Features: ` Temperature and voltage compensated frequency` Warning indication of lamp failure by means of frequency doubling can be disabled` Voltage dependence of the car indicator lamps compensated for lamp failure` Relay output with high current carrying capacityand low saturation voltage` Mini...
U6433B: Features: ` Temperature and voltage compensated frequency` Warning indication of lamp failure by means of frequency doubling can be disabled` Voltage dependence of the car indicator lamps compensate...
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Parameters |
Symbol |
Value |
Unit |
Supply voltage Pins 2 and 6 |
VS |
18 |
V |
Surge forward current tp = 0.1 ms Pins 2 and 6 tp = 300 ms Pins 2 and 6 tP = 300 ms Pin 8 |
IFSM IFSM IFSM |
1.5 1.0 30.0 |
A A mA |
Output current Pin 3 |
IO |
0.3 |
A |
Power dissipation Tamb = 95 SO 8 Tamb = 60 SO 8 |
Ptot Ptot |
340 560 |
mW mW |
Junction temperature |
Tj |
150 |
|
Ambient temperature range |
Tamb |
-40to+105 |
|
Storage temperature range |
Tstg |
-55to+150 |
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.