Texas Instruments LM74700- Q1, Руководство пользователя

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User’s Guide
LM74700DDFEVM: Evaluation Module for LM74700-Q1
ABSTRACT
This user’s guide describes the evaluation module (EVM) for Texas Instruments ideal diode controller, LM74700-
Q1. This document provides configuration information and test setup details for evaluating LM74700-Q1 device
in 8-pin DDF package. An EVM schematic, board layout images, and bill of materials (BOM) are included.
Table of Contents
1 Introduction ............................................................................................................................................................................. 2
2 Setup ........................................................................................................................................................................................ 2
2.1 I/O Connector Description.................................................................................................................................................. 2
2.2 Board Setup....................................................................................................................................................................... 3
2.3 Schematic.......................................................................................................................................................................... 4
3 Operation ................................................................................................................................................................................. 5
3.1 Reverse Polarity Protection................................................................................................................................................ 5
3.2 ORing Application.............................................................................................................................................................. 6
4 EVM Board Assembly Drawings and Layout Guidelines .................................................................................................... 7
4.1 PCB Drawings.................................................................................................................................................................... 7
4.2 Bill of Materials................................................................................................................................................................... 9
List of Figures
Figure 2-1. LM74700DDFEVM Typical Application Circuit.......................................................................................................... 2
Figure 2-2. LM74700DDFEVM.................................................................................................................................................... 3
Figure 2-3. LM74700DDFEVM Schematic.................................................................................................................................. 4
Figure 3-1. Reverse Polarity 12 V to –12 V................................................................................................................................. 5
Figure 3-2. Startup Reverse Polarity (–12 V)............................................................................................................................... 5
Figure 3-3. ORing Application – Higher Supply Switchover........................................................................................................ 6
Figure 3-4. ORing Application 12-V – Lower Supply Test............................................................................................................ 6
Figure 4-1. LM74700DDFEVM Top Side Placement................................................................................................................... 7
Figure 4-2. LM74700DDFEVM Bottom Side Placement.............................................................................................................. 7
Figure 4-3. LM74700DDFEVM Top Layer Routing...................................................................................................................... 8
Figure 4-4. LM74700DDFEVM Bottom Layer Routing................................................................................................................ 8
List of Tables
Table 4-1. Bill of Materials............................................................................................................................................................ 9
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SNOU177 – DECEMBER 2020
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