Introduction; U1 Component Selection; Pin Configuration And Functions; Figure 1-1. Dwn Package, 36-Pin Ssop - Texas Instruments UCC14240-Q1 User Manual

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1 Introduction

The UCC14240-Q1 is a high efficiency, low-emissions, 3 kV
up to 2-W of power. Since the UCC14240-Q1 provides isolated power in an integrated package, this allows
systems to reduce cost and size by removing the need for separate isolated power supplies. The UCC14240-Q1
delivers class-leading efficiency in power conversion from the primary to the secondary side while removing
the need for bulky 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.

1.1 U1 Component Selection

The UCC14240-Q1 is the default IC used in the UCC14240EVM-052 but any of the alternate versions listed
in Table 1-1 can be used for evaluation. Each of the component versions listed in
compatible, functionally equivalent, drop in replacements with respect to one another.
General Part Number
UCC14240-Q1
UCC14241-Q1
If U1 replacement is required, then TI recommends to always use best practice soldering techniques.
Techniques can include taking appropriate ESD precautions and having qualified personnel, skilled at surface
mount soldering and board level rework, removing and installing U1. Visually verify the desired UCC1424x-Q1
component version is properly installed in the EVM. If rework on U1 has previously been performed, then visually
verify correct orientation of U1 according to
oriented at the top left according to

1.2 Pin Configuration and Functions

SLUUCJ2B – JULY 2021 – REVISED MARCH 2023
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Table 1-1. UCC1424x-Q1 Version Differences

Orderable Part Number
UCC14240QDWNQ1
UCC14241QDWNQ1
Figure 2-1. The pin 1 identifying dot on top of the IC package is
Figure 2-1.
GNDP 1
GNDP 2
PG
3
ENA
4
GNDP
5
VIN 6
VIN
7
GNDP
8
GNDP
9
GNDP
10
GNDP
11
GNDP
12
GNDP
13
GNDP
14
GNDP
15
GNDP
16
GNDP
17
GNDP
18
Figure 1-1. DWN Package, 36-Pin SSOP (Top View)
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Isolated DC-DC Converter capable of delivering
RMS
Isolation/Surge/Working Voltage
3 kVRMS/6.5 kVPK/850 VRMS
5 kVRMS/10 kVPK/1 kVRMS
36 VEE
35 VEEA
34 FBVDD
33 FBVEE
32 RLIM
31 VEE
30 VEE
29 VDD
28 VDD
27 VEE
26 VEE
25 VEE
24 VEE
23 VEE
22 VEE
21 VEE
20 VEE
19 VEE
Using the UCC14240EVM-052 for Biasing Traction Inverter Gate Driver ICs
Requiring Single, Positive or Dual, Positive/Negative Bias Power
Introduction
Table 1-1 are pin-to-pin
3