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moto direction indicator
LD1204 Motorbike Direction Indicator Driver IC VN1160
LD1204 is a driver ASIC that used in automotive and motorcycle direction indicator lamp unit. The IC hasa frequencyconversion function, when the load current is less than the internal set threshold, the flasher frequency doubling. At thesame time it has multiple protection functions, such as over-current protection, over-temperature protection, high-voltageclamp, under-voltage protection and battery reverse protection, to ensure that in different circumstances the normalfunctions of the chip. Chip peripheral circuit is simple, just a external capacitor (220uF,10V ) that connected with the CEXTpin and OUT pin, while Vcc pin is connected to the positive terminal of the battery, the OUT pin connected to a switch (which set between the OUT pin of chip and the direction indicator lamp ). When the switch turn on, chip generates a dutyratio of about 50% for the direction indicator control signal.
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