What is the maximum supply voltage for a lm555?
The 555 timer can be used with a supply voltage (Vs) in the range 4.5V to 15V (18V is the absolute maximum).
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.
Is 555 timer and op amp?
The functional diagram of a 555 Timer IC consists of two comparators: an Upper Comparator (UC) and a Lower Comparator (LC). If the voltage present at the non-inverting terminal of op-amp is less than or equal to the voltage at its inverting terminal, then the output of comparator will be −Vsat.
Which transistor is used in 555 timer?
Transistors and Inverter The functional diagram of a 555 Timer IC consists of one npn transistor Q1 and one pnp transistor Q2. The npn transistor Q1 will be turned ON if its base to emitter voltage is positive and greater than cut-in voltage.
Why comparators are used in 555 timer?
Recall that a comparator compares the two inputs that are applied to it and produces an output. If the voltage present at the non-inverting terminal of an op-amp is greater than the voltage present at its inverting terminal, then the output of comparator will be +Vsat.
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 electronics use a 555 chip?
Electronics All-in-One For Dummies. The 555 is a single-chip version of a commonly used circuit called a multivibrator, which is useful in a wide variety of electronic circuits. The 555 timer chipis probably the most popular integrated circuit ever made.
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. Astable mode works as a oscillator circuit, in which output oscillate at a particular frequency and generate pulses in rectangular wave form.
What is a 555 integrated circuit?
This integrated circuit is used for timing. Many circuits are composed of timers and the most common of them all is the 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.