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User's Guide
REF35 Evaluation Module
The REF35 Evaluation Module (EVM) is an ultra low-power precision voltage reference evaluation module that
demonstrates the
REF35
1
Overview..................................................................................................................................................................................2
1.1 REF35EVM Features.........................................................................................................................................................
1.2 REF35EVM Schematic......................................................................................................................................................
Materials...............................................................................................................................................4
Board..............................................................................................................................................................5
Guide..................................................................................................................................................................6
2.1 Electrostatic Discharge Warning........................................................................................................................................
2.2 Power Supply Setup and Functional Test..........................................................................................................................
3 Layout......................................................................................................................................................................................
History......................................................................................................................................................................9
Schematic..............................................................................................................................................3
Figure 1-2. REF35EVM Board Top..............................................................................................................................................
Figure 1-3. REF35EVM Board Bottom........................................................................................................................................
Layer...................................................................................................................................................................7
Figure 3-2. Bottom Layer.............................................................................................................................................................
Mask........................................................................................................................................................9
BOM........................................................................................................................................................4
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SNAU276A - JANUARY 2022 - REVISED NOVEMBER 2023
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ABSTRACT
integrated circuit from Texas Instruments.
Table of Contents
List of Figures
List of Tables
Copyright © 2023 Texas Instruments Incorporated
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REF35 Evaluation Module
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Summary of Contents for Texas Instruments REF35
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Page 1: Table Of Contents
Table of Contents User's Guide REF35 Evaluation Module ABSTRACT The REF35 Evaluation Module (EVM) is an ultra low-power precision voltage reference evaluation module that demonstrates the REF35 integrated circuit from Texas Instruments. Table of Contents Overview....................................2 1.1 REF35EVM Features................................. -
Page 2: Overview
6 V. The REF35 uses only 1.4 μA of current in active mode. This device comes with an enable pin that allows the device to be set in shutdown mode. The REF35 consumes only 0.1 μA of current under the shutdown condition. REF35 is available for a wide range of applications such as flow transmitters, blood glucose monitors, servo drive control modules, power quality analyzers, fault indicators, oscilloscopes and process analytics. -
Page 3: Ref35Evm Schematic
Overview 1.2 REF35EVM Schematic The schematic for the REF35EVM is illustrated in Figure 1-1. Figure 1-1. REF35EVM Schematic SNAU276A – JANUARY 2022 – REVISED NOVEMBER 2023 REF35 Evaluation Module Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated... -
Page 4: Ref35Evm Bill Of Materials
Ultra Low-Power, High- SOT23-6 REF35125QDBVR Texas Instruments Precision Voltage Reference, SOT23-6 150-mA High-Voltage WSON-6 TPS7B8150QDRVRQ1 Texas Instruments Ultralow-IQ Low-Dropout Regulator,DRV0006A (WSON-6) REF35 Evaluation Module SNAU276A – JANUARY 2022 – REVISED NOVEMBER 2023 Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated... -
Page 5: Ref35Evm Board
The PCB layout for the REF35EVM is illustrated in Figure 1-2 Figure 1-3. Figure 1-2. REF35EVM Board Top Figure 1-3. REF35EVM Board Bottom SNAU276A – JANUARY 2022 – REVISED NOVEMBER 2023 REF35 Evaluation Module Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated... -
Page 6: Quick Setup Guide
Normal operation: If directly connecting the REF35 to the lab supply, a A 5-V power supply capable of 50 mA of current is required (to handle load transients). Set the Power Select jumpers to Lab. The REF35 consumes 1.4 uA of current during normal operating and has a maximum 10 mA of output current for maintaining regulated voltage. -
Page 7: Layout
Figure 3-3 shows the top solder mask of the EVM. Figure 3-1. Top Layer SNAU276A – JANUARY 2022 – REVISED NOVEMBER 2023 REF35 Evaluation Module Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated... -
Page 8: Figure 3-2. Bottom Layer
Layout www.ti.com Figure 3-2. Bottom Layer REF35 Evaluation Module SNAU276A – JANUARY 2022 – REVISED NOVEMBER 2023 Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated... -
Page 9: Revision History
Revision History Figure 3-3. Top Solder Mask SNAU276A – JANUARY 2022 – REVISED NOVEMBER 2023 REF35 Evaluation Module Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated... - Page 10 Updated the numbering format for tables, figures, and cross-references throughout the document....• Added a note and information about output voltage and shutdown mode............REF35 Evaluation Module SNAU276A – JANUARY 2022 – REVISED NOVEMBER 2023 Submit Document Feedback Copyright © 2023 Texas Instruments Incorporated...
- Page 11 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 12 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 13 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 14 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 15 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 © 2023, Texas Instruments Incorporated...
- Page 16 TI products. TI’s provision of these resources does not expand or otherwise alter TI’s applicable warranties or warranty disclaimers for TI products. TI objects to and rejects any additional or different terms you may have proposed. IMPORTANT NOTICE Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2023, Texas Instruments Incorporated...
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