TNY253P

Product Overview

Category

The TNY253P belongs to the category of integrated circuits (ICs) and specifically falls under the power management ICs.

Use

It is primarily used for power supply applications, offering efficient and reliable performance in various electronic devices.

Characteristics

• Efficiency: The TNY253P is known for its high efficiency, making it suitable for energy-conscious designs.
• Compact Size: It features a compact design, enabling its integration into space-constrained applications.
• Low Standby Power: The device is designed to minimize standby power consumption, contributing to energy savings.

Package

The TNY253P is available in a small outline package (SOP) which facilitates easy mounting on printed circuit boards.

Essence

The essence of TNY253P lies in its ability to provide efficient power management solutions for a wide range of electronic devices.

Packaging/Quantity

It is typically supplied in reels containing a specific quantity, as per the manufacturer's packaging standards.

Specifications

• Input Voltage Range: 85 VAC to 265 VAC
• Output Power: Up to 5 W
• Operating Temperature Range: -40°C to 125°C
• Frequency Range: 132 kHz to 150 kHz
• Maximum Duty Cycle: 72%

Detailed Pin Configuration

The TNY253P features a standard pin configuration with the following key pins: 1. VDD - Power supply input 2. FB - Feedback pin for voltage regulation 3. GND - Ground connection 4. D - Drain pin for power switching 5. BP/M - Burst mode control pin

Functional Features

• Primary-Side Regulation (PSR): The TNY253P incorporates PSR technology, allowing for simplified feedback and control without the need for an optocoupler.
• Auto-Restart Operation: In the event of a fault condition, the device automatically restarts, enhancing system reliability.
• Frequency Jittering: This feature helps in reducing electromagnetic interference (EMI) emissions, ensuring compliance with regulatory standards.

Advantages and Disadvantages

Advantages

• Integrated Protection: The TNY253P offers built-in protection features such as overvoltage and overcurrent protection, enhancing system robustness.
• Simplified Design: Its primary-side regulation and auto-restart operation simplify the overall design of power supplies.
• Energy Efficiency: The device's high efficiency contributes to energy savings and reduced heat dissipation.

Disadvantages

• Limited Power Range: The TNY253P is optimized for low to medium power applications and may not be suitable for high-power systems.
• External Components: Some additional external components may be required for specific application requirements, adding to the overall BOM cost.

Working Principles

The TNY253P operates on the principle of primary-side regulation, where the feedback and control functions are performed directly on the primary side of the transformer. This approach simplifies the design by eliminating the need for an optocoupler and secondary-side feedback circuitry. The device utilizes a combination of frequency modulation and jittering techniques to achieve precise voltage regulation and minimize EMI emissions.

Detailed Application Field Plans

The TNY253P is well-suited for a variety of applications including: - AC-DC Adapters - LED Lighting - Home Appliances - Industrial Power Supplies - Consumer Electronics

Detailed and Complete Alternative Models

For applications requiring different specifications or features, alternative models such as TNY254P and TNY255P can be considered. These variants offer higher power capabilities and additional functionality while maintaining compatibility with the TNY253P footprint and pinout.

In conclusion, the TNY253P serves as a versatile and efficient power management solution for a diverse range of electronic applications, offering a balance of performance, simplicity, and reliability.

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