SFFS043 September   2022 UCC28C40 , UCC28C41 , UCC28C42 , UCC28C43 , UCC28C44 , UCC28C45 , UCC38C40 , UCC38C41 , UCC38C42 , UCC38C43 , UCC38C44 , UCC38C45

 

  1. 1Overview
  2. 2Functional Safety Failure In Time (FIT) Rates
    1. 2.1 SOIC (8) Package
    2. 2.2 PDIP (8) Package
    3. 2.3 VSSOP (8) Package
  3. 3Failure Mode Distribution (FMD)
  4. 4Pin Failure Mode Analysis (Pin FMA)
    1. 4.1 SOIC (8), PDIP (8), and VSSOP (8) Packages
  5. 5Revision History

1 Overview

This document contains information for the UCC28C40, UCC28C41, UCC28C42, UCC28C43, UCC28C44, and UCC28C45, UCC38C40, UCC38C41, UCC38C42, UCC38C43, UCC38C44, and UCC38C45 SOIC (8), PDIP (8), and VSSOP (8) packages, to aid in a functional safety system design. Information provided are:

  • Functional Safety Failure In Time (FIT) rates of the semiconductor component estimated by the application of

    industry reliability standards

  • Component failure modes and their distribution (FMD) based on the primary function of the device
  • Pin failure mode analysis (Pin FMA)

Figure 1-1shows the device functional block diagram for reference.

Note:

Toggle flip-flop used only in UCCx8C41-Q1, UCCx8C44-Q1, and UCCx8C45-Q1

Figure 1-1 Functional Block Diagram

UCCx8C4x was developed using a quality-managed development process, but was not developed in accordance with the IEC 61508 or ISO 26262 standards.

Table 1-1 Device Comparison Table
UVLOMAXIMUM DUTY CYCLETEMPERATURE (TA)
TURN ON AT 14.5 V
TURN OFF AT 9 V
SUITABLE FOR OFF-LINE APPLICATIONS		TURN ON AT 8.4 V
TURN OFF AT 7.6 V
SUITABLE FOR DC/DC APPLICATIONS		TURN ON AT 7 V
TURN OFF AT 6.6 V
SUITABLE FOR BATTERY APPLICATIONS
UCC28C42UCC28C43UCC28C40100%–40°C to 105°C
UCC38C42 UCC38C43 UCC38C40 0°C to 70°C
UCC28C44 UCC28C45 UCC28C41 50% –40°C to 105°C
UCC38C44UCC38C45UCC38C41 0°C to 70°C