LM3915 Logarithmic Dot/Bar LED Display Driver IC DIP-18
Prices updated: 12 Oct 2026
Compare prices
| Store | product | Price | View in store |
|---|---|---|---|
 Makers Electronics | LM3915 Logarithmic Dot/Bar Display Driver IC DIP 18-pin | 35 EGP | View in store |
Price history
Lowest daily price, last 90 days
Not enough price history yet.
Lowest price recorded: 35 EGP
About this product
The LM3915 is a logarithmic display driver IC that drives a 10-LED dot or bar graph. Each LED step represents a 3 dB change in the input signal, which suits audio level meters, signal strength indicators and battery monitors. It comes in an 18-pin DIP package.
Specifications
- Outputs
- 10 LED drivers
- Scale
- Logarithmic, 3 dB per step
- Display mode
- Dot or bar (selected by pin 9)
- Internal reference
- 1.25 V
- Supply voltage
- 3 V to 25 V
- Package
- DIP-18
Frequently asked questions
What is the price of LM3915 Logarithmic Dot/Bar LED Display Driver IC DIP-18 in Egypt?
LM3915 Logarithmic Dot/Bar LED Display Driver IC DIP-18 currently costs 35 EGP in Egypt.
Where can I buy LM3915 Logarithmic Dot/Bar LED Display Driver IC DIP-18 in Egypt?
LM3915 Logarithmic Dot/Bar LED Display Driver IC DIP-18 is available from Makers Electronics. Compare the offers above to find the best price.
How do I switch between dot mode and bar mode?
Leave pin 9 floating for dot mode, where only one LED lights at a time. Connect pin 9 to V+ for bar mode, where all LEDs up to the signal level light up.
How do I set the LED current?
The LED current is set by a resistor connected from pin 7 to V+. Choose its value using the formula in the LM3915 datasheet for your desired LED current, and do not exceed the LED's rated current.
