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ST STEVAL-IFP008V1 handbook

1. 277 STEVAL IFPOO8V1 Demonstration board for the CLT3 4B current limited termination Features For IEC61131 2 type 1 and 3 inputs 4 input channel topology Fully integrated internally fixed current limiter Optocoupler output drive Wide range supply voltage and temperature operation Description The CLT3 4B is a quadruple logic input termination for sensor or mechanical switch interfaces It is designed to work in 24 VDC applications such as PLCs programmable logic controllers PACs programmable automation controllers and distributed I O systems used in factory automation The device optimizes the input VI characteristic to reduce its power dissipation This becomes critical when the application cabinet or housing requires higher protection levels such as IP65 and 1067 These closed cabinets are used in various automated lines including the food and chemical industry The power dissipated inside the module is very limited as there is usually no air circulation inside the box The current limitation also reduces the power losses in the sensor July 2008 Data Brief H D 4 E s 97 n Hir A A a LI A a D ER 757 RoHS STEVAL IFPO08V1 The most important aspect of the CLT3 4B is the electrical protection and susceptibility its brings to the application The CLT3 4B implements efficient protection diodes on each input and supply volt age line Serial r
2. AT USER S OWN RISK Resale of ST products with provisions different from the statements and or technical features set forth in this document shall immediately void any warranty granted by ST for the ST product or service described herein and shall not create or extend in any manner whatsoever any liability of ST ST and the ST logo are trademarks or registered trademarks of ST in various countries Information in this document supersedes and replaces all information previously supplied The ST logo is a registered trademark of STMicroelectronics All other names are the property of their respective owners 2008 STMicroelectronics All rights reserved STMicroelectronics group of companies Australia Belgium Brazil Canada China Czech Republic Finland France Germany Hong Kong India Israel Italy Japan Malaysia Malta Morocco Singapore Spain Sweden Switzerland United Kingdom United States of America www st com D 4 4
3. esistors ensure a higher level of susceptibility of the entire input module Thanks to its compact TSSOP20 package the CLT3 4B device occupies very little space on the PCB compared to an equivalent discrete solution Rev 1 1 4 For further information contact your local STMicroelectronics sales office www st com STEVAL IFPOO8V1 Block diagram Block diagram 1 Circuit block diagram Figure 1 ec00NdV A A RRL al A A A 1037 0031 6037 037 78001 7100 LNO 2100 LLNO vENOd LO 91gtr L 19 teasa clasa YNI NI CN LNI OA 34 00 du cc du cc du cc 2 4 STEVAL IFPOO8V1 Revision history 2 Revision history Table 1 Document revision history Date Revision Changes 07 Jul 2008 1 Initial release 3 4 STEVAL IFPOO8V1 Please Read Carefully Information in this document is provided solely in connection with ST products STMicroelectronics NV and its subsidiaries ST reserve the right to make changes corrections modifications or improvements to this document and the products and services described herein at any time without notice All ST products are sold pursuant to ST s terms and conditions of sale Purchasers are solely responsible for the choice selection and use of the ST products and services described herein and ST assu
4. mes no liability whatsoever relating to the choice selection or use of the ST products and services described herein No license express or implied by estoppel or otherwise to any intellectual property rights is granted under this document If any part of this document refers to any third party products or services it shall not be deemed a license grant by ST for the use of such third party products or services or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoever of such third party products or services or any intellectual property contained therein UNLESS OTHERWISE SET FORTH IN ST S TERMS AND CONDITIONS OF SALE ST DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY WITH RESPECT TO THE USE AND OR SALE OF ST PRODUCTS INCLUDING WITHOUT LIMITATION IMPLIED WARRANTIES OF MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION OR INFRINGEMENT OF ANY PATENT COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT UNLESS EXPRESSLY APPROVED IN WRITING BY AN AUTHORIZED ST REPRESENTATIVE ST PRODUCTS ARE NOT RECOMMENDED AUTHORIZED OR WARRANTED FOR USE IN MILITARY AIR CRAFT SPACE LIFE SAVING OR LIFE SUSTAINING APPLICATIONS NOR IN PRODUCTS OR SYSTEMS WHERE FAILURE OR MALFUNCTION MAY RESULT IN PERSONAL INJURY DEATH OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE ST PRODUCTS WHICH ARE NOT SPECIFIED AS AUTOMOTIVE GRADE MAY ONLY BE USED IN AUTOMOTIVE APPLICATIONS

ST STEVAL-IFP008V1 handbook

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