U842B Description
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.
U842B Key Features
- With park switch signal: 3 cycles
- Without park switch signal: 2.8 s
- detection 28 V
- 250 mV +
- 25 pF 21 V WASH 2 +
- 25 pF 4 PAUS Figure 2. Block diagram 21 V 5 OSC