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IMPORTANT NOTICE

Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements,
and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should
obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are
sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment.

TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI’s standard
warranty. Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty. Except where
mandated by government requirements, testing of all parameters of each product is not necessarily performed.

TI assumes no liability for applications assistance or customer product design. Customers are responsible for their products and
applications using TI components. To minimize the risks associated with customer products and applications, customers should provide
adequate design and operating safeguards.

TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right, copyright, mask work right,
or other TI intellectual property right relating to any combination, machine, or process in which TI products or services are used. Information
published by TI regarding third-party products or services does not constitute a license from TI to use such products or services or a
warranty or endorsement thereof. Use of such information may require a license from a third party under the patents or other intellectual
property of the third party, or a license from TI under the patents or other intellectual property of TI.

Reproduction of TI information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompanied
by all associated warranties, conditions, limitations, and notices. Reproduction of this information with alteration is an unfair and deceptive
business practice. TI is not responsible or liable for such altered documentation. Information of third parties may be subject to additional
restrictions.

Resale of TI products or services with statements different from or beyond the parameters stated by TI for that product or service voids all
express and any implied warranties for the associated TI product or service and is an unfair and deceptive business practice. TI is not
responsible or liable for any such statements.

TI products are not authorized for use in safety-critical applications (such as life support) where a failure of the TI product would reasonably
be expected to cause severe personal injury or death, unless officers of the parties have executed an agreement specifically governing
such use. Buyers represent that they have all necessary expertise in the safety and regulatory ramifications of their applications, and
acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products
and any use of TI products in such safety-critical applications, notwithstanding any applications-related information or support that may be
provided by TI. Further, Buyers must fully indemnify TI and its representatives against any damages arising out of the use of TI products in
such safety-critical applications.

TI products are neither designed nor intended for use in military/aerospace applications or environments unless the TI products are
specifically designated by TI as military-grade or "enhanced plastic." Only products designated by TI as military-grade meet military
specifications. Buyers acknowledge and agree that any such use of TI products which TI has not designated as military-grade is solely at
the Buyer's risk, and that they are solely responsible for compliance with all legal and regulatory requirements in connection with such use.

TI products are neither designed nor intended for use in automotive applications or environments unless the specific TI products are
designated by TI as compliant with ISO/TS 16949 requirements. Buyers acknowledge and agree that, if they use any non-designated
products in automotive applications, TI will not be responsible for any failure to meet such requirements.

Following are URLs where you can obtain information on other Texas Instruments products and application solutions:

Products

Applications

Amplifiers

amplifier.ti.com

Audio

www.ti.com/audio

Data Converters

dataconverter.ti.com

Automotive

www.ti.com/automotive

DLP® Products

www.dlp.com

Communications and

www.ti.com/communications

Telecom

DSP

dsp.ti.com

Computers and

www.ti.com/computers

Peripherals

Clocks and Timers

www.ti.com/clocks

Consumer Electronics

www.ti.com/consumer-apps

Interface

interface.ti.com

Energy

www.ti.com/energy

Logic

logic.ti.com

Industrial

www.ti.com/industrial

Power Mgmt

power.ti.com

Medical

www.ti.com/medical

Microcontrollers

microcontroller.ti.com

Security

www.ti.com/security

RFID

www.ti-rfid.com

Space, Avionics &

www.ti.com/space-avionics-defense

Defense

RF/IF and ZigBee® Solutions

www.ti.com/lprf

Video and Imaging

www.ti.com/video

Wireless

www.ti.com/wireless-apps

Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265

Copyright © 2010, Texas Instruments Incorporated

Содержание ISO1176T

Страница 1: ...th a tool for evaluation and the successful design of an end product Contents 1 Overview 2 2 Recommended Equipment 8 List of Figures 1 ISO1176T Device Pinout and Block Diagram 3 2 ISO35T Device Pinout and Block Diagram 3 3 ISO3086T Device Pinout and Block Diagram 3 4 ISO1176T 35T 3086TEVM Board 5 5 Point to Point Simplex Circuit 6 6 Parallel Terminated Simplex Circuit 6 7 Five Node Multipoint Circ...

Страница 2: ... careful when using the EVM to test isolation voltage Finally the ISO1176TEVM allows half duplex operation whereas the ISO35T and ISO3086T are full duplex devices The PCBs are configured for either half or full duplex operation in their as shipped configuration Changes between configurations can easily be done using the notes provided on the schematic The EVMs allow the user to evaluate half duple...

Страница 3: ...re 2 ISO35T Device Pinout and Block Diagram Figure 3 ISO3086T Device Pinout and Block Diagram 1 1 PROFIBUS RS 485 The TIA EIA 485 also known as RS 485 standard was created in response to a demand from the data communications community for a general purpose high speed balanced interface standard for multipoint applications The standard Electrical Characteristics of Generators and Receivers for Use ...

Страница 4: ...cifically for these types of environments The two standards are indeed very similar 1 2 EVM Kit Contents 1 2 1 ISO1176TEVM Kit Contents ISO1176TEVM circuit board with ISO1176TDW installed 6510416 1 This PCB is configured with a DA2304 AL transformer and LP2985A 50DBVR LDO for 3 V to 5 V operation on the logic side of the device and 5 V operation on the bus side 1 2 2 ISO35TEVM Kit Contents ISO35TE...

Страница 5: ...e EVMs can be obtained to allow the user to construct various bus configurations With just two EVMs the user may evaluate performance of a point to point simplex parallel terminated point to point simplex and two node multipoint operation When using multiple EVMs all of these modes of operation can be configured through onboard jumpers external cabling and the R7 R10 resistors 5 SLLU122A April 201...

