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PDF U642B Data sheet ( Hoja de datos )
| Número de pieza | U642B | |
| Descripción | Automotive Wipe/Wash or Interval Switch | |
| Fabricantes | TEMIC Semiconductors | |
| Logotipo |  |
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Automotive Wipe/Wash or Interval Switch
U642B
Description
As a convenience feature of the windshield wiper inter-
mittent and wipe/wash operation are implemented in
most of the automobiles. The U642B controls all timing
functions accurately at a reasonable price level. Interval
pause and afterwiping time can be set to fixed values with
the help of resistors in a broad time range. Added value
can be provided with an individual, continuous adjust-
ment 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
U642B.
Features
D Interval pause: 4 to 20 s
D Afterwiping time: 2 to 20 s
D Wiper motor’s park switch
D Wipe/wash mode priority
D One external capacitor, determines all time sequences
D Relay driver with Z-diode
D Interference protection according to VDE 0839 or
ISO/TR 7637/1
D Load-dump protected
Ordering Information
Extended Type Number
U642B
U642B–FP
Block Diagram
VS
8
Package
DIP8
SO8
Relay control
7
Load-dump
comparator
Remarks
S1
6
VRef
WI WA
5
VRef
Park switch Input
comparator comparator
VRef
VRef
Logic
Wipe / wash
comparator
Interval
comparator
A
B
C
DE
F
1
GND
TELEFUNKEN Semiconductors
Rev. A1, 13-Feb-97
23
Interval switch Timing (C2)
Figure 1. Block diagram
4
Timing (R)
94 8950
1 (6)
1 page  
Package Information
Package DIP8
Dimensions in mm
9.8
9.5
1.64
1.44
7.77
7.47
4.8 max
0.5 min 3.3
0.58
0.48 2.54
7.62
85
6.4 max
0.36 max
9.8
8.2
U642B
technical drawings
according to DIN
specifications
13021
14
Package SO8
Dimensions in mm
5.00
4.85
5.2
4.8
3.7
1.4
0.4
0.25 0.2
0.10 3.8
1.27 6.15
3.81 5.85
85
technical drawings
according to DIN
specifications
85
13034
TELEFUNKEN Semiconductors
Rev. A1, 13-Feb-97
5 (6)
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet U642B.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| U642B | Automotive Wipe/Wash or Interval Switch | TEMIC Semiconductors |
| U642B | Interval- and Wipe/ Wash Wiper Control IC |  ATMEL Corporation |
| U642B-FP | Interval- and Wipe/ Wash Wiper Control IC | ATMEL Corporation |
| U642B-FP | Automotive Wipe/Wash or Interval Switch | TEMIC Semiconductors |
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