Texas Instruments LM74700DDFEVM User Manual
Texas Instruments LM74700DDFEVM User Manual

Texas Instruments LM74700DDFEVM User Manual

Evaluation module for lm74700-q1

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User's Guide
LM74700DDFEVM: Evaluation Module for LM74700-Q1
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.
1
Introduction.............................................................................................................................................................................2
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Setup........................................................................................................................................................................................2
Description..................................................................................................................................................2
2.2 Board Setup.......................................................................................................................................................................
2.3 Schematic..........................................................................................................................................................................
3
Operation.................................................................................................................................................................................5
Protection................................................................................................................................................5
3.2 ORing Application..............................................................................................................................................................
Drawings....................................................................................................................................................................7
Materials...................................................................................................................................................................9
Figure 2-1. LM74700DDFEVM Typical Application Circuit..........................................................................................................
Figure 2-2. LM74700DDFEVM....................................................................................................................................................
Figure 2-3. LM74700DDFEVM Schematic..................................................................................................................................
Figure 3-1. Reverse Polarity 12 V to -12 V.................................................................................................................................
Figure 3-3. ORing Application - Higher Supply Switchover........................................................................................................
Figure 3-4. ORing Application 12-V - Lower Supply
Figure 4-1. LM74700DDFEVM Top Side Placement...................................................................................................................
Figure 4-3. LM74700DDFEVM Top Layer Routing......................................................................................................................
Figure 4-4. LM74700DDFEVM Bottom Layer Routing................................................................................................................
Materials............................................................................................................................................................9
Trademarks
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SNOU177 - DECEMBER 2020
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ABSTRACT

Table of Contents

Guidelines....................................................................................................7
List of Figures
V)...............................................................................................................................5
Test............................................................................................................6
Placement..............................................................................................................7
List of Tables
Copyright © 2020 Texas Instruments Incorporated
LM74700DDFEVM: Evaluation Module for LM74700-Q1
Table of Contents
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Summary of Contents for Texas Instruments LM74700DDFEVM

  • Page 1: Table Of Contents

    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.
  • Page 2: Introduction

    2 Setup This section describes the jumpers and connectors on the EVM, and how to properly connect, setup, and use the LM74700DDFEVM. Ensure the power supply is turned off while making connections on the board. 2.1 I/O Connector Description J1: Power input connector to the positive rail of the input power supply...
  • Page 3: Board Setup

    Setup 2.2 Board Setup Before applying power to the LM74700DDFEVM, verify all external connections. Turn off external power supplies and connect them with the proper polarity to the VIN and GND1 connectors. An electronic or resistive load must be connected at the output VOUT and GND2 connectors. The tests outlined in this document are conducted with 3-A constant current as the load and 12 V at the input.
  • Page 4: Schematic

    Setup www.ti.com 2.3 Schematic Figure 2-3 illustrates the EVM schematic. Figure 2-3. LM74700DDFEVM Schematic LM74700DDFEVM: Evaluation Module for LM74700-Q1 SNOU177 – DECEMBER 2020 Submit Document Feedback Copyright © 2020 Texas Instruments Incorporated...
  • Page 5: Operation

    Operation 3 Operation 3.1 Reverse Polarity Protection A dynamic voltage pulse from 12 V to –12 V is applied at the input of the LM74700DDFEVM. Figure 3-1 shows the input voltage (CH1) drops down to –12 V and the output voltage (CH2) does not go negative. Therefore, the load is protected from dynamic reverse pulses at the input.
  • Page 6: Oring Application

    Next, the 12-V source at EVM2 is turned off for a period of time and turned on again, the output (CH2) does not change. Figure 3-4 captures this test. Figure 3-4. ORing Application 12-V – Lower Supply Test LM74700DDFEVM: Evaluation Module for LM74700-Q1 SNOU177 – DECEMBER 2020 Submit Document Feedback Copyright © 2020 Texas Instruments Incorporated...
  • Page 7: Evm Board Assembly Drawings And Layout Guidelines

    4.1 PCB Drawings Figure 4-1 through Figure 4-4 show component placement and layout of this EVM. Figure 4-1. LM74700DDFEVM Top Side Placement Figure 4-2. LM74700DDFEVM Bottom Side Placement SNOU177 – DECEMBER 2020 LM74700DDFEVM: Evaluation Module for LM74700-Q1 Submit Document Feedback...
  • Page 8: Figure 4-3. Lm74700Ddfevm Top Layer Routing

    EVM Board Assembly Drawings and Layout Guidelines www.ti.com Figure 4-3. LM74700DDFEVM Top Layer Routing Figure 4-4. LM74700DDFEVM Bottom Layer Routing LM74700DDFEVM: Evaluation Module for LM74700-Q1 SNOU177 – DECEMBER 2020 Submit Document Feedback Copyright © 2020 Texas Instruments Incorporated...
  • Page 9: Bill Of Materials

    FID1, FID2, FID3, mount. FID4, FID5, FID6 Not Fitted MOSFET, N-CH, 60 V, 17.9 A, AEC- DMT6005LPS-13 Diodes Inc. 8-PowerTDFN 60 V Q101, 8-PowerTDFN SNOU177 – DECEMBER 2020 LM74700DDFEVM: Evaluation Module for LM74700-Q1 Submit Document Feedback Copyright © 2020 Texas Instruments Incorporated...
  • Page 10 STANDARD TERMS FOR EVALUATION MODULES Delivery: TI delivers TI evaluation boards, kits, or modules, including any accompanying demonstration software, components, and/or documentation which may be provided together or separately (collectively, an “EVM” or “EVMs”) to the User (“User”) in accordance with the terms set forth herein.
  • Page 11 www.ti.com Regulatory Notices: 3.1 United States 3.1.1 Notice applicable to EVMs not FCC-Approved: FCC NOTICE: This kit is designed to allow product developers to evaluate electronic components, circuitry, or software associated with the kit to determine whether to incorporate such items in a finished product and software developers to write software applications for use with the end product.
  • Page 12 www.ti.com Concernant les EVMs avec antennes détachables Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne d'un type et d'un gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada. Dans le but de réduire les risques de brouillage radioélectrique à...
  • Page 13 www.ti.com EVM Use Restrictions and Warnings: 4.1 EVMS ARE NOT FOR USE IN FUNCTIONAL SAFETY AND/OR SAFETY CRITICAL EVALUATIONS, INCLUDING BUT NOT LIMITED TO EVALUATIONS OF LIFE SUPPORT APPLICATIONS. 4.2 User must read and apply the user guide and other available documentation provided by TI regarding the EVM prior to handling or using the EVM, including without limitation any warning or restriction notices.
  • Page 14 Notwithstanding the foregoing, any judgment may be enforced in any United States or foreign court, and TI may seek injunctive relief in any United States or foreign court. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2019, Texas Instruments Incorporated...
  • Page 15 TI products. TI’s provision of these resources does not expand or otherwise alter TI’s applicable warranties or warranty disclaimers for TI products. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2020, Texas Instruments Incorporated...

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Lm74700- q1

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