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LM3914 Datasheet(PDF) 11 Page - National Semiconductor (TI) |
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LM3914 Datasheet(HTML) 11 Page - National Semiconductor (TI) |
11 / 22 page Typical Applications (Continued) Expanded Scale Meter, Dot or Bar 00797008 *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 VD of 1.20V. Apply 4.94V to pin 5, and adjust R4 until LED No. 5 just lights. The adjustments are non-interacting. Application Example: Grading 5V Regulators Highest No. LED on Color V OUT(MIN) 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 www.national.com 11 |
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