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U642B 데이터시트 PDF




ATMEL Corporation에서 제조한 전자 부품 U642B은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

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부품번호 U642B 기능
기능 Interval- and Wipe/ Wash Wiper Control IC
제조업체 ATMEL Corporation
로고 ATMEL Corporation 로고


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U642B 데이터시트, 핀배열, 회로
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)




U642B pdf, 반도체, 판매, 대치품
U642B
Absolute Maximum Ratings
Parameters
Supply voltage t = 60 s Terminal 15, Pin 8
Supply current
t = 2 ms
t = 200 ms
Pin 8
Relay control output current (DC)
t = 200 ms
Pin 7
Pulse current (control inputs) t = 200 ms
Park switch, S1
Wipe/Wash switch, S3
Interval switch, S2
Power dissipation Tamb = 90°C
Storage temperature range
Pin 6
Pin 5
Pin 2
Ambient temperature range
Symbol
VBatt
I8
I8
I7
I7
I6
I5
I2
Ptot
Tstg
Tamb
Value
28
1.5
150
200
1.2
50
50
50
500
–55 to +125
–40 to +85
Unit
V
A
mA
mA
A
mA
mW
°C
°C
Thermal Resistance
Parameters
Junction ambient
DIP8
SO8
Symbol
RthJA
RthJA
Value
120
160
Unit
K/W
K/W
Electrical Characteristics
VBatt = 12 V, Tamb = 25°C, reference point is Pin 8 (see figure 3) unless otherwise specified.
Parameters
Test Conditions / Pins Symbol Min. Typ.
Supply voltage
Supply current
Z-diode limitation
Pin 8
VBatt
I8
V1
9
10
7.6
Overvoltage
Threshold current
I1 –50
Threshold voltage
Relay control output
Pin 7
VBatt
35
Saturation voltage
Leakage current
Park switch
I7 = 100 mA
I7 = 200 mA
Pin 6
V7
I7
100
Internal pull-up resistance
Switching threshold voltage
Protection diode
Input Ct
Internal resistance
Interval input, R2 = 2.7 to 30 kW
Protection diode
R6 = 10 kW
I6 = –10 mA
I6 = 10 mA
Pin 3
Pin 2
I2 = –10 mA
I2 = 30 mA/10 ms
R6
V6
V6
V6
R3
V2
50
–3.3
–0.8
7.6
100
–0.8
7.6
Max.
16.5
–1.0
–1.5
Unit
V
mA
V
mA
V
V
mA
kW
V
V
V
W
V
4 (7) Rev. A4, 10-Apr-01

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U642B 전자부품, 판매, 대치품
U642B
Ozone Depleting Substances Policy Statement
It is the policy of Atmel Germany GmbH to
1. Meet all present and future national and international statutory requirements.
2. Regularly and continuously improve the performance of our products, processes, distribution and operating systems
with respect to their impact on the health and safety of our employees and the public, as well as their impact on
the environment.
It is particular concern to control or eliminate releases of those substances into the atmosphere which are known as
ozone depleting substances (ODSs).
The Montreal Protocol (1987) and its London Amendments (1990) intend to severely restrict the use of ODSs and forbid
their use within the next ten years. Various national and international initiatives are pressing for an earlier ban on these
substances.
Atmel Germany GmbH has been able to use its policy of continuous improvements to eliminate the use of ODSs listed
in the following documents.
1. Annex A, B and list of transitional substances of the Montreal Protocol and the London Amendments respectively
2. Class I and II ozone depleting substances in the Clean Air Act Amendments of 1990 by the Environmental
Protection Agency (EPA) in the USA
3. Council Decision 88/540/EEC and 91/690/EEC Annex A, B and C (transitional substances) respectively.
Atmel Germany GmbH can certify that our semiconductors are not manufactured with ozone depleting substances
and do not contain such substances.
We reserve the right to make changes to improve technical design and may do so without further notice.
Parameters can vary in different applications. All operating parameters must be validated for each customer
application by the customer. Should the buyer use Atmel Wireless & Microcontrollers products for any unintended
or unauthorized application, the buyer shall indemnify Atmel Wireless & Microcontrollers against all claims,
costs, damages, and expenses, arising out of, directly or indirectly, any claim of personal damage, injury or death
associated with such unintended or unauthorized use.
Data sheets can also be retrieved from the Internet: http://www.atmel–wm.com
Atmel Germany GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany
Telephone: 49 (0)7131 67 2594, Fax number: 49 (0)7131 67 2423
Rev. A4, 10-Apr-01
7 (7)

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