What is the use of control voltage in 555 timer?

Control: Pin 5 is the control pin. In most 555 circuits, this pin is simply connected to ground, usually through a small 0.01 μF capacitor. (The purpose of the capacitor is to level out any fluctuations in the supply voltage that might affect the operation of the timer.)

What is the output voltage of a 555 timer?

The standard TTL 555 can operate from a supply voltage between 4.5 volts and 18 volts, with its output voltage approximately 2 volts lower than its supply voltage VCC. The 555 can source or sink a maximum output current of 200mA, (but it may get hot at this level), so the circuit variations are unlimited.

What controls the frequency of a 555 timer?

An Astable 555 Oscillator is constructed using the following components, R1 = 1kΩ, R2 = 2kΩ and capacitor C = 10uF. If resistor, R2 is very large relative to resistor R1 the output frequency of the 555 astable circuit will determined by R2 x C only.

What is the function of pin 3 in 555 timer?

Pin 3. It is the output pin. When the IC triggers via pin 2, the output pin goes high depending on the duration of the timing cycle. It can either sink or source current which is at maximum 200mA.

How accurate is a 555 timer?

For less than 1% accuracy, the 555 timer is an ideal choice. For an accuracy better than 0.1%, consider digital or crystal techniques. Occasionally the 555 will suffer from jitter problems on its output if the supply- voltage variations are rapid with respect to the timing cycle.

What is the frequency range of a 555 timer?

What is the function of pin 4 in 555 timer?

Pin 4: Reset Terminal: Whenever the timer IC is to be reset or disabled, a negative pulse is applied to pin 4, and thus is named as reset terminal. The output is reset irrespective of the input condition.

What does each pin do on a 555 timer?

The 555 timer IC consist of 8-pins where each pin has some function. The pin configuration of this IC is shown below. Pin-1 is a GND pin which is used to supply a zero voltage to the IC. Pin-2 is a trigger pin which is used to convert the FF from set to RST (reset).

What do you know about 555 timer?

The 555 timer IC is a very cheap, popular and useful precision timing device which can act as either a simple timer to generate single pulses or long time delays, or as a relaxation oscillator producing a string of stabilised waveforms of varying duty cycles from 50 to 100%.

What are the applications of 555 timer?

The 555 timer IC is an integrated circuit (chip) used in a variety of timer, pulse generation, and oscillator applications. The 555 can be used to provide time delays, as an oscillator, and as a flip-flop element.

What is the frequency of a 555 timer?

The Max frequency range of the 555 timer IC in astable mode is from 500-kHz to 2-MHz. Astable Multivibrator mode of 555 timer IC is also called Free running or self-triggering mode.

What is a 555 integrated circuit?

The 555 integrated circuit ( IC ) is a chip that is used in many school projects and commercially made items such as video recorders and timers. You must understand the basic workings of this important IC. The 555 has eight pins (legs) but the function of two are very important. These are pin two and three.