BA17805FP-E2

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BA17805FP-E2 Application Field and Working Principle

BA17805FP-E2 is a linear voltage regulator developed by Panasonic Corporation of Japan. It is widely used in a variety of application fields to provide constant voltage and current for electronic equipment.

Overview

This regulator is provided with a wide range of input options, operating at 4.5 to 18 volts at a maximum output of 5.5V and is capable of supplying an output current of 8.3A with a good ripple rejection rate of 70 dB. It also features ultra-low dropout voltage, low noise and fast transient response. This regulator also offers over current protection and over temperature protection, enabling users to avoid unnecessary damage caused by over-output current.

Application Fields

BA17805FP-E2 can be used in a variety of application fields, such as automotive electronics, white goods, portable electronics, and industrial control systems. This regulator is especially suitable for application fields that require high accuracy and high ripple rejection rates. It can also be used for automobile battery charge systems, industrial equipments, GPS, communications products and more.

Working Principle

BA17805FP-E2 is an internally compensated linear voltage regulator. Its basic working principle is simple: it regulates the output voltage by adjust the internal circuit elements. It is composed of a series of transistors and capacitors, voltage detectors, voltage references, and PWM controllers, which can accurately adjust the voltage, current and output power of the output. The regulator has an accuracy of better than 1% and can regulate output voltage with minimal load variation.

Power Supply

The regulator is capable of providing a continuous output current of 8.3A. The input voltage can range from 4.5 to 18 volts. It is capable of accepting an input voltage of up to 18V, which makes it suitable for industrial applications. The regulator features ultra-low dropout voltage and can provide precise voltage and current regulation even at low input voltages.

Voltage Regulation

The regulator can precisely regulate the output voltage, allowing users to set the required voltage with accuracy down to 0.25 percent. The output voltage can be adjusted in four steps, allowing users to find the desired voltage setting quickly and easily. The maximum output voltage is 5.5V and the minimum output voltage is 2.5V. The regulator is capable of rejecting input voltage fluctuations of up to 70dB, giving it the ability to provide high accuracy in noisy environments.

Current Limitation

The regulator is capable of limiting the current flow, to protect the connected device from high current. It is capable of limiting the output current by reducing the gain of the output voltage, thus preventing the output voltage from rising. This also prevents over-current protection and over-temperature protection, enabling users to safely use the regulator in harsh environments.

Output Ripple Rejection

The regulator is capable of rejecting power supply ripple and noise, with a ripple rejection rate of up to 70dB. This ensures that the output voltage remains clean and stable, eliminating unwanted voltage fluctuations. In addition, the regulator has a fast transient response time, which enables it to quickly respond to output voltage changes.

Conclusion

BA17805FP-E2 is a linear voltage regulator designed by Panasonic Corporation of Japan. It is widely used in a variety of application fields and offers excellent performance, with a wide range of input voltages, a high output current, and ultra-low dropout voltage. It also boasts high accuracy, fast transient response, and excellent ripple rejection. With over current protection and over temperature protection, it is an excellent choice for harsh environments. All in all, BA17805FP-E2 is a powerful, cost-effective and reliable solution for high-end voltage regulation applications.

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