Conclusion

AN2813

24/25

Doc ID 14923 Rev 1

7

Conclusion

With respect to the results obtained, the TDE1708DFT may be used in the operating mode

COM1 (4.8 kBaud) in p-switching (high-side) 3-wire sensors and up to operating mode

COM2 (38.4 kBaud) in push-pull 3-wire sensors.

Note:

In the case of push-pull configuration a precise compensation of the propagation turn-on

time temperature drift (Figure 18) is necessary to avoid cross conduction of the two

switches. The alternative driving configuration (Section 6: Alternative driving) partially

solves this issue for the price of employing two input pins for one switch.

8

References

1.

TDE1708DFT datasheet.

2.

AN495 application note.

3.

IO-Link Communication Specification, Version 0.98, February 2007 - see:

www.io-link.com/share/Downloads/IOL-Comm-Spec_10002_V10_090118.pdf.

9

Revision history

Table 3.

Document revision history

Date

Revision

Changes

09-Feb-2011

1

Initial release.