lm3914-mdc National Semiconductor Corporation, lm3914-mdc Datasheet - Page 17

• Manufacturer Part Number: lm3914-mdc
• Description: Dot/bar Display Driver
• Manufacturer: National Semiconductor Corporation

Application Hints
Other Applications
• “Slow” — fade bar or dot display (doubles resolution)
• 20-step meter with single pot brightness control
• 10-step (or multiples) programmer
• Multi-step or “staging” controller
• Combined controller and process deviation meter
• Direction and rate indicator (to add to DVMs)
• Exclamation point display for power saving
Non-Interacting Adjustments for Expanded Scale Meter (4.5V to 5V, Bar or Dot Mode)
(Continued)
Adjusting Linearity of Several Stacked Dividers
17
• Graduations can be added to dot displays. Dimly light
• Electronic “meter-relay” — display could be circle or semi-
• Moving “hole” display — indicator LED is dark, rest of bar
• Drives vacuum-fluorescent and LCDs using added pas-
every other LED using a resistor to ground
circle
lit
sive parts
00797017
00797016
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