AS7815AT-G1

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What Is AS7815AT-G1?

AS7815AT-G1 is an integrated voltage regulator from Diodes Incorporated, designed to provide digital and analog circuitry with a regulated supply. It is part of the Linear Voltage Regulator family, and provides a variety of features and good performance characteristics.

Application Field of AS7815AT-G1

AS7815AT-G1 is ideal for applications that require stable, low-noise output. It is suitable for use in consumer, industrial, and automotive electronics, including e-meters, medical electronics, home and office appliances, set-top boxes, cellular phone base stations, and automotive infotainment systems.

This voltage regulator is capable of supplying up to 1 A of output current and is protected from output short circuits. Its operation is temperature compensated and temperature range is from -40 to +125 Celsius. It is also designed for use in low voltage, high current points of stresses, such as consumer PCs, networking equipment, and aerospace applications.

Working Principle of AS7815AT-G1

At the heart of the AS7815AT-G1 lies a linear regulator. The regulator is designed to maintain a stable output voltage, regardless of input voltage and load fluctuations. The control loop is made up of an error amplifier and a series of resistive and capacitive elements that control the output voltage. The error amplifier monitors the output voltage, compares it to an internal reference voltage and adjusts the output voltage accordingly.

The error amplifier also acts as a comparator, detecting when the output voltage is above or below its reference. When the output voltage exceeds the reference, the error amplifier pulls the control pin up, increasing the amplitude of the output voltage and bringing it back down to the reference. When the output voltage is below the reference, the error amplifier pulls the control pin down, lowering the voltage and bringing it back up to the reference.

In addition, AS7815AT-G1 offers protection from over-voltage and short circuit protection, thermal shutdown and overtemperature protection. The integrated thermal shutdown circuitry disables the device when its junction temperature exceeds a certain limit. This helps protect the device from damage due to overheating.

Conclusion

The AS7815AT-G1 is a device that is ideal for applications requiring a stable low-noise voltage. It is designed to maintain a stable output voltage, regardless of input voltage and load fluctuations, and provides protection from over-voltage and short circuits. With its ability to supply up to 1 A of output current, the AS7815AT-G1 is suitable for consumer, industrial, and automotive electronics.

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