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부품번호 | U642B 기능 |
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기능 | Automotive Wipe/Wash or Interval Switch | ||
제조업체 | TEMIC Semiconductors | ||
로고 | |||
전체 6 페이지수
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)
U642B
Thermal Resistance
Junction ambient
Parameters
DIP8
SO8
Electrical Characteristics
Symbol
RthJA
RthJA
Value
110
160
VBatt = 12 V, Tamb = 25°C, (see figure KEIN MERKER) unless otherwise specified.
Parameters
Test Conditions / Pins Symbol
Supply voltage
Supply current
Z-diode limitation
Overvoltage
Pin 8
VBatt
I8
V2
Threshold current
I1
Threshold voltage
Relay control output
Pin 7
VBatt
Saturation voltage
Reverse current
I7 = 100 mA
I7 = 200 mA
Park switch
WInternal pull-up resistance R6 = 10 k
Switching threshold voltage
Pin 6
Protection diode
I6 = –10 mA
I6 = 10 mA
Input C2
Pin 3
Internal resistance
WInterval input, R2 = 2.7 to 30 k
Pin 2
Protection diode
WWIWA Input, R5 = 10 k
I2 = –10 mA
I2 = 30 mA/10 ms
Pin 5
Switching threshold/
Hysteresis
V7
I7
R6
V6
V6
V6
R3
V2
V5
Protection diode
I5 = –10 mA
V
I5 = 10 mA
W W mSwitching Characteristics, R4 = 47 k to 300 k , I4 = –150 A
Interval time
WR3 = 0 k
WR3 = 10 k
t2
Switch-ON time
After-wipe-time
WR4 = 130 k
Pin 5
ton
t5
Min. Typ.
9
10
–7.6
–50
35
50
–3.3
–0.8
7.6
100
–0.8
7.6
–1.4/–5.4
–0.8
7.6
3.6 4
10.8 12
100
4.75 5.25
Max.
16.5
–1.0
–1.5
–0.1
4.4
13.2
5.75
Unit
K/W
K/W
Unit
V
mA
V
mA
V
V
mA
kW
V
V
V
W
V
V
V
s
ms
s
4 (6) TELEFUNKEN Semiconductors
Rev. A1, 13-Feb-97
4페이지 | |||
구 성 | 총 6 페이지수 | ||
다운로드 | [ U642B.PDF 데이터시트 ] |
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구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
U642B | Automotive Wipe/Wash or Interval Switch | TEMIC Semiconductors |
U642B | Interval- and Wipe/ Wash Wiper Control IC | ATMEL Corporation |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |