Power Integrations

TNY253G-TL

TNY253G-TL Description

The TNY253G-TL is an offline switch flyback power management IC designed by Power Integrations. This device is part of the renowned TinySwitch® series and is optimized for delivering up to 2 watts of power. It features a surface-mount package, making it suitable for compact and space-constrained applications. The TNY253G-TL operates with a breakdown voltage of 700V, ensuring robustness in high-voltage environments. Its switching frequency is set at 44kHz, which balances efficiency and electromagnetic interference (EMI) considerations.

This IC is equipped with an internal switch, simplifying the design process and reducing the number of external components required. The device also includes essential control features such as an enable (EN) pin, allowing for precise control over the power delivery. Fault protection mechanisms like current limiting and over-temperature protection ensure reliable operation under various conditions.

The TNY253G-TL is packaged in a tape and reel format, facilitating automated assembly processes. It is classified under the ECCN code EAR99 and complies with REACH regulations, ensuring it is unaffected by the REACH status. The device is rated for a duty cycle of 68%, which is optimal for maintaining efficiency and thermal performance. The moisture sensitivity level (MSL) is rated at 4 (72 hours), making it suitable for standard manufacturing processes.

TNY253G-TL Features

• Topology: Flyback
• Mounting Type: Surface Mount
• Voltage - Breakdown: 700V
• Power (Watts): 2 W
• Internal Switch(s): Yes
• Control Features: EN (Enable)
• Fault Protection: Current Limiting, Over Temperature
• Frequency - Switching: 44kHz
• Package: Tape & Reel (TR)
• Output Isolation: Isolated
• Moisture Sensitivity Level (MSL): 4 (72 Hours)

The TNY253G-TL stands out due to its integrated switch, which reduces the complexity and cost of the power supply design. The flyback topology ensures efficient power conversion with minimal component count. The enable control feature provides flexibility in managing the power state, making it suitable for applications requiring dynamic power management.

TNY253G-TL Applications

The TNY253G-TL is ideal for a variety of applications where compact size, high efficiency, and reliability are critical. These applications include:

• Consumer Electronics: Small form-factor power supplies for devices such as smartphones, tablets, and other portable electronics.
• Industrial Equipment: Power supplies for sensors, actuators, and other low-power industrial devices.
• Medical Devices: Power management in medical equipment where high reliability and isolation are required.
• Telecommunications: Power supplies for remote communication devices and small base stations.

The device's 700V breakdown voltage and isolated output make it suitable for applications where safety and robustness against voltage spikes are essential. The current limiting and over-temperature protection features further enhance its reliability in demanding environments.

Conclusion of TNY253G-TL

The TNY253G-TL is a versatile and reliable offline switch flyback power management IC that offers a balance of high performance and compact design. Its integrated switch, efficient flyback topology, and comprehensive fault protection make it an excellent choice for a wide range of applications. Despite being marked as obsolete, the TNY253G-TL remains a valuable component for designers seeking a proven solution for low-power, high-efficiency power supplies. Its compliance with industry standards and regulations ensures it meets the requirements of modern electronics manufacturing.