Texas Instruments

UCC28083P

UCC28083P Description

The UCC28083P is an offline switch IC designed for push-pull applications, manufactured by Texas Instruments. This through-hole mounted device is housed in a tube package and is ideal for AC-DC converters and offline switches. Despite being marked as obsolete, the UCC28083P remains a robust choice for specific applications due to its unique set of features and performance capabilities.

UCC28083P Features

The UCC28083P offers a range of technical specifications that make it suitable for various power conversion applications. Key features include:

• Frequency Control: The IC provides frequency control, allowing for precise regulation of the switching frequency within the range of 50kHz to 1MHz. This wide range ensures flexibility in designing power supplies with varying output requirements.
• Current Limiting: The device incorporates current limiting as a fault protection mechanism, safeguarding the circuit against overcurrent conditions and ensuring reliable operation.
• Isolated Output: The UCC28083P features isolated output, which is crucial for applications requiring electrical isolation between the input and output stages to ensure safety and prevent noise coupling.
• Wide Supply Voltage Range: With a supply voltage range of 8.3V to 15V, the IC can operate efficiently across a broad spectrum of input voltages, making it versatile for different power supply designs.
• Low Start-Up Voltage: The IC has a low start-up voltage of 12.5V, enabling quick and efficient initialization of the power supply system.
• High Duty Cycle: The UCC28083P supports a high duty cycle of up to 49%, which is beneficial for maximizing power transfer efficiency in push-pull configurations.
• Compliance and Safety: The device is REACH unaffected and RoHS3 compliant, ensuring it meets the latest environmental and safety standards. Additionally, it has a moisture sensitivity level (MSL) of 1, indicating it is not sensitive to moisture, which is advantageous for manufacturing processes.

UCC28083P Applications

The UCC28083P is particularly well-suited for applications that require efficient power conversion with isolated outputs. Some specific use cases include:

• Power Supplies: Ideal for designing isolated power supplies for various electronic devices, including those in the consumer, industrial, and medical sectors.
• Adapters and Chargers: Suitable for creating efficient adapters and chargers that require a compact and reliable solution.
• Telecommunications: Can be used in telecom equipment where isolated power supplies are necessary to ensure signal integrity and safety.
• Renewable Energy Systems: Useful in small-scale renewable energy applications, such as solar inverters, where isolated power conversion is essential.

Conclusion of UCC28083P

The UCC28083P, despite being obsolete, remains a valuable component for specific power conversion applications. Its wide frequency control range, current limiting feature, and isolated output make it a reliable choice for designing efficient and safe power supplies. The device's compliance with environmental and safety standards further enhances its appeal. For applications requiring a robust and versatile offline switch, the UCC28083P is an excellent option to consider.