Power Integrations

TNY178PG  

AC DC Converters, Offline Switches

TNY178PG Description

The TNY178PG is an offline switch power management integrated circuit (PMIC) designed by Power Integrations, a leading manufacturer in the power management industry. This device is part of the TNY178 family and is housed in a tube package, making it suitable for through mounting-hole. The TNY178PG is designed for applications requiring isolated output and operates within a wide input voltage range of 85V to 265V. It features a flyback topology and is capable of delivering up to 28 watts of power. Despite its robust performance, the TNY178PG is now considered obsolete, but it remains a valuable reference for understanding the evolution of power management solutions.

TNY178PG Features

The TNY178PG boasts several key features that distinguish it from other power management ICs:

• Topology: The flyback topology ensures efficient power conversion and isolation between the primary and secondary sides, making it ideal for applications requiring safety and reliability.
• Voltage Breakdown: With a breakdown voltage of 650V, the T1NY78PG can handle high-voltage inputs, ensuring robustness in various power supply scenarios.
• Internal Switch: The inclusion of an internal switch simplifies the design process and reduces the number of external components required.
• Control Features: The TNY178PG offers an enable (EN) control feature, providing flexibility in managing the power supply.
• Fault Protection: Comprehensive fault protection mechanisms, including current limiting, over-temperature, and over-voltage protection, enhance the reliability and safety of the device.
• Switching Frequency: A switching frequency of 132kHz allows for efficient operation and reduced electromagnetic interference (EMI).
• Duty Cycle: The 65% duty cycle ensures efficient power delivery and minimizes power loss.
• RoHS Compliance: The TNY178PG is RoHS compliant, making it suitable for environmentally applications conscious.
• Moisture Sensitivity Level: With an MSL of 1 (unlimited), the TNY178PG is suitable for a wide range of manufacturing environments.

TNY178PG Applications

The TNY178PG is well-suited for a variety of applications due to its robust design and versatile features:

• Power Supplies: Ideal for offline power supplies in consumer electronics, appliances, and industrial equipment.
• Adapters and Chargers: Suitable for AC-DC adapters and chargers requiring isolated output and high efficiency.
• Medical Equipment: The isolated output and comprehensive fault protection make it suitable for medical devices where safety and reliability are paramount.
• Telecommunications: Can be used in telecom equipment where a wide input voltage range and efficient power conversion are necessary.

Conclusion of TNY178PG

The TNY178PG, despite being obsolete, remains a testament to Power Integrations' commitment to delivering high-performance power management solutions. Its unique features, such as the flyback topology, internal switch, and comprehensive fault protection, make it a reliable choice for applications requiring isolated output and high efficiency. While newer models may offer enhanced performance and additional features, the TNY178PG continues to serve as a valuable reference for engineers and designers in the electronics industry.

TNY178PG Documents

Download datasheets and manufacturer documentation for TNY178PG

Datasheets :

TNY174-180      

PCN Obsolescence/ EOL :

Mult Dev EOL 16/Nov/2021      

PCN Design/Specification :

LNK/TNY/TOP 03/Mar/2022