Power Integrations

TNY255GN-TL

TNY255GN-TL Description

The TNY255GN-TL from Power Integrations is a highly integrated offline switcher IC designed for flyback topology applications. Part of the TinySwitch® series, this surface-mount device combines a 700V breakdown voltage MOSFET, PWM controller, and protection features into a compact 8-pin SMD package. With a 6.5W power rating and 130kHz switching frequency, it is optimized for low-power, isolated AC/DC conversion. The IC is RoHS compliant and adheres to REACH standards, though it is marked as "Not For New Designs", suggesting legacy or replacement consideration.

TNY255GN-TL Features

• Integrated 700V MOSFET: Eliminates the need for an external switch, reducing BOM cost and board space.
• Advanced Protection: Includes current limiting and over-temperature fault protection for robust operation.
• Control Features: Enable (EN) pin allows precise on/off control, enhancing efficiency in standby modes.
• High Efficiency: 67% duty cycle and fixed-frequency operation minimize losses in flyback designs.
• Compact & Reliable: MSL 4 (72-hour moisture sensitivity) and tape-and-reel packaging suit automated assembly.

TNY255GN-TL Applications

Ideal for space-constrained, low-power AC/DC converters, the TNY255GN-TL excels in:

• Auxiliary Power Supplies: For appliances, IoT devices, and industrial controls.
• LED Drivers: Non-dimmable offline LED power modules.
• Consumer Electronics: Chargers, adapters, and standby power circuits.
• Industrial Systems: Isolated bias supplies for sensors and gate drivers.

Conclusion of TNY255GN-TL

The TNY255GN-TL offers a cost-effective, high-performance solution for offline flyback designs, combining integration, protection, and efficiency. While designated as "Not For New Designs", its proven reliability makes it suitable for legacy or cost-sensitive projects. Engineers should evaluate newer TinySwitch® variants for forward-looking designs but may leverage this IC for maintenance or low-volume production.