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Numéro de référence | U642B | ||
Description | Interval- and Wipe/ Wash Wiper Control IC | ||
Fabricant | ATMEL Corporation | ||
Logo | |||
1 Page
Interval- and Wipe/ Wash Wiper Control IC
U642B
Description
As a convenience feature of the windshield wiper
intermittent and wipe/wash operation are implemented in
most of the automobiles. The U642B is the low-cost
solution for an accurate timing function control.
Wipe/wash mode has priority over interval mode. Interval
pause and afterwiping 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 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
Block Diagram
VS
8
OUT
7
Load-dump
comparator
PARK
6
VRef
WASH
5
VRef
Park switch Input
comparator comparator
VRef
VRef
Logic
Wipe / wash
comparator
Interval
comparator
A
B
C
DE F
1
GND
23
INT Ct
Figure 1. Block diagram
4
Rt
94 8950
Rev. A4, 10-Apr-01
1 (7)
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Pages | Pages 7 | ||
Télécharger | [ U642B ] |
No | Description détaillée | Fabricant |
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 |
US18650VTC5A | Lithium-Ion Battery | Sony |
TSPC106 | PCI Bus Bridge Memory Controller | ATMEL |
TP9380 | NPN SILICON RF POWER TRANSISTOR | Advanced Semiconductor |
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