Datasheet

LM3914
www.ti.com SNVS761B –JANUARY 2000–REVISED MARCH 2013
*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
D
of 1.20V. Apply 4.94V to pin 5,
and adjust R4 until LED No. 5 just lights. The adjustments are non-interacting.
Figure 17. Expanded Scale Meter, Dot or Bar
Table 1. Application Example: Grading 5V Regulators
Highest No.
Color V
OUT(MIN)
LED on
10 Red 5.54
9 Red 5.42
8 Yellow 5.30
7 Green 5.18
6 Green 5.06
5V
5 Green 4.94
4 Green 4.82
3 Yellow 4.7
2 Red 4.58
1 Red 4.46
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