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User’s Guide

REF35EVM User's Guide

ABSTRACT

The REF35EVM is an ultra low-power precision voltage reference evaluation module that demonstrates the 

REF35

 integrated circuit from Texas Instruments (TI).

Table of Contents

1 Overview

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2

1.1 REF35EVM Features.........................................................................................................................................................

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1.2 REF35EVM Schematic......................................................................................................................................................

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1.3 REF35EVM Bill of Materials...............................................................................................................................................

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1.4 REF35EVM Board..............................................................................................................................................................

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2 Quick Setup Guide

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2.1 Electrostatic Discharge Warning........................................................................................................................................

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2.2 Power Supply Setup and Functional Test..........................................................................................................................

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3 Layout

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List of Figures

Figure 1-1. REF35EVM Schematic..............................................................................................................................................

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Figure 1-2. REF35EVM Board Top..............................................................................................................................................

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Figure 1-3. REF35EVM Board Bottom........................................................................................................................................

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Figure 3-1. Top Layer...................................................................................................................................................................

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Figure 3-2. Bottom Layer.............................................................................................................................................................

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Figure 3-3. Top Solder Mask........................................................................................................................................................

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List of Tables

Table 1-1. REF35EVM BOM........................................................................................................................................................

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Trademarks

All trademarks are the property of their respective owners.

www.ti.com

Table of Contents

SNAU276 – JANUARY 2022

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REF35EVM User's Guide

1

Copyright © 2022 Texas Instruments Incorporated

Содержание REF35EVM

Страница 1: ...uide 6 2 1 Electrostatic Discharge Warning 6 2 2 Power Supply Setup and Functional Test 6 3 Layout 7 List of Figures Figure 1 1 REF35EVM Schematic 3 Figure 1 2 REF35EVM Board Top 5 Figure 1 3 REF35EVM Board Bottom 5 Figure 3 1 Top Layer 7 Figure 3 2 Bottom Layer 8 Figure 3 3 Top Solder Mask 9 List of Tables Table 1 1 REF35EVM BOM 4 Trademarks All trademarks are the property of their respective own...

Страница 2: ...nd process analytics The REF35EVM features a user selectable wide VIN input which uses a TPS7B8150 linear regulator allowing the user to widen the input range to 40 V if so desired The VIN header can be connected to an external power supply to provide power All of the REF35 input and output pins are accessible for external connection via test headers 1 1 REF35EVM Features Includes REF35125QDBVR Fo...

Страница 3: ...The schematic for the REF35EVM is illustrated in Figure 1 1 Figure 1 1 REF35EVM Schematic www ti com Overview SNAU276 JANUARY 2022 Submit Document Feedback REF35EVM User s Guide 3 Copyright 2022 Texas Instruments Incorporated ...

Страница 4: ...TH TH PEC03SAAN Sullins Connector Solutions R1 1 499OHM RES 499 1 0 125 W AEC Q200 Grade 0 0805 0805 CRCW0805499RFKEA Vishay Dale R2 1 1k RES 1 00 k 1 0 125W AEC Q200 Grade 0 0805 0805 CRCW08051K00FKEA Vishay Dale R3 R4 2 0 RES 0 5 0 333 W AEC Q200 Grade 0 0805 0805 CRCW08050000Z0EAHP Vishay Dale R5 1 10M RES 10 0 M 1 0 125 W 0805 0805 CRCW080510M0FKEA Vishay Dale TP1 TP2 TP3 TP4 TP5 TP6 TP7 7 Tes...

Страница 5: ...5EVM is illustrated in Figure 1 2 and Figure 1 3 Figure 1 2 REF35EVM Board Top Figure 1 3 REF35EVM Board Bottom www ti com Overview SNAU276 JANUARY 2022 Submit Document Feedback REF35EVM User s Guide 5 Copyright 2022 Texas Instruments Incorporated ...

Страница 6: ...e positive power supply lead to the VIN_REF pin on the REF Power header pin on the left side of the board Connect the negative power supply lead to the GND pin on the REF Power header pin If powering the REF35 through the on EVM LDO a A 5 V up to the LDO max voltage 40 V power supply capable of 50 mA of current is required The Power Select jumpers should be set to LDO Connect the positive power su...

Страница 7: ...show the top and bottom layers and Figure 3 3 shows the top solder mask of the EVM Figure 3 1 Top Layer www ti com Layout SNAU276 JANUARY 2022 Submit Document Feedback REF35EVM User s Guide 7 Copyright 2022 Texas Instruments Incorporated ...

Страница 8: ...Figure 3 2 Bottom Layer Layout www ti com 8 REF35EVM User s Guide SNAU276 JANUARY 2022 Submit Document Feedback Copyright 2022 Texas Instruments Incorporated ...

Страница 9: ...Figure 3 3 Top Solder Mask www ti com Layout SNAU276 JANUARY 2022 Submit Document Feedback REF35EVM User s Guide 9 Copyright 2022 Texas Instruments Incorporated ...

Страница 10: ...o change without notice TI grants you permission to use these resources only for development of an application that uses the TI products described in the resource Other reproduction and display of these resources is prohibited No license is granted to any other TI intellectual property right or to any third party intellectual property right TI disclaims responsibility for and you will fully indemn...

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