SLVAEM2A January   2020  – March 2021 TPS3700-Q1

 

  1.   Trademarks
  2. 1Overview
  3. 2Functional Safety Failure In Time (FIT) Rates
    1. 2.1 DDC Package
    2. 2.2 DSE Package
  4. 3Failure Mode Distribution (FMD)
  5. 4Pin Failure Mode Analysis (Pin FMA)
    1. 4.1 DDC Package
    2. 4.2 DSE Package

DDC Package

Figure 4-1 shows the TPS3700-Q1 pin diagram for the DDC package. For a detailed description of the device pins please refer to the Pin Configuration and Functions section in the TPS3700-Q1 data sheet.

GUID-C15EE746-D510-4C3E-9605-30BFAF92EFD3-low.gif Figure 4-1 Pin Diagram (DDC) Package)
SOT-6
Top View
Table 4-2 Pin FMA for Device Pins Short-Circuited to Ground
Pin NamePin No.Description of Potential Failure Effect(s)Failure Effect Class
OUTA1 No damage to device, undervoltage output pin nonfunctional, OUTA indicates an undervoltage fault, increase in system current due to current through OUTA pull-up resistorB
GND2Normal operation.D
INA+3No damage to device, undervoltage sense input pin nonfunctional, OUTA indicates undervoltage fault, increase in system current due to current through OUTA pull-up resistorB
INB-4No damage to device, overvoltage sense input pin nonfunctional, OUTB indicates no overvoltage fault.B
VDD5No damage to device, but device is unpowered. Device is nonfunctional.B
OUTB6No damage to device, overvoltage output pin nonfunctional, OUTB indicates an overvoltage fault, increase in system current due to current through OUTB pull-up resistorB
Table 4-3 Pin FMA for Device Pins Open-Circuited
Pin NamePin No.Description of Potential Failure Effect(s)Failure Effect Class
OUTA1Open-drain output requires pull-up resistor to pull-up voltage for correct functionality.B
GND2No damage to device, but device is unpowered. Device is nonfunctional.B
INA+3No damage to device, undervoltage sense input pin nonfunctional, OUTA indicates undervoltage fault.B
INB-4No damage to device, overvoltage sense input pin nonfunctional, OUTB indicates no overvoltage fault.B
VDD5No damage to device, but device is unpowered. Device is nonfunctional.B
OUTB6Open-drain output requires pull-up resistor to pull-up voltage for correct functionality.B
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
OUTA1GND No damage to device, undervoltage output pin nonfunctional, OUTA indicates an undervoltage fault, increase in system current due to current through OUTA pull-up resistorB
GND2INA+No damage to device, undervoltage sense input pin nonfunctional, OUTA indicates undervoltage fault, increase in system current due to current through OUTA pull-up resistorB
INA+3INB-No damage to device, device monitors a single input for both undervoltage and overvoltageC
INB-4VDDNo damage to device, overvoltage sense input pin nonfunctional, OUTB indicates overvoltage fault.B
VDD5OUTBOpen-drain output requires pull-up resistor to pull-up voltage for correct functionality. OUTB indicates no overvoltage fault. OUTB shorted to VDD can violate the output current ABS MAX rating and cause damage if INB- is below V_IT-A
OUTB6OUTANo damage to device, device outputs a single signal for both undervoltage and overvoltage window monitoring. OUTA and OUTB indicate a fault if either undervoltage or overvoltage condition occursC
Table 4-5 Pin FMA for Device Pins Short-Circuited to VDD
Pin NamePin No.Description of Potential Failure Effect(s)Failure Effect Class
OUTA1 Open-drain output requires pull-up resistor to pull-up voltage for correct functionality. OUTA indicates no undervoltage fault. OUTA shorted to VDD can violate the output current ABS MAX rating and cause damage if INA+ is below V_IT-A
GND2No damage to device, but device is unpowered. Device is nonfunctional.B
INA+3No damage to device, undervoltage sense input pin nonfunctional, OUTA indicates no undervoltage fault.B
INB-4No damage to device, overvoltage sense input pin nonfunctional, OUTB indicates overvoltage fault.B
VDD5Normal operation.D
OUTB6Open-drain output requires pull-up resistor to pull-up voltage for correct functionality. OUTB indicates no overvoltage fault. OUTB shorted to VDD can violate the output current ABS MAX rating and cause damage if INB- is below V_IT-A