SLUUCC9A September   2020  – September 2022 UCC28C40-Q1 , UCC28C41-Q1 , UCC28C42-Q1 , UCC28C43-Q1 , UCC28C44-Q1 , UCC28C45-Q1

 

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

1 Overview

This document contains information for UCC28C4x-Q1(UCC28C40-Q1, UCC28C41-Q1, UCC28C42-Q1, UCC28C43-Q1, UCC28C44-Q1, and UCC28C45-Q1) (SOIC (8) package) 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 UCC28C41-Q1, UCC28C44-Q1, and UCC28C45-Q1

Figure 1-1 Functional Block Diagram

UCC28C4x-Q1 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
UVLO MAXIMUM DUTY CYCLE TEMPERATURE (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
UCC28C42QDRQ1 UCC28C43QDRQ1 UCC28C40QDRQ1 100% –40°C to 125°C
UCC28C44QDRQ1 UCC28C45QDRQ1 UCC28C41QDRQ1 50%