U642B Interval- and Wipe/ Wash Wiper Control IC Description As a convenience feature of the windshield wiper intermittent and wipe/wash operation are implemented in most of the automobiles.
The U642B is the low-cost solution for an accurate timing function control.
Wipe/wash mode has priority over interval mode.
Interval pause and afterwiping time can be set to fixed values by using resistors in a broad time range.
Added value can be provided with an individual, continuous adjustment of the interval pause by a potentiometer which may be built into the stalk.
For proper operation it is mandatory to feed the signal of the wiper motor‘s park switch into U642B.
Features D Interval pause: 4 to 2...

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