SFFS525A September   2022  – November 2022 UCC28C50 , UCC28C51 , UCC28C52 , UCC28C53 , UCC28C54 , UCC28C55 , UCC28C56L , UCC28C57H , UCC28C57L , UCC28C58 , UCC28C59

 

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

1 Overview

This document contains information for - the UCC28C50, UCC28C51, UCC28C52, UCC28C53, UCC28C54, UCC28C55, UCC28C56H, UCC28C56L, UCC28C57H, UCC28C57L, UCC28C58, and UCC28C59, UCC38C50, UCC38C51, UCC38C52, UCC38C53, UCC38C54, UCC38C55 SOIC (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 UCCx8C51, UCCx8C54, and UCCx8C55, UCC28C57H, UCC28C57L, and UCC28C59

Figure 1-1 Functional Block Diagram

UCCx8C5x 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
UCC28C52 UCC28C53 UCC28C50 100% –40°C to 125°C
UCC28C54 UCC28C55 UCC28C51 50%
UCC38C52 UCC38C53 UCC38C50 100% 0°C to 85°C
UCC38C54 UCC38C55 UCC38C51 50%
UVLOMAXIMUM DUTY CYCLETEMPERATURE (TA)
TURN ON AT 18.8 V
TURN OFF AT 15.5V
Suitable for HV applications using GEN-I SiC MOSFET

TURN ON AT 18.8 V TURN OFF AT 14.5V
Suitable for HV applications using GEN-II SiC MOSFET

TURN ON AT 16 V TURN OFF AT 12.5V
Suitable for HV applications using GEN-III SiC MOSFET

UCC28C56HUCC28C56LUCC28C58100%–40°C to 125°C
UCC28C57HUCC28C57LUCC28C5950%