SFFS431 July   2022 ISO6762 , ISO6762-Q1

 

  1.   Trademarks
  2. 1Overview
  3. 2Functional Safety Failure In Time (FIT) Rates
    1. 2.1 16-SOIC (wide-body SOIC) Package
  4. 3Failure Mode Distribution (FMD)
  5. 4Pin Failure Mode Analysis (Pin FMA)
    1. 4.1 16-QSOP (SSOP) and 16-DW (wide-body SOIC) Package

16-QSOP (SSOP) and 16-DW (wide-body SOIC) Package

Figure 4-1 shows the ISO6762/ISO6762-Q1 pin diagram for 16-DW packages. For a detailed description of the device pins please refer to the Pin Configuration and Functions section in the ISO6762/ISO6762-Q1 data sheet.

GUID-82AA8BC5-3DA5-44C1-BDA7-18D013CE0FE1-low.gifFigure 4-1 Pin Diagram 16-DW 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
VCC11No power to the device on side-1. OUTA-OUTD go to default state, while OUTE/OUTF undetermined state. Observe that the absolute maximum ratings for all pins of the device are met; otherwise device damage may be plausible.A
INA2Input signal shorted to ground, so output (OUTA) stuck to low. Communication from INA to OUTA corrupted.B
INB3Input signal shorted to ground, so output (OUTB) stuck to low. Communication from INB to OUTB corrupted.B
INC4Input signal shorted to ground, so output (OUTC) stuck to low. Communication from INC to OUTC corrupted.B
IND5Input signal shorted to ground, so output (OUTD) stuck to low. Communication from IND to OUTD corrupted.B
OUTE6OUTE stuck low. Data communication from INE to OUTE lost. Device damage possible if INE is driven high for extended period of time.A
OUTF7OUTF stuck low. Data communication from INF to OUTF lost. Device damage possible if INF is driven high for extended period of time.A
GND18Device continues to function as expected. Normal operation.D
GND29Device continues to function as expected. Normal operation.D
INF10Input signal shorted to ground, so output (OUTF) stuck to low. Communication from INF to OUTF corrupted.B
INE11Input signal shorted to ground, so output (OUTE) stuck to low. Communication from INE to OUTE corrupted.B
OUTD12OUTD stuck low. Data communication from IND to OUTD lost. Device damage possible if IND is driven high for extended period of time.A
OUTC13OUTC stuck low. Data communication from INC to OUTC lost. Device damage possible if INC is driven high for extended period of time.A
OUTB14OUTB stuck low. Data communication from INB to OUTB lost. Device damage possible if INB is driven high for extended period of time.A
OUTA15OUTA stuck low. Data communication from INA to OUTA lost. Device damage possible if INA is driven high for extended period of time.A
VCC216No power to the device on side-2. OUTA to OUTD pins state undetermined. OUTE/OUTF in default state.B
Table 4-3 Pin FMA for Device Pins Open-Circuited
Pin NamePin No.Description of Potential Failure Effect(s)Failure Effect Class
VCC11Operation undetermined. Either device is unpowered and OUTA to OUTD=default logic state or through internal ESD diode on any IN pin, device can power up if any IN is driven to logic high. If IN has current sourcing capability to provide regular operating current of device, ESD diode conducts that current and device damage plausible.A
INA2No communication to INA channel possible. OUTA stuck to default state (High for ISO6762-Q1 and Low for ISO6762F-Q1).B
INB3No communication to INB channel possible. OUTB stuck to default state (High for ISO6762-Q1 and Low for ISO6762F-Q1).B
INC4No communication to INC channel possible. OUTC stuck to default state (High for ISO6762-Q1 and Low for ISO6762F-Q1).B
IND5No communication to IND channel possible. OUTD stuck to default state (High for ISO6761-Q1 and Low for ISO6761F-Q1).B
OUTE6State of OUTE undetermined. Data communication from INE to OUTE lost.B
OUTF7State of OUTF undetermined. Data communication from INF to OUTF lost.B
GND18Device unpowered on side1. OUTx on side2 go to default state. OUTE/OUTF state undetermined.B
GND29Device unpowered on side2. OUTx on side2 state undetermined. OUTE/OUTF goes to default state.B
INF10No communication to INF channel possible. OUTF stuck to default state (High for ISO6762-Q1 and Low for ISO6762F-Q1).B
INE11No communication to INEF channel possible. OUTE stuck to default state (High for ISO6762-Q1 and Low for ISO6762F-Q1).B
