SFFS173 July   2022 TLC6C5748-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)

Pin Failure Mode Analysis (Pin FMA)

This section provides a Failure Mode Analysis (FMA) for the pins of the TLC6C5748-Q1. The failure modes covered in this document include the typical pin-by-pin failure scenarios:

Table 4-2 through Table 4-5 also indicate how these pin conditions can affect the device as per the failure effects classification in Table 4-1.

Table 4-1 TI Classification of Failure Effects
ClassFailure Effects
APotential device damage that affects functionality
BNo device damage, but loss of functionality
CNo device damage, but performance degradation
DNo device damage, no impact to functionality or performance

Figure 4-1 shows the TLC6C5748-Q1 pin diagram. For a detailed description of the device pins please refer to the Pin Configuration and Functions section in the TLC6C5748-Q1 data sheet.

GUID-91ECDA2C-0F86-4FC6-AB3C-00A24C3965D7-low.gif Figure 4-1 Pin Diagram

Following are the assumptions of use and the device configuration assumed for the pin FMA in this section:

  • Assume the device is running in the typical application. Please refer to the Simplified Schematics section in the TLC6C5748-Q1 data sheet.
Table 4-2 Pin FMA for Device Pins Short-Circuited to Ground
Pin Name Pin No. Description of Potential Failure Effect(s) Failure Effect Class
SIN 1 The host controller can not control the device. B
SCLK 2 The host controller can not control the device. B
LAT 3 The host controller can not control the device. B
OUTR0-7/OUTG0-7/OUTB0-7 4-27 Device report LOD B
SOUT 28 The host controller can not read the device. B
GND 29 No effect D
OUTR8-15/OUTG8-15/OUTB8-15 30-53 Device report LOD B
VCC 54 Device power off B
GSCLK 55 Device can not output grayscale B
GND 56 No effect D
Table 4-3 Pin FMA for Device Pins Open-Circuited
Pin NamePin No.Description of Potential Failure Effect(s)Failure Effect Class
SIN1The host controller can not control the device.B
SCLK2The host controller can not control the device.B
LAT3The host controller can not control the device.B
OUTR0-7/OUTG0-7/OUTB0-7 4-27 Device report LOD B
SOUT 28 The host controller can not read the device. B
GND 29 Device not functional B
OUTR8-15/OUTG8-15/OUTB8-15 30-53 Device report LOD B
VCC 54 Device can not power up B
GSCLK 55 Device can not output grayscale B
GND 56 Device not functional 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
SIN1SCLKThe host controller can not control the device.B
SCLK2LATThe host controller can not control the device.B
LAT3OUTB4The host controller can not control the device.B
OUTB4 4 OUTR4 Intended functionality D
OUTR4 5 OUTG4 Intended functionality D
OUTG4 6 OUTB0 Intended functionality D
OUTB0 7 OUTR0 Intended functionality D
OUTR0 8 OUTG0 Intended functionality D
OUTG0 9 OUTB5 Intended functionality D
OUTB5 10 OUTR5 Intended functionality D
OUTR5 11 OUTG5 Intended functionality D
OUTG5 12 OUTB1 Intended functionality D
OUTB1 13 OUTR1 Intended functionality D
OUTR1 14 OUTG1 Intended functionality D
OUTG1 15 OUTB2 Intended functionality D
OUTB2 16 OUTR2 Intended functionality D
OUTR2 17 OUTG2 Intended functionality D
OUTG2 18 OUTB6 Intended functionality D
OUTB6 19 OUTR6 Intended functionality D
OUTR6 20 OUTG6 Intended functionality D
OUTG6 21 OUTB3 Intended functionality D
OUTB3 22 OUTR3 Intended functionality D
OUTR3 23 OUTG3 Intended functionality D
OUTG3 24 OUTB7 Intended functionality D
OUTB7 25 OUTR7 Intended functionality D
OUTR7 26 OUTG7 Intended functionality D
OUTG7 27 SOUT The host controller can not control the device. B
OUTG11 30 OUTR11 Intended functionality D
OUTR11 31 OUTB11 Intended functionality D
OUTB11 32 OUTG15 Intended functionality D
OUTG15 33 OUTR15 Intended functionality D
OUTR15 34 OUTB15 Intended functionality D
OUTB15 35 OUTG10 Intended functionality D
OUTG10 36 OUTR10 Intended functionality D
OUTR10 37 OUTB10 Intended functionality D
OUTB10 38 OUTG14 Intended functionality D
OUTG14 39 OUTR14 Intended functionality D
OUTR14 40 OUTB14 Intended functionality D
OUTB14 41 OUTG13 Intended functionality D
OUTG13 42 OUTR13 Intended functionality D
OUTR13 43 OUTB13 Intended functionality D
OUTB13 44 OUTG9 Intended functionality D
OUTG9 45 OUTR9 Intended functionality D
OUTR9 46 OUTB9 Intended functionality D
OUTB9 47 OUTG12 Intended functionality D
OUTG12 48 OUTR12 Intended functionality D
OUTR12 49 OUTB12 Intended functionality D
OUTB12 50 OUTG8 Intended functionality D
OUTG8 51 OUTR8 Intended functionality D
OUTR8 52 OUTB8 Intended functionality D
Table 4-5 Pin FMA for Device Pins Short-Circuited to VCC
Pin Name Pin No. Description of Potential Failure Effect(s) Failure Effect Class
SIN 1 The host controller can not control the device. B
SCLK 2 The host controller can not control the device. B
LAT 3 The host controller can not control the device. B
OUTR0-7/OUTG0-7/OUTB0-7 4-27 Device report LSD B
SOUT 28 The host controller can not control the device. B
GND 29 Device can not power up B
OUTR8-15/OUTG8-15/OUTB8-15 30-53 Device report LSD B
VCC 54 No effect D
GSCLK 55 Device can not output grayscale B
GND 56 Device can not power up B