L7809ACV

Series:	--
Packaging:	Tube
Part Status:	Active
Output Configuration:	Positive
Output Type:	Fixed
Number of Regulators:	1
Voltage - Input (Max):	35V
Voltage - Output (Min/Fixed):	9V
Voltage - Output (Max):	--
Voltage Dropout (Max):	2V @ 1A (Typ)
Current - Output:	1.5A
Current - Quiescent (Iq):	6mA
PSRR:	61dB (120Hz)
Control Features:	--
Protection Features:	Over Temperature, Short Circuit
Operating Temperature:	0°C ~ 125°C
Mounting Type:	Through Hole
Package / Case:	TO-220-3
Supplier Device Package:	TO-220AB
Base Part Number:	L7809A

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L7809ACV application field and working principle

The L7809ACV is a three-terminal positive Voltage regulator with an output voltage of 9 volts. It has a very large range of applications, from digital communications to consumer appliances. It is especially suitable for providing regulated power supply to low power systems such as digital electronics, audio amplifiers and other such applications. In this article, we will discuss the application field of L7809ACV and its working principle in detail.

Application Field of L7809ACV

The L7809ACV is primarily used to provide regulated 9V DC power supply to low power systems. It is capable of delivering up to 800mA of current, making it suitable for powering a wide range of devices such as digital electronics, audio amplifiers, and other low power systems. Other applications of L7809ACV include power supply management and protection circuits, as well as switching power supplies applications.

Advantages of L7809ACV

The L7809ACV offers several advantages over other voltage regulators. It has a wide input voltage range of 5-30V, and is capable of delivering up to 800mA of current. It also features a short-circuit protection, reverse polarity protection and temperature protection, making it a reliable and safe voltage regulator. Moreover, it has a very low associated voltage drop, ensuring that the regulated voltage is as close as possible to the input voltage.

Working Principle of L7809ACV

L7809ACV is a linear voltage regulator. It uses an internal current-limiting and thermal shutdown circuit to achieve an output voltage of 9V. The input voltage is first filtered and regulated to the required level using a voltage divider. The voltage is then adjusted using an internal voltage reference, before the regulator begins to regulate the output. The output is then regulated with a negative feedback loop, which compares the output voltage with the internal reference voltage and adjusts the output voltage accordingly.

Conclusion

The L7809ACV is a three-terminal positive Voltage regulator with an output voltage of 9 volts. It has a wide range of applications, such as digital communications, consumer appliances and switching power supplies. It is capable of delivering up to 800mA of current, and has a wide input voltage range of 5-30V, making it a reliable and safe voltage regulator. In addition, it has a low associated voltage drop, ensuring that the regulated voltage is as close as possible to the input voltage. Finally, it works on a linear voltage regulating principle and is equipped with internal current-limiting and thermal shutdown circuits.

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