SLVAEK9A December   2019  – November 2020 TPS62160-Q1 , TPS62162-Q1

 

  1.   Trademarks
  2. 1Overview
  3. 2Functional Safety Failure In Time (FIT) Rates
  4. 3Failure Mode Distribution (FMD)
  5. 4Pin Failure Mode Analysis (Pin FMA)
    1. 4.1 Pin Failure Mode Analysis for TPS62160-Q1
    2. 4.2 Pin Failure Mode Analysis for TPS62162-Q1
  6. 5Revision History

4.2 Pin Failure Mode Analysis for TPS62162-Q1

Table 4-6 Pin FMA for TPS62162-Q1 Pins Short-Circuited to Ground
Pin Name Pin No. Description of Potential Failure Effect(s) Failure Effect Class
PGND 1 No effect D
VIN 2 Device does not power up B
EN 3 Device does not power up B
AGND 4 No effect D
FB 5 No effect D
VOS 6 Loss of VOUT regulation B
SW 7 Potential device damage A
PG 8 Loss of power good Indication C
Table 4-7 Pin FMA for TPS62162-Q1 Pins Open-Circuited
Pin Name Pin No. Description of Potential Failure Effect(s) Failure Effect Class
PGND 1 Output regulation normal, potential impact to reliability of power FETs C
VIN 2 Device does not power up B
EN 3 Device does not power up B
AGND 4 Output regulation normal, potential noise issues/jitter C
FB 5 No effect D
VOS 6 Open loop operation, Undetermined output voltage behavior B
SW 7 Device not functional B
PG 8 Loss of power good indication C
Table 4-8 Pin FMA for TPS62162-Q1 Pins Short-Circuited to Adjacent Pin
Pin Name Pin No. Shorted to Description of Potential Failure Effect(s) Failure Effect Class
PGND 1 VIN No output voltage B
VIN 2 EN Normal Operation D
EN 3 AGND No output voltage B
FB 5 VOS Loss of VOUT regulation B
VOS 6 SW Device Damage A
SW 7 PG Device Damage A
Table 4-9 Pin FMA for TPS62162-Q1 Pins Short-Circuited to Supply
Pin Name Pin No. Description of Potential Failure Effect(s) Failure Effect Class
PGND 1 No output voltage B
VIN 2 Normal Operation D
EN 3 Normal Operation D
AGND 4 No output voltage B
FB 5 Possible device damage(1): Abs max may be exceeded
Loss of VOUT regulation		 A
VOS 6 Possible device damage(1): Abs max may be exceeded
Loss of VOUT regulation		 A
SW 7 Device damage A
PG 8 Possible device damage(1): Abs max may be exceeded A
(1) Damage will occur if Vin is greater than the 7-V Absolute Maximum Rating for the pin.