This feature is one that allows operation of the whole system from less than 3V. Current drive to the LEDs is regulated and programmable, eliminating the need for resistors. A single pin changes the display from a moving dot to a bar graph. The LM3914 is a monolithic integrated circuit that senses analog voltage levels and drives 10 LEDs, providing a linear analog display. The Internal 10-step Divider is Floating and can be Referenced to a Wide Range of VoltagesĪll trademarks are the property of their respective owners.Outputs can Interface with TTL or CMOS Logic.LED Driver Outputs are Current Regulated, Open-collectors.Input Withstands ☓5V without Damage or False Outputs.No Multiplex Switching or Interaction Between Outputs.Output Current Programmable from 2 mA to 30 mA.Operates with Single Supply of Less than 3V.Internal Voltage Reference from 1.2V to 12V.Bar or Dot Display Mode Externally Selectable by User.Drives LEDs, LCDs or Vacuum Fluorescents.
#ANALOG BAR DRIVERS#
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