IC-OG_12 Datasheet, PDF (9/10 Pages) IC-Haus GmbH – 8-BIT DIFFERENTIAL SCANNING OPTO ENCODER

iC-OG
preliminary
8-BIT DIFFERENTIAL SCANNING OPTO ENCODER
APPLICATIONS INFORMATION
Using the test aid
The threshold current defined in the electrical charac-
teristic No. 602 must be exceeded at both pins TIP and
TIN simultaneously to activate the iC-OG’s built-in test
aid. Once it has been activated, the test aid does not
switch back to off-state until the current drops below
approx. 1 µA.
A clamp circuit as shown in Figure 2 also prevents
falling below the test aid turn-on threshold for a short
time. The output polarity of the iC-OG is to be changed
over with the switch.
Rev D1, Page 9/10
Figure 2: Wiring the test aid.
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