Power Integrations
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TNY278GN
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TNY278GN

Product Overview

Category

TNY278GN belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in power supply applications.

Characteristics

  • TNY278GN is a highly efficient, low-power offline switcher.
  • It offers excellent performance and reliability.
  • The IC operates at high frequency, enabling compact designs.
  • It incorporates various protection features for enhanced safety.

Package

TNY278GN is available in a small outline package (SOP) format.

Essence

The essence of TNY278GN lies in its ability to efficiently regulate power supply in a compact and reliable manner.

Packaging/Quantity

The IC is typically packaged in reels or tubes, with quantities varying based on customer requirements.

Specifications

  • Input Voltage Range: 85VAC to 265VAC
  • Output Power: Up to 15W
  • Switching Frequency: 132 kHz (typical)
  • Operating Temperature Range: -40°C to +150°C
  • Standby Power Consumption: <30mW

Detailed Pin Configuration

  1. VDD: Power supply input
  2. BP/M: Burst mode operation pin
  3. FB: Feedback pin for output voltage regulation
  4. GND: Ground reference
  5. D: Drain pin for primary switch
  6. S: Source pin for primary switch
  7. EN/UV: Enable/Undervoltage lockout pin
  8. NC: No connection

Functional Features

  • Integrated high-voltage power MOSFET
  • Auto-restart protection for fault conditions
  • Frequency jittering for reduced EMI emissions
  • Built-in soft-start for controlled startup
  • Cycle-by-cycle current limit for overcurrent protection

Advantages and Disadvantages

Advantages

  • High efficiency leading to energy savings
  • Compact design due to high-frequency operation
  • Comprehensive protection features ensure system safety
  • Wide input voltage range for versatile applications

Disadvantages

  • Limited output power compared to higher-rated ICs
  • Higher cost compared to some non-integrated solutions

Working Principles

TNY278GN operates on the principle of pulse width modulation (PWM). It regulates the output voltage by controlling the duty cycle of the switching waveform. The integrated MOSFET acts as a switch, rapidly turning on and off to maintain the desired output voltage.

Detailed Application Field Plans

TNY278GN finds extensive application in various power supply systems, including but not limited to: - AC-DC adapters - LED lighting - Home appliances - Industrial equipment - Consumer electronics

Detailed and Complete Alternative Models

  1. TNY277GN: Similar specifications and features, suitable for lower power applications.
  2. TNY280GN: Higher power rating and additional features, suitable for more demanding applications.
  3. TNY279GN: Intermediate power rating and features, offering a balance between TNY277GN and TNY280GN.

These alternative models provide options based on specific power requirements and feature preferences.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací TNY278GN v technických řešeních

Sure! Here are 10 common questions and answers related to the application of TNY278GN in technical solutions:

  1. Q: What is TNY278GN? A: TNY278GN is a highly integrated offline switcher IC (integrated circuit) designed for low power applications.

  2. Q: What are the typical applications of TNY278GN? A: TNY278GN is commonly used in applications such as power adapters, chargers, LED lighting, and standby power supplies.

  3. Q: What is the input voltage range supported by TNY278GN? A: TNY278GN supports an input voltage range of 85VAC to 265VAC.

  4. Q: What is the maximum output power that can be achieved with TNY278GN? A: The maximum output power depends on the specific design and application, but typically ranges from 5W to 15W.

  5. Q: Does TNY278GN require an external MOSFET? A: No, TNY278GN integrates a high-voltage power MOSFET, eliminating the need for an external MOSFET.

  6. Q: Can TNY278GN operate in a wide temperature range? A: Yes, TNY278GN is designed to operate reliably in a wide temperature range, typically from -40°C to 150°C.

  7. Q: Does TNY278GN have built-in protection features? A: Yes, TNY278GN incorporates various protection features like over-temperature protection, overvoltage protection, and overload protection.

  8. Q: Is TNY278GN suitable for universal input voltage applications? A: Yes, TNY278GN is specifically designed for universal input voltage applications, making it suitable for use worldwide.

  9. Q: Can TNY278GN be used in dimmable LED lighting applications? A: Yes, TNY278GN can be used in dimmable LED lighting applications with the addition of external circuitry for dimming control.

  10. Q: Are there any reference designs available for TNY278GN? A: Yes, the manufacturer provides reference designs and application notes to assist in the implementation of TNY278GN in various technical solutions.

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