Страница 6: ... tied to GND1 Note that with only a single termination the differential bus voltage is higher than normal Figure 5 Point to Point Simplex Circuit This configuration also can have a termination at the source and load parallel terminated as shown Figure 6 thereby keeping nominal PROFIBUS RS 485 signal levels Figure 6 Parallel Terminated Simplex Circuit 1 3 2 Multipoint The multipoint configuration i...

Страница 7: ...y This extended common mode range is important because communications between equipment located hundreds of meters apart usually means a voltage offset exists between the grounds of each node The EVMs can be configured with three power supplies with isolated outputs in such a way as to input a fixed offset between the grounds see Figure 7 This induces a ground potential difference voltage VGPD bet...

Страница 8: ... configured for each case 2 1 EVM Configurations The schematic for the ISO1176TEVM appears on the last page of this manual Table 1 contains a list of the onboard jumpers and their function as well as the input and output loading installed on the board for the half duplex ISO1176TEVM Table 2 contains the same information for the full duplex ISO35TEVM and ISO3086TEVM Table 1 EVM Configuration Option...

Страница 9: ...T device R9 54 Ω only R7 R8 AND R10 R7 R8 and R10 for full duplex are uninstalled device Table 2 EVM Configuration Options for ISO35T and ISO3086T Jumper Function Configuration I O Load DATA CONTROL SIDE JUMPERS JMP1 Receiver Output R1 see JMP16 JMP2 Receiver Enable R2 50 Ω 1 JMP3 Driver Enable R3 50 Ω 1 JMP4 Driver Input R4 50 Ω 1 R7 Uninstalled JMP6 D1 D2 Test Point JMP16 Rout Load Jumper short ...

Страница 10: ... Table 5 Table 3 ISO1176TEVM Bill of Material Item Qty Reference Value Footprint Manufacturer Part Number 1 1 C2 68 µF cc7260 SPRAGUE 592D68X0010R2T 2 1 C3 10 µF cc7343 SPRAGUE 293D106X0035D2W 3 1 C4 1 µF cc1206 AVX 12063G105ZATRA 4 1 C5 0 1 µF cc1206 AVX 12065C104JATMA 5 1 C6 0 01 µF cc0805 AVX 06033G102JATMA 6 1 C7 DNI cc0805 7 2 C15 C17 10 µF cc1206 8 1 C16 22 µF cc1210 9 2 D1 D2 1N5817 10 10 J...

Страница 11: ...35T 20 1 U3 LP2985A 33DBVR SOT23 5 TI LP2985A 33DBVR Table 5 ISO3086TEVM Bill of Materials Item QTY Reference Value Footprint Manufacturer Part Number 1 1 C2 68 µF cc7260 SPRAGUE 592D68X0010R2T 2 1 C3 10 µF cc7343 SPRAGUE 293D106X0035D2W 3 1 C4 1 µF cc1206 AVX 12063G105ZATRA 4 1 C5 0 1 µF cc1206 AVX 12065C104JATMA 5 1 C6 0 01 µF cc0805 AVX 06033G102JATMA 6 1 C7 DNI cc0805 7 2 C15 C17 10 µF cc1206 ...

Страница 12: ...ignal routing The remaining layers Figure 11 and Figure 13 are power and ground planes These are split planes to keep the Vcc1 GND1 separate from Vcc2 GND2 The I O traces are designed to have a characteristic impedance of 50 Ω Figure 10 PCB Top Layer 12 ISO1176T 35T 3086T Evaluation Module SLLU122A April 2010 Revised July 2010 Copyright 2010 Texas Instruments Incorporated ...

Страница 13: ...www ti com Recommended Equipment Figure 11 Silk Screen Top Side 13 SLLU122A April 2010 Revised July 2010 ISO1176T 35T 3086T Evaluation Module Copyright 2010 Texas Instruments Incorporated ...

Страница 14: ...Recommended Equipment www ti com Figure 12 Signal Traces Bottom Layer 14 ISO1176T 35T 3086T Evaluation Module SLLU122A April 2010 Revised July 2010 Copyright 2010 Texas Instruments Incorporated ...

Страница 15: ...www ti com Recommended Equipment Figure 13 Silkscreen Bottom Layer 15 SLLU122A April 2010 Revised July 2010 ISO1176T 35T 3086T Evaluation Module Copyright 2010 Texas Instruments Incorporated ...

Страница 16: ...2 Enable 3 NR 4 Vout 5 Vin 1 C17 10uF C17 10uF C7 DNI C7 DNI C3 10 uF C3 10 uF JMP25 Header 3x1 JMP25 Header 3x1 1 2 3 JMP29 Header 3x1 JMP29 Header 3x1 1 2 3 JMP6 Header 4x1 JMP6 Header 4x1 1 2 3 4 T1 DA2303_AL T1 DA2303_AL 1 2 3 4 5 6 7 8 JMP28 Header 3x1 JMP28 Header 3x1 1 2 3 JMP4 Header 4x1 JMP4 Header 4x1 1 2 3 4 JMP32 Header 2x1 JMP32 Header 2x1 1 2 JMP1 Header 3x1 JMP1 Header 3x1 1 2 3 C4 ...

Страница 17: ...roduct This notice contains important safety information about temperatures and voltages For additional information on TI s environmental and or safety programs please contact the TI application engineer or visit www ti com esh No license is granted under any patent right or other intellectual property right of TI covering or relating to any machine process or combination in which such TI products...

Страница 18: ...ch statements TI products are not authorized for use in safety critical applications such as life support where a failure of the TI product would reasonably be expected to cause severe personal injury or death unless officers of the parties have executed an agreement specifically governing such use Buyers represent that they have all necessary expertise in the safety and regulatory ramifications o...

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