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PDF U6433B Data sheet ( Hoja de datos )
| Número de pieza | U6433B | |
| Descripción | Flasher/ 18-m Shunt/ Frequency Doubling Disabling | |
| Fabricantes | TEMIC Semiconductors | |
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U6433B
Flasher, 18-mW Shunt, Frequency Doubling Disabling
Description
The design of the U6433B is mainly based on the good
results of U6043B in terms of EMC (Electro Magnetic
Capability) and protection features. It includes an
additional 8-mV comparator and a logical connection
with the frequency doubling stage. This combination can
Features
D Temperature and voltage compensated frequency
D Warning indication of lamp failure by means of
frequency doubling can be disabled
D Voltage dependence of the car indicator lamps
compensated for lamp failure
D Relay output with high current carrying capacity
be used for a hazard switch which bypasses the external
shunt resistor to disable the frequency doubling. This fea-
ture can be useful in the US automotive industry. During
direction mode the U6433B works like other flashers, i.e.,
frequency doubling in the case of lamp outage.
and low saturation voltage
yD Minimum lamp load for flasher operation 1 W
D Load-dump protection
D Very low susceptibility to EMI
D Protection according to ISO/TR 7637/1 level 4
Ordering Information
Extended Type Number
U6433B–FP
Block Diagram
Package
SO8
Remarks
6
C1
4.7 mF
R1 4
82 kW
5
+–K5
G4
G5
+
K1–
VS – 49 mV
+
K4–
VS – 8 mV
G2
VS – 4 V
K2
2 VS
D1
23 V
49 a
PL>1 W
VS–6 V
K3
VS – 8 V
37
8
Shunt
WVS R3
18 m
R2
1.5 kW
Figure 1. Application circuit as a car flasher
1
R4
470 W
94 9289
TELEFUNKEN Semiconductors
Rev. A3, 25-Feb-97
1 (5)
1 page  
U6433B
Ozone Depleting Substances Policy Statement
It is the policy of TEMIC TELEFUNKEN microelectronic 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.
TEMIC TELEFUNKEN microelectronic GmbH semiconductor division 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.
TEMIC 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 TEMIC products for any unintended or unauthorized
application, the buyer shall indemnify TEMIC 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.
TEMIC TELEFUNKEN microelectronic GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany
Telephone: 49 ( 0 ) 7131 67 2831, Fax number: 49 ( 0 ) 7131 67 2423
TELEFUNKEN Semiconductors
Rev. A3, 25-Feb-97
5 (5)
5 Page | ||
| Páginas | Total 5 Páginas | |
| PDF Descargar | [ Datasheet U6433B.PDF ] | |
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