INTERVAL AND WIPE/WASH WIPER CONTROL IC
Features
• Interval Pause: 4 to 20 s • After-wiping Time: 2 to 20 s • Wiper Motor's Park Switch • 0.6 s Prewash Delay • ...
Description
Features
Interval Pause: 4 to 20 s After-wiping Time: 2 to 20 s Wiper Motor's Park Switch 0.6 s Prewash Delay Wipe/Wash Mode Priority One External Capacitor Determines All Time Sequences Relay Driver with Z-diode Interference Protection According to VDE 0839 or ISO/TR 7637/1 Load-dump Protected
Description
The U641B is a bi-polar integrated circuit designed for the wiper application in the automotive market. It includes wipe, wash and internal mode.
Functional Description
As a convenience feature of the windshield wiper, intermittent and wipe/wash operation functions are implemented in most of the automobiles. The U641B is a costeffective solution for an accurate timing function control. Wipe/wash mode has priority over interval mode. Interval pause and after-wiping 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 ...
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