LM7905CT Integrated Circuits (ICs)

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LM7905CT is an efficient negative linear voltage regulator, which is widely used in various fields as an effective and reliable power supply system. This article provides an overview of the application field and working principle of LM7905CT.

Application fields of LM7905CT

The LM7905CT is a negative voltage regulator with adjustable output voltage. It can be used in a wide range of applications, including security systems, power supply systems, automotive, aerospace and medical equipment, and industrial control systems. In addition, its wide range of operating temperature makes it especially suitable for industrial and telecommunications applications.

The regulator is also suitable for low-power circuits, such as cellular telephones, notebooks, and battery-powered instruments. It is also capable of providing high reliability, low power dissipation and minimum noise. Therefore, it is widely used in the regulated power supply system.

Working Principle of LM7905CT

The LM7905CT consists of two voltage reference elements, a current source, a precision voltage comparator, and an adjustable voltage source. The input is applied to the reference elements, which results in a stable reference voltage across the output. This reference voltage is then compared to the input voltage by the comparator, which then adjusts the output voltage to produce a regulated negative voltage.

The output of the LM7905CT is determined by the feedback circuit. The current source is used to control the voltage of the adjustable voltage source. When the voltage of the adjustable voltage source is greater than the reference voltage, the current source reduces its current, thereby reducing the output voltage. This process is known as the negative feedback loop. The output voltage is then maintained at a constant level with changes in the input voltage.

The LM7905CT is also equipped with various protective features, such as short circuit protection, thermal shut-down, and over-voltage protection. These features help to protect the device from any unexpected voltage spikes and ensure safe and reliable operation.

Conclusion

In conclusion, LM7905CT is a widely used and high performance negative linear voltage regulator. It can be used in a wide range of applications and features an adjustable output voltage and various protective features. The device is also equipped with a negative feedback loop, which helps to maintain the output voltage at a constant level with changes in the input voltage.

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