U6043B-MY Atmel, U6043B-MY Datasheet - Page 5

• Manufacturer Part Number: U6043B-MY
• Description: IC FLASHER 18M OHM SHUNT 8-DIP
• Manufacturer: Atmel
• Type: Automotive, Flasherr

Specifications of U6043B-MY

• Current - Supply: 7mA
• Current - Output: 100µA
• Voltage - Supply: 9 V ~ 15 V
• Operating Temperature: -40°C ~ 95°C
• Package / Case: 8-DIP
• Mounting Style: Through Hole
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Frequency: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

4.7
4726C–AUTO–02/10
Pin 8, Start Input
Comparator K1’s reference voltage is matched to the characteristics of filament lamps (see
“Control Signal Threshold” in the data part).
The combination of shunt resistor and resistance of wire harness prevents pin 7 from a too high
voltage in case of shorted lamps.
Start condition for flashing: the voltage at pin 8 has to be below the K3 threshold (flasher switch
closed).
Humidity and dirt may decrease the resistance between 49 a and GND. If this leakage resis-
tance is > 5 k , the IC is still kept in the off-condition. In this case the voltage at pin 8 is between
the thresholds of comparators K2 and K3.
During the bright phase the voltage at pin 8 is above the K2 threshold, during the dark phase it is
below the K3 threshold. For proper start conditions a minimum lamp wattage of 1W is required.
U6043B
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