SFFS483 November   2022 UCC14240-Q1 , UCC14241-Q1

PRODUCTION DATA  

  1.   Trademarks
  2. 1Overview
  3. 2Functional Safety Failure In Time (FIT) Rates
    1. 2.1 DWN-36 Package
  4. 3Failure Mode Distribution (FMD)
  5. 4Pin Failure Mode Analysis (Pin FMA)
    1. 4.1 DWN-36 Package

4.1 DWN-36 Package

Figure 4-1 shows the UCC1424x-Q1 pin diagram for the DWN-36 package. For a detailed description of the device pins, see the Pin Configuration and Functions section in the UCC1424x-Q1 data sheet.

Figure 4-1 Pin Diagram (DWN-36) 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
GNDP1No effect.D
GNDP2No effect.D
PG3PG is always low. MCU can't detect the status of the bias supply.C
ENA4Device is disabled. No output.B
GNDP5No effect.D
VIN6Device is not powered. No output.B
VIN7Device is not powered. No output.B
GNDP8No effect.D
GNDP9No effect.D
GNDP10No effect.D
GNDP 11 No effect. D
GNDP 12 No effect. D
GNDP 13 No effect. D
GNDP 14 No effect. D
GNDP 15 No effect. D
GNDP 16 No effect. D
GNDP 17 No effect. D
GNDP 18 No effect. D
VEE 19 No effect. D
VEE 20 No effect. D
VEE 21 No effect. D
VEE 22 No effect. D
VEE 23 No effect. D
VEE 24 No effect. D
VEE 25 No effect. D
VEE 26 No effect.
VEE 27 No effect. D
VDD 28 Device is disabled. No output. B
VDD 29 Device is disabled. No output. B
VEE 30 No effect. D
VEE 31 No effect. D
RLIM 32 Device is disabled. No output. B
FBVEE 33 Device is disabled. No output. B
FBVDD 34 Device is disabled. No output. B
VEEA 35 No effect. D
VEE 36 No effect. D
Table 4-3 Pin FMA for Device Pins Open-Circuited
Pin Name Pin No. Description of Potential Failure Effect(s) Failure Effect Class
GNDP 1 No effect. D
GNDP 2 No effect. D
PG 3 MCU can't detect the status of the bias supply. C
ENA 4 Undetermined state. The device could be on or off, depending on the noise on ENA pin. B
GNDP 5 No effect. D
VIN 6 Device is disabled. No output. B
VIN 7 Device is disabled. No output. B
GNDP 8 Voltage ringing will increase above normal increasing voltage stress at maximum VIN voltage. C
GNDP 9 Voltage ringing will increase above normal increasing voltage stress at maximum VIN voltage. C
GNDP 10 No effect. D
GNDP 11 No effect. D
GNDP 12 No effect. D
GNDP 13 No effect. D
GNDP 14 No effect. D
GNDP 15 No effect. D
GNDP 16 No effect. D
GNDP 17 No effect. D
GNDP 18 No effect. D
VEE 19 No effect. D
VEE 20 No effect. D
VEE 21 No effect. D
VEE 22 No effect. D
VEE 23 No effect. D
VEE 24 No effect. D
VEE 25 No effect. D
VEE 26 No effect. D
VEE 27 No effect. D
VDD 28 Voltage ringing will increase above normal increasing voltage stress at maximum VIN voltage. C
VDD 29 Voltage ringing will increase above normal increasing voltage stress at maximum VIN voltage. C
VEE 30 Voltage ringing will increase above normal increasing voltage stress at maximum VIN voltage. C
VEE 31 Voltage ringing will increase above normal increasing voltage stress at maximum VIN voltage. C
RLIM 32 Device is disabled. No output. B
FBVEE 33 Device is disabled. No output. B
FBVDD 34 Device is disabled. No output. B
VEEA 35 No effect. D
VEE 36 No effect. D
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
GNDP1GNDPNo effect.D
GNDP2PGDevice is disabled. No output.B
PG3ENADevice can't stay on because once output voltage is generated, PG will disable the deviceB
ENA4GNDPDevice is disabled. No output.B
GNDP5VINDevice is not powered. No output.B
VIN6VINNo effect.D
VIN7GNDPDevice is not powered. No output.B
GNDP8GNDPNo effect.D
GNDP9GNDPNo effect.D
GNDP10GNDPNo effect.D
GNDP 11 GNDP No effect. D
GNDP 12 GNDP No effect. D
GNDP 13 GNDP No effect. D
GNDP 14 GNDP No effect. D
GNDP 15 GNDP No effect. D
GNDP 16 GNDP No effect. D
GNDP 17 GNDP No effect. D
GNDP 18 N/A N/A N/A
VEE 19 VEE No effect. D
VEE 20 VEE No effect. D
VEE 21 VEE No effect. D
VEE 22 VEE No effect. D
VEE 23 VEE No effect. D
VEE 24 VEE No effect. D
VEE 25 VEE No effect. D
VEE 26 VEE No effect. D
VEE 27 VDD Device is disabled. No output. B
VDD 28 VDD No effect. D
VDD 29 VEE Device is disabled. No output. B
VEE 30 VEE No effect. D
VEE 31 RLIM Device is disabled. No output. B
RLIM 32 FBVEE RLIM will not regulate correctly. B
FBVEE 33 FBVDD VDD and RLIM can't regulate correctly. B
FBVDD 34 VEEA Device is disabled. No output. B
VEEA 35 VEE No effect. D
VEE 36 N/A N/A N/A
Table 4-5 Pin FMA for Device Pins Short-Circuited to supply
Pin Name Pin No. Description of Potential Failure Effect(s) Failure Effect Class
GNDP 1 Device is not powered. No output. B
GNDP 2 Device is not powered. No output. B
PG 3 Exceed pin abs. max rating. Device damage is possible. A
ENA 4 Device is always enabled. Pin voltage exceeds abs. max rating. Device damage is possible. A
GNDP 5 Device is not powered. No output. B
VIN 6 No effect. D
VIN 7 No effect. D
GNDP 8 Device is not powered. No output. B
GNDP 9 Device is not powered. No output. B
GNDP 10 Device is not powered. No output. B
GNDP 11 Device is not powered. No output. B
GNDP 12 Device is not powered. No output. B
GNDP 13 Device is not powered. No output. B
GNDP 14 Device is not powered. No output. B
GNDP 15 Device is not powered. No output. B
GNDP 16 Device is not powered. No output. B
GNDP 17 Device is not powered. No output. B
GNDP 18 Device is not powered. No output. B
VEE 19 Device is disabled. No output. B
VEE 20 Device is disabled. No output. B
VEE 21 Device is disabled. No output. B
VEE 22 Device is disabled. No output. B
VEE 23 Device is disabled. No output. B
VEE 24 Device is disabled. No output. B
VEE 25 Device is disabled. No output. B
VEE 26 Device is disabled. No output. B
VEE 27 Device is disabled. No output. B
VDD 28 No effect. D
VDD 29 No effect. D
VEE 30 Device is disabled. No output. B
VEE 31 Device is disabled. No output. B
RLIM 32 Device is disabled. No output. B
FBVEE 33 Device is disabled. No output. B
FBVDD 34 Device is disabled. No output. B
VEEA 35 Device is disabled. No output. B
VEE 36 Device is disabled. No output. B