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of Power Integrations TNY290PG The TNY290PG is a compact and efficient offline switcher IC designed for a variety of low-power applications. It combines a high-voltage power switch and other control circuitry, enabling its use in low-power off-line flyback converters with minimal external components. This IC is well-suited for applications requiring power supplies that operate at low wattages, typically around 5W to 19W. Functions - Integrated Power Switch: The TNY290PG features an integrated high-voltage power MOSFET, eliminating the need for an external switch. - Current Mode Control: It utilizes current mode control for improved performance and stability during various load conditions. - Simple Design: This IC allows for a simple design with fewer external components, which can result in reduced PCB area and lower production costs. - Low Standby Power Consumption: It is designed to operate efficiently in standby mode, making it suitable for energy-saving applications. Applications - Wall Adapters: Used in power adapters for consumer electronics. - TV and Set-top Boxes: Employed in power supplies for televisions and set-top boxes. - LED Drivers: Can be used for driving LEDs in low-power applications. - Home Appliances: Used in small household appliances requiring a compact power supply. - Battery Chargers: Suitable for low-power battery charging applications. Alternative Parts - Power Integrations TNY288: Similar functionality with slight variations in output power ratings. - Power Integrations TNY289: Another alternative in the same family with different specifications. - Microchip MCP16331: A different topology but can be used in similar applications. Embedded Modules - Off-the-Shelf Power Supply Modules: There are many pre-designed modules available that incorporate the TNY290PG, which allows for easy integration into products requiring low-power supplies. Related Q&A 1. Q: What is the maximum output power of the TNY290PG? - A: The TNY290PG is designed for applications with a maximum output power of around 5W to 19W, depending on the specific design and configuration. 2. Q: What advantages does the TNY290PG offer compared to discrete designs? - A: The TNY290PG offers a compact size, lower component count, reduced design complexity, and improved reliability due to integrated components, which ultimately lead to lower costs and easier manufacturing. 3. Q: In which applications is the TNY290PG typically used? - A: It is typically used in applications such as wall adapters, TV and set-top box power supplies, LED drivers, small home appliances, and low-power battery chargers. 4. Q: How does the TNY290PG contribute to energy efficiency? - A: The TNY290PG features low standby power consumption and efficient operation in low-power applications, which helps reduce energy usage in devices that are left on for extended periods. 5. Q: Can the TNY290PG be used in battery-operated devices? - A: While the TNY290PG is primarily designed for plug-in power supplies, it can be used in small battery-operated devices if appropriately designed to ensure efficient power management.