Power Integrations

TNY254GN

TNY254GN Description

The TNY254GN from Power Integrations is a highly integrated offline switcher IC designed for flyback topology applications, offering efficient power conversion up to 4W. Part of the TinySwitch® series, it combines a 700V breakdown voltage MOSFET, PWM controller, and protection features in a compact 8-pin surface-mount package. With a 44kHz switching frequency and 68% duty cycle, it ensures stable performance in isolated power supplies. The device is RoHS compliant, REACH unaffected, and rated for MSL 4 (72 hours), making it suitable for environmentally conscious and high-reliability designs.

TNY254GN Features

• Integrated 700V MOSFET: Eliminates the need for an external switch, reducing BOM cost and PCB space.
• Advanced Protection: Includes current limiting and over-temperature fault protection for robust operation.
• Control Features: EN (Enable) pin allows precise on/off control, enhancing efficiency in standby modes.
• Compact & Efficient: Surface-mount design (8SMD) with 44kHz switching frequency minimizes EMI and improves power density.
• Wide Input Range: Optimized for universal AC input (85-265VAC) applications.
• Low Standby Power: Ideal for energy-efficient designs compliant with global standards.

TNY254GN Applications

The TNY254GN excels in low-power, isolated AC/DC converters, including:

• Auxiliary Power Supplies: For industrial controls, appliances, and IoT devices.
• Consumer Electronics: Chargers, adapters, and set-top boxes requiring compact, efficient power solutions.
• LED Lighting Drivers: Low-noise, high-reliability designs for residential/commercial lighting.
• Smart Home Devices: Thermostats, sensors, and gateways benefiting from its low standby consumption.

Conclusion of TNY254GN

The TNY254GN stands out for its high integration, reliability, and cost-effectiveness, making it a top choice for 4W offline flyback converters. Its built-in protections, compact form factor, and energy-efficient operation address modern design challenges in consumer, industrial, and lighting applications. Engineers seeking a balance of performance and simplicity will find it ideal for space-constrained, high-efficiency power systems.