What is LM723 IC?
What is LM723 IC?
LM723 IC is a changeable voltage regulator, used in the series regulator application with 150mA current o/p without exterior pass transistor. When we utilize an external transistor, then it supplies 10A current to drive the load. The input voltage supply is maximum 40V & its o/p voltage ranges from 3volts to 40volts.
How does a LM723 work?
LM723 Working Principle An input voltage is applied to the PIN12 of LM723 to get a constant and regulated output voltage at Pin6. This voltage is then fed back by connecting a resistor and a capacitor to the non-inverting pin of the IC. The two voltages at the inverting and non-inverting pin are compared.
What is the pin configuration of IC 723?
It consists of a voltage reference source (Pin 6), an error amplifier with its inverting input on pin 4 and non-inverting input on pin 5, a series pass transistor (pins 10 and 11), and a current limiting transistor on pins 2 and 3.
What is the application of IC 723?
The 723 voltage regulator is commonly used for series voltage regulator applications. It can be used as both positive and negative voltage regulator. It has an ability to provide up to 150 mA of current to the load, but this can be increased more than 10A by using power transistors.
Which connection is used in IC 723 to boost the current?
Due to this reason output terminal pin10 of the IC 723 is upgraded with an external emitter follower transistor Tr1. This allows the IC output to get upgraded to much higher current depending on the rating of the transistor.
What is the output of the IC 7924?
Output Voltage: -24V. Line Regulation: 480mV. Load Regulation: 480mV. Dropout Voltage: 1.1V.
What is the current rating of voltage regulator IC LM317L?
The LM317L is an adjustable 3−terminal positive voltage regulator capable of supplying in excess of 100 mA over an output voltage range of 1.2 V to 37 V.
What is IC 723?
Explanation: The IC 723 is a voltage regulator, which can act as both a low voltage regulator as well as a high voltage regulator. Output can be set between 7-37 volts. 7 volts is the reference starting voltage.
What is the function of IC 7812?
The ic 7812 is a positive voltage regulator which means that it generates the positive voltage with respect to the common ground. In case if both the positive and negative voltage supply is needed in the same circuit. The voltage regulator ic 7812 is combined with its corresponding 79XX family IC that is 7912 IC.
What is IC 723 * 1 point?
1. What is IC 723? Explanation: The IC 723 is a voltage regulator, which can act as both a low voltage regulator as well as a high voltage regulator. Output can be set between 7-37 volts.
What is the disadvantage of IC 723?
Output voltage is not adjustable These limitations can be overcomes in IC723. 2. Adjustable regulated output voltage between 2 to 3V.
What is the dropout voltage in three terminal IC regulator?
Conventional three terminal linear regulators have a 3V dropout, while newer devices feature 1.5V dropout (see Appendix B, “A Low Dropout Regulator Family”) at 7.5A, decreasing to 0.05V at 100μA.
What can a LM723 IC be used for?
LM723 is an adjustable voltage regulator IC used for shunt regulator, current regulator, and temperature controller. It can able to provide a higher range of output voltage and current up to 10A by simply adding a series pass transistor with it, with having a wider range of operating temperature so the IC able to withstand for long.
What is the voltage of the LM723 circuit?
LM723 compares the voltage of the non-inverting pin with a voltage of inverting pin and provides output voltage/current according to the above formula. This example circuit provides variable output in the range of 2.6-24V. It can provide 1 Ampere output load current.
How does the LM723 IC pinout help reduce noise?
This terminal is directly supplied from the supply when not connected to series pass transistor This terminal helps in reducing noise, by adding a capacitor of 100pf with it Excessive output current of 150mA without external pass transistor. Better Input supply voltage of maximum 40v. Provide adjustable output from 3v to 37v.
How to find resistance R3 for LM723 IC?
For getting an output voltage range from 2v to 7v you can use the circuit below, which is a Basic Voltage Regulator circuit using LM723 voltage regulator IC. To find the value of resistance R3 you can use the formula below: