Lm3914n Pinout. The lm3914 is an analog controlled led driver ic meaning it can control turn on or off 10 led lights based on an analog input voltage. The lm3914n 1 is available in an 18 lead pdip nfk package.
The pinout of the lm3914 is shown below. The ic provides a decimal output by lighting the necessary led based on the value of input voltage. 2 solder the ve terminal of the 3v piezo buzzer with pin 10 of the ic.
The following typical application illustrates adjusting of the reference to a desired value and proper grounding for accurate operation and avoiding oscillations.
The lm3914n 1 is available in an 18 lead pdip nfk package. And then we connect pin 2 v to ground. Functional description the simplified lm3914 block diagram is to give the general idea of the circuit s operation. Inidicating devices likes leds lcd or vaccum displays can be attached with these outputs to obtain a corresponding visual indication in response to the varying input analogue signal.
