LM3914
www.ti.com SNVS761B – JANUARY 2000 – REVISED MARCH 2013 LM3914 Dot/Bar Display Driver
Check for Samples: LM3914 FEATURES 1 2 Drives LEDs, LCDs or Vacuum Fluorescents
Bar or Dot Display Mode Externally Selectable
by User
Expandable to Displays of 100 Steps
Internal Voltage Reference from 1.2V to 12V
Operates with Single Supply of Less than 3V
Inputs Operate Down to Ground
Output Current Programmable from 2 mA to 30
mA
No Multiplex Switching or Interaction Between
Outputs
Input Withstands В±35V without Damage or
False Outputs
LED Driver Outputs are Current Regulated,
Open-collectors
Outputs can Interface with TTL or CMOS Logic
The Internal 10-step Divider is Floating and
can be Referenced to a Wide Range of
Voltages DESCRIPTION
The LM3914 is a monolithic integrated circuit that
senses analog voltage levels and drives 10 LEDs, …
