Typical Application for LM3914 Bar Display Driver, Adding Hysteresis (Single Supply, Bar Mode Only)
參考設計 屬於: Texas Instruments
Typical Application for the LM3914 Dot/Bar Display Driver, Adding Hysteresis (Single Supply, Bar Mode Only). The LM3914 is a monolithic integrated circuit that senses analog voltage levels and drives 10 LEDs, providing a linear analog display. A single pin changes the display from a moving dot to a bar graph. Current drive to the LEDs is regulated and programmable, eliminating the need for resistors. This feature is one that allows operation of the whole system from less than 3V