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Ten-step linear LED display driver

LM3914 Basic Circuit

Build a basic LM3914 circuit with labeled pins, component values and connection guidance.

Package view

LM3914 in a circuit

Physical DIP circuit with current-programmed LEDs.

LM3914N-1 with18pins,5Vsupply,2.49kcurrentresistor,REFOUTrange,tenLEDSandlocalbypass.
DIP pin labels shown. Change to the PLCC pin map for SMD assembly.

Connect it, step by step

Follow the component values and pin connections

Reference

REFADJ and RLO to GND; join RHI and REFOUT.

Program

Place2.49kΩ from REFOUT toGND; account for ladder load.

Indicate

MODE to5V forbar; ten LED anodes to5V and cathodes to their sinks.

Component view