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TNY268PN
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TNY268PN

Product Overview

Category

TNY268PN belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in power supply applications.

Characteristics

  • TNY268PN is a highly efficient offline switcher IC.
  • It integrates a 700V power MOSFET, oscillator, high-voltage switched current source, and other control circuitry onto a single chip.
  • The device operates in a frequency jittering mode to reduce EMI emissions.
  • It provides accurate output voltage regulation and comprehensive protection features.

Package

TNY268PN is available in a standard DIP-7 package.

Essence

The essence of TNY268PN lies in its ability to provide reliable and efficient power supply solutions for various applications.

Packaging/Quantity

This product is typically packaged in reels or tubes, with quantities varying according to customer requirements.

Specifications

  • Input Voltage Range: 85VAC to 265VAC
  • Output Power: Up to 15W
  • Frequency Range: 132kHz to 150kHz
  • Maximum Duty Cycle: 72%
  • Standby Power: <30mW at 230VAC input

Detailed Pin Configuration

  1. VDD - Power Supply Voltage
  2. BP/MULT - Boost Pin / Frequency Setting Pin
  3. FB - Feedback Pin
  4. GND - Ground
  5. DRAIN - High-Voltage Power MOSFET Drain Pin
  6. SOURCE - High-Voltage Power MOSFET Source Pin
  7. CONTROL - Control Pin

Functional Features

  • Accurate output voltage regulation within ±5% tolerance.
  • Auto-restart protection feature for fault conditions such as output short-circuit, open-loop, and overvoltage.
  • Built-in frequency jittering for reduced electromagnetic interference (EMI).
  • Integrated high-voltage startup and current source.
  • Low standby power consumption for energy efficiency.

Advantages

  • High level of integration reduces external component count and PCB space requirements.
  • Excellent efficiency and low standby power consumption contribute to energy savings.
  • Comprehensive protection features enhance system reliability.
  • Frequency jittering minimizes EMI emissions, ensuring compliance with regulatory standards.

Disadvantages

  • Limited output power capability compared to higher-rated devices.
  • Not suitable for applications requiring very high voltage or power levels.

Working Principles

TNY268PN operates on a frequency jittering mode control principle. It uses an internal oscillator to generate a switching frequency that varies slightly to reduce EMI emissions. The device regulates the output voltage by adjusting the duty cycle of the internal power MOSFET based on feedback from the FB pin. It incorporates various protection mechanisms to ensure safe operation under fault conditions.

Detailed Application Field Plans

TNY268PN finds extensive application in various power supply designs, including but not limited to: - AC/DC adapters - LED lighting - Home appliances - Industrial controls - Consumer electronics

Detailed and Complete Alternative Models

  • TNY267PN
  • TNY269PN
  • TNY277PN
  • TNY278PN
  • TNY279PN

These alternative models offer similar functionality and characteristics, providing flexibility in design choices while maintaining compatibility with existing systems.

In conclusion, TNY268PN is a highly efficient offline switcher IC used in power supply applications. Its integrated features, accurate regulation, and comprehensive protection make it a reliable choice for various industries. With its compact package and energy-saving capabilities, it offers an excellent solution for power-efficient designs.

Listen Sie 10 häufige Fragen und Antworten im Zusammenhang mit der Anwendung von TNY268PN in technischen Lösungen auf

Sure! Here are 10 common questions and answers related to the application of TNY268PN in technical solutions:

  1. Q: What is TNY268PN? A: TNY268PN is a highly integrated offline switcher IC (integrated circuit) designed for low power applications.

  2. Q: What are the typical applications of TNY268PN? A: TNY268PN is commonly used in various low-power applications such as power adapters, chargers, LED lighting, and standby power supplies.

  3. Q: What is the maximum output power that TNY268PN can handle? A: TNY268PN can handle a maximum output power of up to 25 watts.

  4. Q: Does TNY268PN require an external MOSFET? A: No, TNY268PN integrates a high-voltage power MOSFET, eliminating the need for an external MOSFET.

  5. Q: Can TNY268PN operate in a wide input voltage range? A: Yes, TNY268PN can operate in a wide input voltage range, typically from 85VAC to 265VAC.

  6. Q: Is TNY268PN suitable for universal input applications? A: Yes, TNY268PN is designed to work with both 115VAC and 230VAC input voltages, making it suitable for universal input applications.

  7. Q: Does TNY268PN have built-in protection features? A: Yes, TNY268PN incorporates various protection features like over-temperature protection, overvoltage protection, and overcurrent protection.

  8. Q: Can TNY268PN be used in dimmable LED lighting applications? A: Yes, TNY268PN supports dimming functionality and can be used in dimmable LED lighting applications.

  9. Q: What is the typical efficiency of TNY268PN? A: TNY268PN offers high efficiency, typically above 80%, which helps in reducing power consumption and heat dissipation.

  10. Q: Are there any reference designs available for TNY268PN? A: Yes, the manufacturer provides reference designs and application notes that can help in implementing TNY268PN in various technical solutions.

Please note that the answers provided here are general and may vary depending on specific design considerations and requirements.