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TNY256PN
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TNY256PN

Product Overview

Category

TNY256PN belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in power supply applications.

Characteristics

  • TNY256PN is a low-power offline switcher that integrates a 700V power MOSFET.
  • It operates in a frequency jittering mode to reduce EMI and improve efficiency.
  • The device incorporates various protection features such as thermal shutdown, auto-restart, and cycle-by-cycle current limit.

Package

TNY256PN is available in a compact DIP-7 package.

Essence

The essence of TNY256PN lies in its ability to provide efficient and reliable power supply solutions in a compact form factor.

Packaging/Quantity

TNY256PN is typically packaged in reels containing 2500 units.

Specifications

  • Input Voltage Range: 85VAC to 265VAC
  • Output Power: Up to 10W
  • Operating Frequency: 132 kHz (typical)
  • Maximum Duty Cycle: 72%
  • Standby Power Consumption: <30 mW at 230VAC input

Detailed Pin Configuration

  1. VDD - Power Supply Voltage
  2. BP/M - Bypass/Multifunction Pin
  3. FB - Feedback Pin
  4. GND - Ground
  5. D - Drain Pin
  6. S - Source Pin
  7. FBP - Feedforward Bypass Pin

Functional Features

  • Frequency Jittering for EMI Reduction
  • Auto-Restart Protection
  • Cycle-by-Cycle Current Limiting
  • Built-in Soft Start
  • Line Undervoltage Lockout (UVLO)
  • Overtemperature Protection

Advantages and Disadvantages

Advantages

  • High integration reduces component count and PCB space requirements.
  • Low standby power consumption enhances energy efficiency.
  • Built-in protection features ensure safe operation and reliability.
  • Frequency jittering minimizes electromagnetic interference.

Disadvantages

  • Limited output power capability (up to 10W).
  • Not suitable for high-power applications.

Working Principles

TNY256PN operates as a flyback converter, providing galvanic isolation between the input and output. It utilizes frequency jittering to spread the switching noise spectrum, reducing electromagnetic interference. The device regulates the output voltage by adjusting the duty cycle of the internal power MOSFET.

Detailed Application Field Plans

TNY256PN finds extensive application in various low-power offline power supply designs. Some common application areas include:

  1. Consumer Electronics: Power adapters for smartphones, tablets, and other portable devices.
  2. Home Appliances: LED lighting, smart home devices, and small kitchen appliances.
  3. Industrial Equipment: Control systems, motor drives, and instrumentation.
  4. Automotive: Battery chargers, auxiliary power supplies, and infotainment systems.

Detailed and Complete Alternative Models

  1. TNY255PN: Similar specifications and features, but with lower output power capability (up to 5W).
  2. TNY257PN: Higher output power capability (up to 15W) with similar characteristics and pin configuration.

Note: This is not an exhaustive list, and there may be other alternative models available from different manufacturers.

In conclusion, TNY256PN is a versatile integrated circuit designed for low-power offline power supply applications. Its compact size, efficient performance, and built-in protection features make it a popular choice among designers seeking reliable and cost-effective solutions.

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Liệt kê 10 câu hỏi và câu trả lời thường gặp liên quan đến ứng dụng TNY256PN trong giải pháp kỹ thuật

Sure! Here are 10 common questions and answers related to the application of TNY256PN in technical solutions:

  1. Q: What is TNY256PN? A: TNY256PN is a power integrated circuit (IC) that combines multiple functions required for offline power conversion into a single device.

  2. Q: What are the typical applications of TNY256PN? A: TNY256PN is commonly used in various low-power applications such as power adapters, chargers, LED lighting, and standby power supplies.

  3. Q: What is the input voltage range supported by TNY256PN? A: TNY256PN supports an input voltage range of typically 85VAC to 265VAC, making it suitable for worldwide use.

  4. Q: What is the output power range that TNY256PN can handle? A: TNY256PN can handle output power ranging from a few watts up to around 15 watts, depending on the specific application and design considerations.

  5. Q: Does TNY256PN require an external heat sink for cooling? A: No, TNY256PN is designed to operate without an external heat sink in most low-power applications, thanks to its efficient thermal management capabilities.

  6. Q: Can TNY256PN operate in a wide temperature range? A: Yes, TNY256PN is designed to operate reliably in a wide temperature range, typically from -40°C to +150°C.

  7. Q: Is TNY256PN compatible with both AC and DC inputs? A: No, TNY256PN is specifically designed for AC input applications and may not be suitable for direct DC input without additional circuitry.

  8. Q: Does TNY256PN have built-in protection features? A: Yes, TNY256PN incorporates various protection features such as overvoltage protection (OVP), overcurrent protection (OCP), and thermal shutdown.

  9. Q: Can TNY256PN be used in high-frequency switching applications? A: Yes, TNY256PN is designed for high-frequency operation, typically in the range of tens to hundreds of kilohertz.

  10. Q: Are there any recommended reference designs or application notes available for TNY256PN? A: Yes, the manufacturer of TNY256PN provides detailed reference designs, application notes, and design tools to assist engineers in implementing the IC effectively in their applications.

Please note that the answers provided here are general and may vary depending on specific design considerations and requirements. It is always recommended to refer to the datasheet and application notes provided by the manufacturer for accurate information.