Evaluation Module Overview
1 Evaluation Module Overview
1.1 Introduction
This user's guide provides a description as well as directions for use of the UCC33421EVM-092 to evaluate
the UCC33421-Q1 high frequency integrated transformer DC-DC converter, low-emissions, 5kV
isolation module from Texas Instruments. UCC33421-Q1 comes in a minimum footprint DHA-16 package which
provides high power density, 1.5W nominal power. The UCC33421-Q1 delivers class-leading efficiency in power
conversion from the primary to the secondary side while removing the need for external transformers or power
modules commonly used in existing designs. This integration allows for minimal printed circuit board (PCB) area
as well as decreased height profile
1.2 Kit Contents
Designator
PCB1
1.3 Device Information
1.3.1 U1 Component Selection
The UCC33421-Q1 is the default IC used in the UCC33421EVM-092 but any of the alternate versions listed
in Table 1-1 can be used for evaluation. Each of the component versions listed in Table 1-1 are pin-to-pin and
BOM-to-BOM compatible
General Part Number
UCC33421-Q1
UCC33421QDHARQ1
UCC33421
UCC33421DHAR
If IC replacement is required, TI recommends to always use best practice soldering techniques which can
include taking appropriate ESD precautions and having qualified personnel, skilled at surface mount soldering
and board level rework.
1.3.2 UCC33421-Q1 Pin Definition
2
Evaluation Module for Automotive and Industrial Applications
Table 1-1. UCC33421EVM-092 Kit Contents
Description
UCC33421EVM-092 Circuit Board
Table 1-2. UCC334x1-Q1 Devices
Orderable Part Number
1
EN/FLT
VINP
2
3
VINP
GNDP
4
GNDP
5
GNDP
6
GNDP
7
GNDP
8
Figure 1-1. UCC33421-Q1 Package Top View
Copyright © 2024 Texas Instruments Incorporated
Input Voltage/Output Voltage/Isolation
4.5V-5.5V/5.0V/5kV
RMS
4.5V-5.5V/5.0V/5kV
RMS
16
GNDS
15
GNDS
14
GNDS
13
GNDS
12
GNDS
11
VCC
10
VCC
9
SEL
SLUUD39A – MAY 2024 – REVISED NOVEMBER 2024
www.ti.com
reinforced
RMS
Quantity
1
Submit Document Feedback
Need help?
Do you have a question about the UCC33421EVM-092 and is the answer not in the manual?
Questions and answers