U842B - Wiper Controller
The U842B circuit is designed as an interval and wipe/ wash timer for automotive wiper control.
The interval pause can be set in a range from 3 s to 11 s by an external 1-kW potentiometer.
Wipe/wash mode has priority over the interval mode.
The U842B controls the wiper motor with/without park switch
U842B Features
* D Interval input: low side D Wipe/ wash input: low side D Park input: high side (park position) D Output driver protected against short circuit D All time periods determined by RC oscillator D Fixed relay activation time of 500 ms D Adjustable interval pause from 3 s to 11 s D Fixed pre-wash delay o
