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參數(shù)資料
| 型號： | U2642B-FP |
| 英文描述： | Intermittent- and Wipe/Wash Control for Wiper Systems |
| 中文描述： | 間歇性和擦/清洗控制雨刮器系統(tǒng) |
| 文件頁數(shù)： | 1/10頁 |
| 文件大小： | 178K |
| 代理商： | U2642B-FP |
U2642B
TELEFUNKEN Semiconductors
Rev. A2, 02-Dec-97
1 (10)
Intermittent- and Wipe/Wash Control for Wiper Systems
Description
With the U264xB, TEMIC Semiconductors developed a
family of intermittent- and wipe/wash control circuits for
windshield or backlite wiper systems with identical basic
functions. The circuit design provides the possibility to
generate ”x” versions using different metallization
masks. Thus, it is easy to verify a broad range of time se-
quences which can be set independently of each other.
Features
Relay activation can be controlled by a limit switch of
the wiper motor or by a fixed activation period for
systems without limit switch
Debounced input stages
Enable/disable of pre-wash delay by program pin
Polarity of WIWA: V
Batt
Polarity of INT:
V
Batt
Relay output is protected with a clamping diode
Relay activation:
0.64 s
Interval pause:
10 s
After wiping:
5.8 s
Pre-wash delay:
0.91 s
Wipe/wash mode with priority
Protected in accordance to ISO/TR 7637–1
EMC with intergrated filters
Ordering Information
Extended Type Number
U2642B
U2642B–FP
Package
DIP8
SO8
Remarks
Block Diagram
21 V
21 V
21 V
21 V
Input
comparator
Voltage
stabilization
and
POR
Logic
Load-
dump
detection
and
output
control
Oscillator
21 V
Open-collector
relay driver
VS
OSC
INT
WIWA
LS
PP
GND
REL
13944
Figure 1.
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