This is a low current flasher consumes only a few Micro amperes current and lights a high bright LED day and night for more than one year. This can be used in switch boards, key stand etc to locate ...
Yes, for me, it’s nostalgic to think about my favorite LED Driver LM3909 from NSC! This ubiquitous chip is very smart in that it stores up energy in a timing capacitor and then switches it in series ...
An LED is commonly used as a "power on" indicator for many electronic devices. For the LED to produce discernible visible light in daylight, the forward-bias current needs to be in the moderate range ...
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