Texas Instruments TPS7A39EVM-865 User Manual

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This user's guide describes the operational use of the TPS7A39EVM-865 evaluation module (EVM) as a

reference design for engineering demonstration and evaluation of the TPS7A3901DSC, low-dropout linear

regulator (LDO). Included in this user's guide are setup and operating instructions, layout guidelines, a

printed circuit board (PCB) layout, a schematic diagram, and a bill of materials (BOM).

Throughout this document, the terms demonstration kit, evaluation board, and evaluation module are

synonymous with the TPS7A39EVM-865.

The following related documents are available through the Texas Instruments web site at www.ti.com.

SBVU034 – July 2017

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Summary of Contents for Texas Instruments TPS7A39EVM-865

Page 1 SBVU034 – July 2017 TPS7A39EVM-865 Evaluation Module This user’s guide describes the operational use of the TPS7A39EVM-865 evaluation module (EVM) as a reference design for engineering demonstration and evaluation of the TPS7A3901DSC, low-dropout linear regulator (LDO). Included in this user’s guide are setup and operating instructions, layout guidelines, a printed circuit board (PCB) layout, a schematic diagram, and a bill of materials (BOM).
Page 2: Table Of Contents
Top Layer Routing ....................... Bottom Layer Routing ..................... TPS7A39EVM-865 Schematic List of Tables ....................TPS7A39EVM-865 BOM Trademarks All trademarks are the property of their respective owners. TPS7A39EVM-865 Evaluation Module SBVU034 – July 2017 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated...
Page 3: Introduction
Introduction The Texas Instruments' TPS7A39EVM-865 EVM helps design engineers evaluate the operation and performance of the TPS7A39 for possible use in their own circuit application. This particular EVM configuration contains a single TPS7A39 device which integrates a positive and a negative monolithic bipolar LDO to simplify signal chain dual-rail power-supply design.
Page 4: Evm Setup
Positive input voltage power-supply connector. Keep the positive input lead as short as possible to minimize input inductance. 2.1.9 J9 – Positive LDO Resistor Divider TPS7A39EVM-865 is prepopulated with four resistor dividers for the positive output voltage. Place a short to select the desired output voltage from the silkscreen. 2.1.10 J10 – INN Negative input voltage power-supply connector.
Page 5: Tp12 - Buf
Output enable. To enable the outputs, connect a jumper to short INP to EN. 2.1.16 J16 – Negative LDO Resistor Divider TPS7A39EVM-865 is prepopulated with five options for the negative output voltage. Place a short to select the desired output voltage from the silkscreen. 2.1.17 TP1 –...
Page 6: Soldering Guidelines
2. Enable the output by jumping J15, the EN pin, to VIN. 3. Vary the respective load and input voltage, as necessary, for test purposes. TPS7A39EVM-865 Evaluation Module SBVU034 – July 2017 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated...
Page 7: Pcb Layout
Figure 1 Figure 3 illustrate the PCB layout for this EVM. Figure 1. Assembly Layer Figure 2. Top Layer Routing Figure 3. Bottom Layer Routing SBVU034 – July 2017 TPS7A39EVM-865 Evaluation Module Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated...
Page 8: Schematic
Schematic www.ti.com Schematic Figure 4 is the schematic for this EVM. Figure 4. TPS7A39EVM-865 Schematic TPS7A39EVM-865 Evaluation Module SBVU034 – July 2017 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated...
Page 9: Bill Of Materials
These assemblies must comply with workmanship standards IPC-A-610 Class 2. Unless otherwise noted in the Alternate Part Number or Alternate Manufacturer columns, all parts may be substituted with equivalents. SBVU034 – July 2017 TPS7A39EVM-865 Evaluation Module Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated...
Page 10 Fiducial mark. There is nothing to buy or mount. Fiducial J1, J3, J4, J7 Connector, SMA Jack, Vertical, Gold, SMD 142-0711-201 Emerson Network Power TPS7A39EVM-865 Evaluation Module SBVU034 – July 2017 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated...
Page 11 SBVU034 – July 2017 TPS7A39EVM-865 Evaluation Module Submit Documentation Feedback...
Page 12 IMPORTANT NOTICE FOR TI DESIGN INFORMATION AND RESOURCES Texas Instruments Incorporated (‘TI”) technical, application or other design advice, services or information, including, but not limited to, reference designs and materials relating to evaluation modules, (collectively, “TI Resources”) are intended to assist designers who are developing applications that incorporate TI products;...
Page 13 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 14 FCC Interference Statement for Class B EVM devices NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
Page 15 【無線電波を送信する製品の開発キットをお使いになる際の注意事項】開発キットの中には技術基準適合証明を受けていないものがあります。技術適合証明を受けていないもののご使用に際しては、電波法遵守のため、以下のいずれかの措置を取っていただく必要がありますのでご注意ください。 1. 電波法施行規則第6条第1項第1号に基づく平成18年3月28日総務省告示第173号で定められた電波暗室等の試験設備でご使用いただく。 2. 実験局の免許を取得後ご使用いただく。 3. 技術基準適合証明を取得後ご使用いただく。なお、本製品は、上記の「ご使用にあたっての注意」を譲渡先、移転先に通知しない限り、譲渡、移転できないものとします。上記を遵守頂けない場合は、電波法の罰則が適用される可能性があることをご留意ください。日本テキサス・インスツルメンツ株式会社東京都新宿区西新宿６丁目２４番１号西新宿三井ビル 3.3.3 Notice for EVMs for Power Line Communication: Please see http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page 電力線搬送波通信についての開発キットをお使いになる際の注意事項については、次のところをご覧ください。http:/ /www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page 3.4 European Union 3.4.1 For EVMs subject to EU Directive 2014/30/EU (Electromagnetic Compatibility Directive): This is a class A product intended for use in environments other than domestic environments that are connected to a low-voltage power-supply network that supplies buildings used for domestic purposes.
Page 16 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 © 2017, Texas Instruments Incorporated...
Page 17 IMPORTANT NOTICE FOR TI DESIGN INFORMATION AND RESOURCES Texas Instruments Incorporated (‘TI”) technical, application or other design advice, services or information, including, but not limited to, reference designs and materials relating to evaluation modules, (collectively, “TI Resources”) are intended to assist designers who are developing applications that incorporate TI products;...