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TNY274PN
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TNY274PN

Product Overview

Category

TNY274PN belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in power supply applications.

Characteristics

  • TNY274PN is a low-power offline switcher that integrates a 700V power MOSFET.
  • It operates at high efficiency and provides accurate control over output voltage.
  • The IC incorporates various protection features, such as thermal shutdown and auto-restart.

Package

TNY274PN is available in a compact DIP-7 package.

Essence

The essence of TNY274PN lies in its ability to efficiently regulate power supply voltages while ensuring safety and reliability.

Packaging/Quantity

TNY274PN is typically packaged in reels containing 2500 units.

Specifications

  • Input Voltage Range: 85VAC to 265VAC
  • Output Power: Up to 10W
  • Switching Frequency: 132 kHz (typical)
  • Maximum Duty Cycle: 72%
  • Standby Power Consumption: <30mW
  • Operating Temperature Range: -40°C to +150°C

Detailed Pin Configuration

  1. VDD: Power supply input
  2. BP/M: Bypass/Multifunction pin
  3. FB: Feedback pin for output voltage regulation
  4. GND: Ground reference
  5. D: Drain pin for power MOSFET
  6. S: Source pin for power MOSFET
  7. F: Frequency setting pin

Functional Features

  • Accurate output voltage regulation
  • Built-in line voltage compensation
  • Auto-restart protection in case of fault conditions
  • Frequency jittering for reduced EMI emissions
  • Low standby power consumption
  • Integrated high-voltage power MOSFET

Advantages

  • High efficiency leading to energy savings
  • Compact size and low component count
  • Robust protection features ensure system reliability
  • Wide input voltage range for versatile applications
  • Reduced EMI emissions due to frequency jittering

Disadvantages

  • Limited output power capability (up to 10W)
  • Relatively high operating temperature range

Working Principles

TNY274PN operates on the principle of pulse width modulation (PWM). It regulates the output voltage by adjusting the duty cycle of the switching signal. The integrated power MOSFET switches on and off at a high frequency, converting the input voltage into a regulated output voltage. The IC continuously monitors the output voltage and adjusts the duty cycle accordingly to maintain the desired voltage level.

Detailed Application Field Plans

TNY274PN finds extensive use in various applications, including:

  1. Power adapters for consumer electronics
  2. LED lighting systems
  3. Industrial control systems
  4. Home automation devices
  5. Battery chargers
  6. Offline power supplies for appliances

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to TNY274PN include:

  1. TNY275PN
  2. TNY276PN
  3. TNY277PN
  4. TNY278PN

These models are part of the same IC family and provide different specifications and features to cater to diverse application requirements.

In conclusion, TNY274PN is a highly efficient and compact offline switcher IC used in power supply applications. Its integrated features, accurate voltage regulation, and robust protection mechanisms make it suitable for various industries. While it has limitations in terms of output power and operating temperature range, there are alternative models available within the same IC family to address specific needs.

Wymień 10 typowych pytań i odpowiedzi związanych z zastosowaniem TNY274PN w rozwiązaniach technicznych

Sure! Here are 10 common questions and answers related to the application of TNY274PN in technical solutions:

  1. Q: What is TNY274PN? A: TNY274PN is a highly integrated offline switcher IC (integrated circuit) designed for low-power applications.

  2. Q: What are the typical applications of TNY274PN? A: TNY274PN is commonly used in applications such as power supplies, adapters, chargers, LED lighting, and other low-power devices.

  3. Q: What is the input voltage range supported by TNY274PN? A: TNY274PN supports an input voltage range of 85VAC to 265VAC, making it suitable for worldwide use.

  4. Q: What is the output power range that TNY274PN can handle? A: TNY274PN can handle an output power range of up to 15 watts, depending on the specific application and design considerations.

  5. Q: Does TNY274PN have built-in protection features? A: Yes, TNY274PN incorporates various protection features like over-temperature protection, over-voltage protection, and over-current protection.

  6. Q: Can TNY274PN operate in a wide temperature range? A: Yes, TNY274PN has a wide operating temperature range of -40°C to +150°C, allowing it to function reliably in various environments.

  7. Q: Is TNY274PN compatible with both primary-side and secondary-side regulation? A: Yes, TNY274PN supports both primary-side and secondary-side regulation, providing flexibility in design and implementation.

  8. Q: Does TNY274PN require an external MOSFET for operation? A: No, TNY274PN integrates a high-voltage power MOSFET, eliminating the need for an external MOSFET in most applications.

  9. Q: Can TNY274PN be used in designs requiring high efficiency? A: Yes, TNY274PN is designed for high efficiency and incorporates features like frequency jittering to minimize EMI (electromagnetic interference).

  10. Q: Are there any reference designs or application notes available for TNY274PN? A: Yes, the manufacturer of TNY274PN provides reference designs and application notes that can help engineers in implementing the IC effectively in their designs.

Please note that these answers are general and may vary depending on specific design requirements and application considerations.