OUTD12State of OUTD undetermined. Data communication from IND to OUTD lost.B
OUTC13State of OUTC undetermined. Data communication from INC to OUTC lost.B
OUTB14State of OUTB undetermined. Data communication from INB to OUTB lost.B
OUTA15State of OUTA undetermined. Data communication from INA to OUTA lost.B
VCC216Device unpowered on side-2 and state of OUTx on side-2 undetermined. OUTE/OUTF go to default state.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
VCC11INAInput signal shorted to supply, so output (OUTA) stuck to high. Communication from INA to OUTA corrupted.B
INA2INBCommunication corrupted for either INA or INB channel.B
INB3INCCommunication corrupted for either INC or INB channel.B
INC4INDCommunication corrupted for either INC or IND channel.B
IND5OUTECommunication corrupted for either or both channels. With opposite logic state on both channels, high current can flow between supply and ground and cause possible device damage.A
OUTE6OUTFCommunication corrupted for either or both channels. With opposite logic state on both channels, high current can flow between supply and ground and cause possible device damage.A
OUTF7GND1OUTF stuck low. Data communication from INF to OUTF lost. Device damage possible if INF is driven high for extended period of time.A
GND18OUTFAlready considered in above row.B
GND29INFInput signal shorted to ground, so output (OUTF) stuck low. Communication from INF to OUTF corrupted.B
INF10INECommunication corrupted for either INE or INF channel.B
INE11OUTDCommunication corrupted for either or both channels. With opposite logic state on both channels, high current can flow between supply and ground and cause possible device damage.A
OUTD12OUTCCommunication corrupted for either OUTD or OUTC channel. Device damage possible if INC and IND try to drive opposite logic state for extended duration creating a short between supply and ground on side-2.A
OUTC13OUTBCommunication corrupted for either OUTC or OUTB channel. Device damage possible if INC and INB try to drive opposite logic state for extended duration creating a short between supply and ground on side-2.A
OUTB14OUTACommunication corrupted for either OUTA or OUTB channel. Device damage possible if INA and INB try to drive opposite logic state for extended duration creating a short between supply and ground on side-2.A
OUTA15VCC2OUTA stuck high. Data communication from INA to OUTA lost. Device damage possible if INA is driven low for extended period of time.A
VCC216OUTAAlready considered in above row.A
Table 4-5 Pin FMA for Device Pins Short-Circuited to supply
Pin NamePin No.Description of Potential Failure Effect(s)Failure Effect Class
VCC11No effect. Normal operation.D
INA2INA pin stuck high. Communication corrupted. OUTA state high.B
INB3INB pin stuck high. Communication corrupted. OUTB state high.B
INC4INC pin stuck high. Communication corrupted. OUTC state high.B
IND5IND pin stuck high. Communication corrupted. OUTD state high.B
OUTE6OUTE stuck high. Communication disrupted. If INE is low for extended duration, OUTE being stuck high creates a short and can damage the device.A
OUTF7OUTF stuck high. Communication disrupted. If INF is low for extended duration, OUTF being stuck high creates a short and can damage the device.A
GND18Device unpowered on side1. OUTx on side-2 go to default state. OUTE/OUTF state undetermined.B
GND29Device unpowered on side2. OUTx on side-2 state undetermined. OUTE/OUTF go to default state.B
INF10INF pin stuck high. Communication corrupted. OUTF state high.B
INE11INE pin stuck high. Communication corrupted. OUTE state high.B
OUTD12OUTD stuck high. Communication disrupted. If IND is low for extended duration, OUTD being stuck high creates a short and can damage the device.A
OUTC13OUTC stuck high. Communication disrupted. If INC is low for extended duration, OUTC being stuck high creates a short and can damage the device.A
OUTB14OUTB stuck high. Communication disrupted. If INB is low for extended duration, OUTB being stuck high creates a short and can damage the device.A
OUTA15OUTA stuck high. Communication disrupted. If INA is low for extended duration, OUTA being stuck high creates a short and can damage the device.A
VCC216Device continues to function as expected. Normal operation.D