UA7808CKTER Integrated Circuits (ICs)

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UA7808CKTER Application Field and Working Principle

The UA7808CKTER is a low dropout regulator voltage of 8V, which is designed to provide an operating temperature from 0°C up to 125°C. This device is typically employed in medium or high power applications or in applications with high temperature requirements. It has a high power dissipation, which makes it suitable for applications that require a significant amount of energy. This low dropout regulator offers a wide range of current and voltage regulation. It is also capable of delivering stable performance under extreme temperature conditions.

This device is a three-phase linear regulator which helps to regulate output voltage and current. UA7808CKTER comprises of three functional parts – power, linear and compensation. Power part consists of the input supply, output stage, and the power supply FETs. The linear part consists of the amplifier and voltage divider, whose role is to achieve an optimal linear response from the system. The compensation part, which is typically implemented using an external resistor or capacitor, provides the necessary negative feedback for precise regulation.

The device allows a wide range of control settings for output voltage, current, and power. It can be used to adjust the output voltage from 12V to 24V and output current from 0.5A to 7A. It also offers protection against over-voltage, under-voltage and over-temperature. The output voltage is controlled by adjusting the external voltage divider. The output current is controlled by adjusting the external compensation resistor.

In order to protect the device from extreme temperature conditions, the device includes an internal thermal shutdown circuit. The thermal shutdown is activated when the junction temperature reaches its predetermined threshold. This protection prevents damage to the device due to excessive temperatures. The power supply FETs also protect the device from excessive power dissipation.

The UA7808CKTER is used in a wide variety of applications, such as automotive, industrial, and consumer electronics. It is especially suitable for applications that require a high power dissipation and wide range of current and voltage control. The device is able to operate in temperatures from -40°C to 125°C and it is stable in a wide range of frequencies from DC to 4kHz.

In conclusion, UA7808CKTER is a versatile linear voltage regulator that offers high power dissipation, wide range of voltage and current regulation, and is suitable for applications that require an extreme temperature range. This device is easy to design-in and is suitable for a wide variety of applications.

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