2 Pin FMA for Device Pins Short-Circuited to Ground
Pin NamePin No.Description of Potential Failure EffectsFailure Effect Class
ENA1The device is disabled. There is no output.B
PG (PG)2The power good signal is always low. The MCU cannot detect the status of the bias supply.C
VIN3The device is not powered. There is no output.B
VIN4The device is not powered. There is no output.B
GNDP5There is no effect on the device.D
GNDP6There is no effect on the device.D
GNDP7There is no effect on the device.D
GNDP8There is no effect on the device.D
COMA9There is no effect on the device.D
COM10There is no effect on the device.D
COM11There is no effect on the device.D
VDD12The device is disabled. There is no output.B
BSW13The device is disabled. There is no output.B
VEE14The device is disabled. There is no output.B
FBVDD15The device is disabled. There is no output.B
FBVEE16The device is disabled. There is no output.B
Table 4-3 Pin FMA for Device Pins Open-Circuited
Pin NamePin No.Description of Potential Failure EffectsFailure Effect Class
ENA 1 The state of the device is undetermined. The device can be on or off, depending on the noise on ENA pin. B
PG (PG) 2 The MCU cannot detect the status of the bias supply. C
VIN 3 There is no effect on the device. D
VIN 4 There is no effect on the device. D
GNDP 5 There is no effect on the device. D
GNDP 6 There is no effect on the device. D
GNDP 7 There is no effect on the device. D
GNDP 8 There is no effect on the device. D
COMA 9 The feedback reference voltage and the VDD regulation voltage have offset. B
COM 10 There is no effect on the device. D
COM 11 The power stage current goes through the internal diode. There is more noise on the feedback signals. C
VDD 12 The device is disabled. There is no output. B
BSW 13 The device is disabled. There is no output. B
VEE 14 The device is disabled. There is no output. B
FBVDD 15 The device is disabled. There is no output. B
FBVEE 16 The device is disabled. There is no output. 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
ENA1PG (PG)The device is disabled. There is no output.B
PG (PG)2VINThe absolute maximum rating is exceeded for the pin. Damage to the device is possible.A
VIN3VINThere is no effect on the device.D
VIN4GNDPThe device is not powered. There is no output.B
GNDP5GNDPThere is no effect on the device.D
GNDP6GNDPThere is no effect on the device.D
GNDP7GNDPThere is no effect on the device.D
GNDP8N/AN/AN/A
COMA9COMThere is no effect on the device.D
COM10COMThere is no effect on the device.D
COM11VDDThe device is disabled. There is no output.B
VDD12BSWThe device is disabled. There is no output.B
BSW13VEEThe device is disabled. There is no output.B
VEE14FBVDDThe device is disabled. There is no output.B
FBVDD15FBVEEThe device is disabled. There is no output.B
FBVEE16N/AN/AN/A
Table 4-5 Pin FMA for Device Pins Short-Circuited to Supply
Pin NamePin No.Description of Potential Failure EffectsFailure Effect Class
ENA 1 The absolute maximum rating is exceeded for the pin. Damage to the device is possible. A
PG (PG) 2 The absolute maximum rating is exceeded for the pin. Damage to the device is possible. A
VIN 3 There is no effect on the device. D
VIN 4 There is no effect on the device. D
GNDP 5 The device is not powered. There is no output. B
GNDP 6 The device is not powered. There is no output. B
GNDP 7 The device is not powered. There is no output. B
GNDP 8 The device is not powered. There is no output. B
COMA 9 The device is not powered. There is no output. B
COM 10 The device is disabled. There is no output. B
COM 11 The device is disabled. There is no output. B
VDD 12 There is no effect on the device. D
BSW 13 The device is disabled. There is no output. B
VEE 14 The device is disabled. There is no output. B
FBVDD 15 The device is disabled. There is no output. B
FBVEE 16 The absolute maximum rating is exceeded for the pin. Damage to the device is possible. A