TL780-15CKC

TL780-15CKC Application Field and Working Principle

The TL780-15CKC is a three-terminal Linear Positive Fixed-Voltage Regulator designed to provide a regulated output voltage of 15 volts. It features an over-current protection circuit and variable current-limiting circuit, as well as excellent ripple and noise characteristics. It is ideal for applications where precise output regulation with excellent temperature stability is required.

Overview of the TL780-15CKC

The TL780-15CKC is a linear voltage regulator that can supply up to 1.5 A. It is specifically designed for applications requiring a precise voltage output with excellent temperature stability, low noise, and low output voltage ripple. It can also provide substantial input-to-output isolation. The output voltage of the regulator is fixed at 15 volts and is adjustable over a wide range of input voltages, making it suitable for use in a variety of applications.

The TL780-15CKC has an on-chip protection circuit that limits the current if it exceeds the pre-set safe limit, to protect the circuit from possible damage. It also features an adjustable current-limit circuit that limits the current to the desired maximum level, allowing the circuit to be operated with very high currents without damaging the circuit. The current limit can be adjusted to optimize performance and battery life.

Applications of the TL780-15CKC

The TL780-15CKC is suitable for a variety of applications, such as powering a wide range of electronic equipment, including dedicated circuits, embedded systems, AC-DC power converters, and general-purpose power supplies. Its excellent output regulation characteristics make it ideal for a range of low-noise, low-ripple, voltage-regulated equipment, such as telecommunications systems, portable medical equipment, industrial controllers, DVD players, and LCD TVs.

The TL780-15CKC is also well suited for use in automotive applications where reliable operation over a wide range of temperatures is required, such as motors, battery chargers, and lighting. Its low-noise, low-ripple output makes it suitable for use in a range of applications, including data acquisition systems, professional audio equipment, and test and measurement systems.

Working Principle of the TL780-15CKC

The TL780-15CKC is a fixed output voltage regulator, with a fixed output of 15 volts. The voltage regulator consists of three main components: an input voltage regulator, an error amplifier, and an output stage. The input voltage regulator monitors the input voltage, and the error amplifier amplifies any difference between the input voltage and the set output voltage. The output stage controls the output voltage by adjusting the current flowing through the pass transistor to regulate the output voltage.

The TL780-15CKC also features over-current protection, which is designed to protect the circuit from possible damage due to an over-current event. The protection circuit senses the current across the pass transistor and shuts down the output when the current exceeds the set safe limit. The over-current protection threshold is adjustable, allowing the regulator to be used with higher current loads, while still providing protection.

The TL780-15CKC also features an adjustable current-limit circuit. This circuit limits the output current to a set maximum level, allowing the circuit to be run with high currents without damaging the circuit. The current-limit adjustment is done using a trimmer potentiometer, allowing for precise adjustment.

Conclusion

The TL780-15CKC is a three-terminal linear positive fixed-voltage regulator designed to provide a regulated output voltage of 15 volts. It features over-current protection, variable current-limiting, excellent ripple and noise characteristics, and is ideal for applications requiring precise output regulation with excellent temperature stability. It is well-suited for use in a wide range of low-noise, low-ripple, voltage-regulated equipment, and automotive applications.