LM3914N National Semiconductor, LM3914N Datasheet - Page 11

• Manufacturer Part Number: LM3914N
• Description: IC DOT/BAR GRAPH DISPLAY DRIVER
• Manufacturer: National Semiconductor

Specifications of LM3914N

• Display Type: LED, LCD, Vacuum Fluorescent
• Configuration: Dot/Bar Display
• Digits Or Characters: 10 Steps
• Current - Supply: 6.1mA
• Voltage - Supply: 3 V ~ 20 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Through Hole
• Package / Case: 18-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Interface: -
• Other names: *LM3914N; LM3914

Typical Applications
*This application illustrates that the LED supply needs practically no filtering
Calibration: With a precision meter between pins 4 and 6 adjust R1 for voltage V
The adjustments are non-interacting.
(Continued)
Expanded Scale Meter, Dot or Bar
Highest No.
LED on
10
Grading 5V Regulators
9
8
7
6
5
4
3
2
1
Application Example:
Red
Red
Yellow
Green
Green
Green
Green
Yellow
Red
Red
Color
11
5V
D
of 1.20V. Apply 4.94V to pin 5, and adjust R4 until LED No. 5 just lights.
V
OUT(MIN)
5.54
5.42
5.30
5.18
5.06
4.94
4.82
4.58
4.46
4.7
00797008
www.national.com