UA7812CKC

The UA7812CKC is a voltage regulator manufactured by Texas Instruments, designed to provide a stable output voltage of 12 volts. It is part of the 78xx series of linear voltage regulators, which are widely used in various electronic applications for power supply regulation.

Key Features:

1. Output Voltage: The UA7812CKC delivers a fixed output voltage of 12V, making it suitable for powering devices that require a stable voltage supply.

2. Input Voltage Range: The device can accept a wide range of input voltages, typically from 14V to 35V, allowing it to be used in various applications where the input voltage may vary.

3. Current Output: It can provide a maximum output current of up to 1.5A, which is sufficient for many low to moderate power applications.

4. Thermal Protection: The UA7812CKC includes built-in thermal overload protection, which helps prevent damage to the device and the circuit in case of overheating.

5. Short-Circuit Protection: This regulator also features short-circuit protection, ensuring that it can withstand accidental short circuits without failing.

6. Package Type: The UA7812CKC is typically available in a TO-220 package, which is a metal can with three leads. This package design allows for efficient heat dissipation, making it suitable for applications where heat management is critical.

7. Pin Configuration: The pin configuration usually consists of three pins: Input (Vin), Ground (GND), and Output (Vout). The layout is designed for easy integration into circuit boards.

8. Low Dropout Voltage: While it is a linear regulator, the UA7812CKC has a relatively low dropout voltage, which means it can maintain regulation even when the input voltage is close to the output voltage.

9. Applications: Common applications include power supplies for microcontrollers, sensors, and other electronic devices that require a stable 12V supply. It is also used in audio equipment, communication devices, and various consumer electronics.

Performance Characteristics:

• Line Regulation: The UA7812CKC exhibits good line regulation, meaning that variations in the input voltage have minimal effect on the output voltage.
• Load Regulation: It also provides stable output voltage under varying load conditions, ensuring consistent performance across different operating scenarios.
• Temperature Range: The device operates effectively over a wide temperature range, typically from -40°C to +125°C, making it suitable for both commercial and industrial applications.

Conclusion:

The UA7812CKC from Texas Instruments is a reliable and efficient voltage regulator that is widely used in electronic circuits requiring a stable 12V output. Its robust features, including thermal and short-circuit protection, along with its ease of use, make it a popular choice among engineers and hobbyists alike.