Parameter NameParameter Symbol ValueDescription Base Failure Rate λ b Voltage Regulator value Temperature FactorπTπT ° C Max Junction Temperature Electrical Stress FactorπSπS 1.0Voltage Regulator value Contact Construction FactorπCπC 1.0Metallurgically Bonded Quality FactorπQπQ 5.5Not military grade Environment FactorπEπE 6.0Ground, Fixed Failures per Million Hours:λ p = λ b π T π S π C π Q π E / 10 6 λ p =4.422 × 10 -7
Parameter NameParameter Symbol ValueDescription Die Complexity Failure Rate C Voltage Regulator value Temperature FactorπTπT ° C Max Junction Temperature Package Failure RateC2C2.032Voltage Regulator value Environment FactorπEπE 2.0Ground, Fixed Quality FactorπQπQ 5.5Not military grade Learning FactorπLπL 1Production > 2 years Failures per Million Hours:λ p = (C1π T + C 2 π E )π Q π L / 10 6 λ p = × 10 -7
Parameter NameParameter Symbol ValueDescription Base Failure Rate λ b Voltage Regulator value Temperature FactorπTπT ° C Max Junction Temperature Application FactorπAπA 8.0Voltage Regulator value Quality FactorπQπQ 5.5Not military grade Environment FactorπEπE 6.0Ground, Fixed Failures per Million Hours:λ p = λ b π T π A π Q π E / 10 6 λ p = × 10 -6
Failure Numbe r Failure ModePossible Cause Possible Effects CriticalityProbability A1Output > 3.3/5 VPower Supply component failures Oversupply other parts, causing failure Medium4.422 × B1Output constant 1 Software, peripheral failure Constant motor running Low × C1Switch stuck open/closed Surrounding component failure Unexpected motor behavior Low × 10 -6