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ZIOL2201 Datasheet(PDF) 63 Page - List of Unclassifed Manufacturers |
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ZIOL2201 Datasheet(HTML) 63 Page - List of Unclassifed Manufacturers |
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63 / 91 page  ZIOL2xxx – IC Family IO-Link compliant HV Line Driver IC Family Data Sheet January 31, 2012 © 2012 Zentrum Mikroelektronik Dresden AG — Rev. 2.2.1 All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. The information furnished in this publication is PRELIMINARY and subject to changes without notice. 63 of 90 4 Application Information ZIOL2xxx application circuits contain usually external components, which are required for overvoltage and reverse polarity protection. Table 4.1 provides a summary about requires components. The in the following figures used external components, in particular the special component type and it parameters are mentioned in this table.. The following schematics show standard application circuits in principle with the focus to the interface part of the physical level transceiver performed by the ZIOL2xxx Ics.. Figure 4.1 Simplified Application Circuit with the ZIOL2xxx in Device Mode In principle an IO-Link device cable interface (or the interface for a standard sensor/actuator) requires four (one channel) or six (Two channels) protection diodes. The diodes D4 … D7 are fast clipping schottky diodes. Those highly recommended diodes damp signal overshoots and make sure that in IO-Link device applications the device can detect supply power failures as illustrated in Figure 4.3. D2 and D3 provide the reverse polarity protection for the device unit as shown in Figure 4.1. Since there is normally no chance in IO-Link master applications to apply the supply voltage in reverse manner, the reverse polarity protection diodes D2 and D3 can be omitted in master applications (Figure 4.2). With respect to Figure 4.1 and Figure 4.2 the PFD pin (prior IC Rev B called M_EN pin) is connected to power or ground as it was required in using Rev A. Using this way of interconnections of the PFD pin requires disabling of the line-fail |
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