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User's Guide
ISO154xEVM Low-Power Bidirectional I
Evaluation Module
Mahit Warhadpande
1
Introduction.............................................................................................................................................................................2
1.1 Overview............................................................................................................................................................................
Contents.................................................................................................................................................2
1.3 Functional Configuration....................................................................................................................................................
Schematic..................................................................................................................................................................3
Operation......................................................................................................................................................6
2.1 Overview............................................................................................................................................................................
Characteristics....................................................................................................................................6
3 Bill of Materials.......................................................................................................................................................................
4 ISO154xEVM Layout.............................................................................................................................................................
History....................................................................................................................................................................11
Figure 1-2. ISO154xEVM Top Photograph..................................................................................................................................
Schematic...........................................................................................................................................4
Figure 2-1. Basic EVM Operation................................................................................................................................................
Figure 2-2. Typical Waveforms, Inputs on Side 1........................................................................................................................
Figure 2-3. Typical Waveforms, Inputs on Side 2........................................................................................................................
Figure 4-1. ISO154xEVM Top-layer Routing.............................................................................................................................
Table 1-1. ISO154xEVM Description...........................................................................................................................................
SLLU166A - JUNE 2012 - REVISED SEPTEMBER 2022
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Table of Contents
List of Figures
Pinout...................................................................................................................................3
Planes.............................................................................................................11
List of Tables
Materials....................................................................................................................................9
Copyright © 2022 Texas Instruments Incorporated
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C Isolators
ISO154xEVM Low-Power Bidirectional I
Table of Contents
Industrial Interface
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C Isolators Evaluation Module
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Summary of Contents for Texas Instruments ISO154xEVM
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Page 1: Table Of Contents
5 Revision History..................................11 List of Figures Figure 1-1. ISO1540 and ISO1541 Pinout...........................3 Figure 1-2. ISO154xEVM Top Photograph..........................Figure 1-3. ISO154xEVM Schematic............................4 Figure 2-1. Basic EVM Operation..............................Figure 2-2. Typical Waveforms, Inputs on Side 1........................Figure 2-3. Typical Waveforms, Inputs on Side 2........................ -
Page 2: Introduction
1 low-level input and thus preventing an internal logic latch that otherwise would occur with standard digital isolators. 1.2 ISO154xEVM Kit Contents 1. ISO154xEVM Circuit Board (PWB P/N 6547206) 2. ISO154xEVM User’s Guide (SLLU166 - this document) 3. -
Page 3: Evm Schematic
However, this EVM can be configured for use with two ISO1540s or two ISO1541s. Figure 1-2. ISO154xEVM Top Photograph An input or output pin can be tied either to supply voltage (VCCx) or Ground (GNDx) using the 4-pin jumpers on the EVM (J3A to J10A on side 1 and J3B to J10B on side 2). -
Page 4: Figure 1-3. Iso154Xevm Schematic
ISO154x, by default populated as ISO1541 Side 1 power supply terminal block (VCC1) Side 2 power supply terminal block (VCC2) ISO154xEVM Low-Power Bidirectional I C Isolators Evaluation Module SLLU166A – JUNE 2012 – REVISED SEPTEMBER 2022 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated... - Page 5 Introduction Table 1-1. ISO154xEVM Description (continued) Label Description TP15, TP47 Side 1 GND test point (GND1) TP18, TP34 Side 2 GND test point (GND2) TP13 VCC1 test point TP16 VCC2 test point J3A, J4A 4-pin jumper to VCC1, SDA1, GND1 for U1...
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Page 6: Evm Setup And Operation
1 output and input enabling the device to avoid a latch-up state. ISO154xEVM Low-Power Bidirectional I C Isolators Evaluation Module SLLU166A – JUNE 2012 – REVISED SEPTEMBER 2022 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated... -
Page 7: Figure 2-2. Typical Waveforms, Inputs On Side 1
This is due to the high output low level on side 1 designed to prevent a latch-up state. SLLU166A – JUNE 2012 – REVISED SEPTEMBER 2022 ISO154xEVM Low-Power Bidirectional I C Isolators Evaluation Module Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated... -
Page 8: Figure 2-3. Typical Waveforms, Inputs On Side 2
However, if using ISO1541, the SCL line is unidirectional and only allows the signal to propagate from SCL1 to SCL2 and not vice-versa. ISO154xEVM Low-Power Bidirectional I C Isolators Evaluation Module SLLU166A – JUNE 2012 – REVISED SEPTEMBER 2022 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated... -
Page 9: Bill Of Materials
Bill of Materials 3 Bill of Materials The parts list for the ISO154xEVM is shown in Table 3-1. Table 3-1. ISO154x EVM Bill of Materials Item Qty. References Part Manufacturer CAPACITOR, SMT, 0603, CERAMIC, 1.0 µF, 25 V, 10%,... -
Page 10: Iso154Xevm Layout
ISO154xEVM Layout www.ti.com 4 ISO154xEVM Layout Figure 4-1 shows the top-layer routing of the ISO154xEVM. Figure 4-1. ISO154xEVM Top-layer Routing ISO154xEVM Low-Power Bidirectional I C Isolators Evaluation Module SLLU166A – JUNE 2012 – REVISED SEPTEMBER 2022 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated... -
Page 11: Revision History
Revision History Figure 4-2 shows the bottom-layer ground planes (shaded areas). Figure 4-2. ISO154xEVM Bottom-layer Ground Planes 5 Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision * (June 2012) to Revision A (September 2022) Page •... - Page 12 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 13 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 14 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 15 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 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 © 2019, Texas Instruments Incorporated...
- Page 17 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 © 2022, Texas Instruments Incorporated...
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