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Low_power_flashers

2017-02-05 13:24  
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Low_power_flashers
This circuit shows two simple flashers that use an LM3909. Figure 12-43B shows the internal circuit. Notice that the LM3909 requires only 1.5 V.However, 6 V is required when the LM3909 must drive a #47 lamp (or any similar load), instead of an LED. The flashing rate is determined by the value of the capacitor between pins 1 and 2. Iffiioo8l Semiconductor Linear Applications Handbook, 1991 p 394