The following content is an automatically extracted verbatim text
from the original manufacturer datasheet and is provided for reference purposes only.
View original datasheet text
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 be used for a hazard switch which bypasses the external shunt resistor to disable the frequency doubling. This feature 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.