IK642B Datasheet, PDF (1/11 Pages) IK Semicon Co., Ltd – load-dump protected

TECHNICAL DATA
INTERVAL- and WIPE/WASH WIPER CONTROL IC _IK642B
The IK642B is a bi-polar integrated circuit designed for the
wiper application in the automotive market. It includes wipe, wash
and internal mode.
SO8
FEATURES
 Interval Pause: 4 to 20 s
 After-wiping Time: 2 to 20 s
 Wiper Motor's Park Switch
 Wipe/Wash Mode Priority
 One External Capacitor Determines All Time Sequences
 Relay Driver with Z-diode
 Load-dump Protected
 Prewash Delay 300mS
 Interference Protection According to VDE 0839 or ISO/TR 7637/1
DIP8
Device
IK642BN
IK642BDT
IK642BD
ORDERING INFORMATION
Operating
Temperature Range
Package
DIP8
Т_А = -40 to +85 С
SO8
SO8
Packing
Tube
Tape & Reel
Tube
FUNCTIONAL DESCRIPTION
As a convenience feature of the windshield wiper, intermittent and wipe/wash
operation functions are implemented in most of the automobiles. The IK642B is a cost-
effective 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 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 IK642B.
1
2013 June, Ver. 00