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LM3915芯片资料
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2010-08-30
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The LM3915 is a monolithic integrated circuit that senses
analog voltage levels and drives ten LEDs, LCDs or vacuum
fluorescent displays, providing a logarithmic 3 dB/step analog
display. One pin changes the display from a bar graph to
a moving dot display. LED current drive is regulated and
programmable, eliminating the need for current limiting resistors.
The whole display system can operate from a single
supply as low as 3V or as high as 25V.
analog voltage levels and drives ten LEDs, LCDs or vacuum
fluorescent displays, providing a logarithmic 3 dB/step analog
display. One pin changes the display from a bar graph to
a moving dot display. LED current drive is regulated and
programmable, eliminating the need for current limiting resistors.
The whole display system can operate from a single
supply as low as 3V or as high as 25V.
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