BA7809CP-E2 Integrated Circuits (ICs)

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

NXP Semiconductors\' BA7809CP-E2 is a 3-terminal adjustable linear regulator, with a wide input voltage (max 36V) and output voltage adjustable range of 1.25 ~ 30V. This device is unfortunately not available in a surface mount package; however, it is packaged in a power SOT223-5L format, which makes it an ideal component for precision power supply designs.

Features of BA7809CP-E2

• Wide input voltage range: 2.8V to 36V
• Output voltage adjustable range: 1.25V to 30V
• Low quiescent current: 3mA
• High peak output current capability: 7A
• Typical line regulation: 0.02%/V
• Typical load regulation: 0.01%
• High power dissipation capability
• Stable with low output capacitance
• Overtemperature and overcurrent protection
• RoHS compliant

Applications of BA7809CP-E2

The BA7809CP-E2 is suitable for a variety of DC/DC applications, including industrial, consumer and portable. Some of its key applications are described here:

• Battery-powered systems
• Chargers
• Embedded systems
• Programmable logic controllers (PLCs)
• Cordless power tools
• Industrial motor control
• DC/DC converters
• Smartphones and tablets
• Satellite and navigation systems
• ATMs and vending machines

Working Principle of BA7809CP-E2

The BA7809CP-E2 is a three-terminal adjustable linear regulator, which provides a regulated output voltage from 1.25V to 30V by adjusting the voltage at the adjust pin. The output voltage is controlled by the voltage at the adjust pin, which is compared to the reference voltage from the zener diode. If the voltage at the adjust pin is higher than the reference voltage, the output voltage is regulated to the adjustable set point. The output voltage is then clamped by the two transistors connected in series, which form an error amplifier. This error amplifier is the heart of the voltage regulator and is responsible for maintaining the output voltage independent of load changes, line variations, temperature and any other variation.

The output current from the adjustment pin is regulated by an internal FET. A temperature-compensated hysteretic current-control circuit keeps the internal FET in continuous conduction and regulates the output current. This current-regulating circuit also includes a limiter, which protects the device from short circuits, overloads, and other unexpected conditions.

Conclusion

The BA7809CP-E2 is a versatile 3-terminal adjustable linear regulator that offers a wide input voltage range, low quiescent current, and precision output voltage adjustment. It is an ideal choice for a variety of industrial and consumer applications, where precise power supply is needed. Its features, along with its rugged construction, make it a dependable choice for power supply design.

The specific data is subject to PDF, and the above content is for reference