Texas Instruments ISO1541D User Manual Download Page 10 | Manualshive

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Texas Instruments ISO1541D User Manual Download Page 10

4 ISO154xEVM Layout

shows the top-layer routing of the ISO154xEVM.

Figure 4-1. ISO154xEVM Top-layer Routing

ISO154xEVM Layout

10

ISO154xEVM Low-Power Bidirectional I

2

C Isolators Evaluation Module

SLLU166A – JUNE 2012 – REVISED SEPTEMBER 2022

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Copyright © 2022 Texas Instruments Incorporated

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Summary of Contents for ISO1541D

Page 1: ... ISO1540 and ISO1541 Pinout 3 Figure 1 2 ISO154xEVM Top Photograph 3 Figure 1 3 ISO154xEVM Schematic 4 Figure 2 1 Basic EVM Operation 6 Figure 2 2 Typical Waveforms Inputs on Side 1 7 Figure 2 3 Typical Waveforms Inputs on Side 2 8 Figure 4 1 ISO154xEVM Top layer Routing 10 Figure 4 2 ISO154xEVM Bottom layer Ground Planes 11 List of Tables Table 1 1 ISO154xEVM Description 4 Table 3 1 ISO154x EVM B...

Page 2: ...put buffers on these devices are separated by TI s Isolation technology utilizing a silicon dioxide SiO2 barrier When used in conjunction with isolated power supplies these devices block high voltages isolate grounds and prevent noise currents from entering the local ground and interfering with or damaging sensitive circuitry The ISO1540 has two isolated bidirectional channels for clock and data l...

Page 3: ... 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 These jumpers also provide scope probe access to each pin Each signal line SDAx SCLx is configured with a 1 kΩ pull up resistor R1 to R8 to the corresponding power supply VCCx Reconfigure the value of this pull up resistor as per the application requirement 1 4 EVM ...

Page 4: ...ISO154x by default populated as ISO1541 J1 Side 1 power supply terminal block VCC1 J2 Side 2 power supply terminal block VCC2 Introduction www ti com 4 ISO154xEVM Low Power Bidirectional I2C Isolators Evaluation Module SLLU166A JUNE 2012 REVISED SEPTEMBER 2022 Submit Document Feedback Copyright 2022 Texas Instruments Incorporated ...

Page 5: ... 4 pin jumper to VCC1 SDA1 GND1 for U2 J9A J10A 4 pin jumper to VCC1 SCL1 GND1 for U2 J7B J8B 4 pin jumper to VCC2 SDA2 GND2 for U2 J9B J10B 4 pin jumper to VCC2 SCL2 GND2 for U2 C1 C2 C3 C4 1 0 µF filter capacitor C5 C6 C7 C8 0 1 µF filter capacitor R1 R2 R5 R6 1 kΩ 0603 footprint pull up resistor to VCC1 R3 R4 R7 R8 1 kΩ 0603 footprint pull up resistor to VCC2 www ti com Introduction SLLU166A JU...

Page 6: ... SCL1 remains pulled up to VCC1 J1 J2 U2 J3A J4A J5A J6A J3B J4B J5B J6B J7A J8A J9A J10A J7B J8B J9B J10B Power Supply VCC1 Power Supply VCC2 I C Transmitter 2 or Oscilloscope I C Transmitter 2 U1 Oscilloscope or Figure 2 1 Basic EVM Operation 2 2 Input Output Signal Characteristics Figure 2 2 illustrates SDA1 and SCL1 of U1 being treated as inputs and driven by an I2C transmitter connected to J3...

Page 7: ...utput waveforms for SDA1 and SCL1 are captured on the oscilloscope at J3A J4A and J5A J6A respectively Note the low level of the SDA1 and SCL1 outputs offset from the ground level This is due to the high output low level on side 1 designed to prevent a latch up state www ti com EVM Setup and Operation SLLU166A JUNE 2012 REVISED SEPTEMBER 2022 Submit Document Feedback ISO154xEVM Low Power Bidirecti...

Page 8: ...ropagate in mutually opposing directions However if using ISO1541 the SCL line is unidirectional and only allows the signal to propagate from SCL1 to SCL2 and not vice versa EVM Setup and Operation www ti com 8 ISO154xEVM Low Power Bidirectional I2C Isolators Evaluation Module SLLU166A JUNE 2012 REVISED SEPTEMBER 2022 Submit Document Feedback Copyright 2022 Texas Instruments Incorporated ...

Page 9: ...n jumper 4 J6A on EVM silkscreen is TP27 TP6 TP20 TP24 grouped as single row 4 pin jumper 5 J3B on EVM silkscreen is TP35 TP66 TP34 TP37 grouped as single row 4 pin jumper 6 J4B on EVM silkscreen is TP29 TP7 TP2 TP26 grouped as single row 4 pin jumper 7 J5B on EVM silkscreen is TP41 TP64 TP40 TP43 grouped as single row 4 pin jumper 8 J6B on EVM silkscreen is TP31 TP8 TP4 TP28 grouped as single row...

Page 10: ...he ISO154xEVM Figure 4 1 ISO154xEVM Top layer Routing ISO154xEVM Layout www ti com 10 ISO154xEVM Low Power Bidirectional I2C Isolators Evaluation Module SLLU166A JUNE 2012 REVISED SEPTEMBER 2022 Submit Document Feedback Copyright 2022 Texas Instruments Incorporated ...

Page 11: ...sions may differ from page numbers in the current version Changes from Revision June 2012 to Revision A September 2022 Page Replaced Capacitor with SiO2 2 www ti com Revision History SLLU166A JUNE 2012 REVISED SEPTEMBER 2022 Submit Document Feedback ISO154xEVM Low Power Bidirectional I2C Isolators Evaluation Module 11 Copyright 2022 Texas Instruments Incorporated ...

Page 12: ...other than TI b the nonconformity resulted from User s design specifications or instructions for such EVMs or improper system design or c User has not paid on time Testing and other quality control techniques are used to the extent TI deems necessary TI does not test all parameters of each EVM User s claims against TI under this Section 2 are void if User fails to notify TI of any apparent defects...

Page 13: ... These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation...

Page 14: ...y for convenience and should be verified by User 1 Use EVMs in a shielded room or any other test facility as defined in the notification 173 issued by Ministry of Internal Affairs and Communications on March 28 2006 based on Sub section 1 1 of Article 6 of the Ministry s Rule for Enforcement of Radio Law of Japan 2 Use EVMs only after User obtains the license of Test Radio Station as provided in R...

Page 15: ... any interfaces electronic and or mechanical between the EVM and any human body are designed with suitable isolation and means to safely limit accessible leakage currents to minimize the risk of electrical shock hazard User assumes all responsibility and liability for any improper or unsafe handling or use of the EVM by User or its employees affiliates contractors or designees 4 4 User assumes all...

Page 16: ...OR DAMAGES ARE CLAIMED THE EXISTENCE OF MORE THAN ONE CLAIM SHALL NOT ENLARGE OR EXTEND THIS LIMIT 9 Return Policy Except as otherwise provided TI does not offer any refunds returns or exchanges Furthermore no return of EVM s will be accepted if the package has been opened and no return of the EVM s will be accepted if they are damaged or otherwise not in a resalable condition If User feels it has...

Page 17: ...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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