U641B Datasheet | Atmel

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...