KA7815E

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KA7815E Application field and Working Principle

The KA7815E is an integrated fixed positive voltage regulator specifically designed for applications of medium power supplies, developed by Fairchild Semiconductor. This voltage regulator integrates all the components required for its operation into a single package which eliminates the need for external components. It provides up to 1.5Amps of output current and has a wide adjustment range. It also has various features that make it well suited for power management applications.

Features

The KA7815E features many features that are useful in power management applications. It offers a high output current of up to 1.5 Amps. It also has a wide operating temperature range from -40°C to 125°C, which makes it well suited for extreme applications. In addition, it has a wide input voltage range of 4.5V to 28V, making it ideal for use in applications that require a wide variety of input voltage levels. The device also includes an over-temperature protection and a brown-out protection to ensure the safety of your system.

Furthermore, it includes an adjustable output voltage of between 1.2V to 37V. This voltage regulator is also able to provide up to 1.5 Amps of transient current. It also includes an efficient current limiter and a low quiescent current of 10uA, making it an ideal choice for Low-Power Systems.

Applications

The KA7815E is well suited for a variety of applications, including automotive, consumer electronic, industrial, medical, and telecom applications. It is particularly useful for stable power supply applications for any kind of electronic device such as radios, portable digital devices, computers, and PDA’s. It is also suitable for use in high efficiency or energy-saving projects due to its low quiescent current. In addition, due to its adjustable output voltage feature, this device makes it suitable for use in applications in which voltage levels must be adjusted.

Working Principle

The KA7815E is an integrated fixed positive voltage regulator that operates on the principle of feedback control. It uses an internal high-gain voltage amplifier to compare an internal reference voltage to the output voltage. A low-resistance current paths are used to ensure the regulation of the output voltage. During the operation of the device, the internal reference voltage is compared with the output voltage and is adjusted accordingly, thereby regulating the output voltage.

The KA7815E has a wide operating voltage range of 4.5V to 28V and is able to provide up to 1.5 Amps of output current. The device and its internal circuits are protected from over-temperature and overload conditions by the integrated thermal protection and current limit circuits. It also features an adjustable output voltage of between 1.2V to 37V, making it ideal for use in applications that require voltage adjustment.

Conclusion

The KA7815E is an integrated fixed positive voltage regulator specifically designed for medium power applications. It offers a high output current of up to 1.5 Amps and a wide input voltage range of 4.5V to 28V. Its adjustable output voltage feature is also a great addition, as it makes it suitable for applications which require voltage adjustment. In addition, the device has integrated thermal protection and current limit circuits, making it a safe and reliable choice for power management applications.

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