Power Integrations
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TNY276PN
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TNY276PN

Product Overview

Category

TNY276PN belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in power management applications.

Characteristics

  • TNY276PN is a highly efficient offline switcher.
  • 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

TNY276PN is available in a compact DIP-7 package.

Essence

The essence of TNY276PN lies in its ability to efficiently regulate power in various applications while ensuring safety and reliability.

Packaging/Quantity

TNY276PN is typically sold in reels or tubes containing multiple units. The exact quantity may vary depending on the supplier.

Specifications

  • Input Voltage Range: 85V - 265V AC
  • Output Power: Up to 15W
  • Operating Frequency: 132 kHz (typical)
  • Standby Power Consumption: <30 mW at 230V AC
  • Efficiency: Up to 89% (depending on application)

Detailed Pin Configuration

  1. VDD: Supply voltage pin
  2. BP/M: Bootstrap/Multifunction pin
  3. FB: Feedback pin for output voltage regulation
  4. GND: Ground reference pin
  5. D: Drain pin for the internal power MOSFET
  6. S: Source pin for the internal power MOSFET
  7. FBP: Feedforward compensation pin

Functional Features

  • Accurate output voltage regulation within ±5%
  • Auto-restart protection for overtemperature, output short-circuit, and open-loop faults
  • Frequency jittering for reduced electromagnetic interference (EMI)
  • Built-in line undervoltage lockout (UVLO) for enhanced safety
  • Integrated high-voltage startup and sense-FET circuitry

Advantages and Disadvantages

Advantages

  • High efficiency leads to reduced power consumption and heat dissipation.
  • Comprehensive protection features ensure system reliability.
  • Compact package allows for space-saving designs.
  • Frequency jittering minimizes EMI emissions.

Disadvantages

  • Limited output power capability compared to higher-rated devices.
  • Requires external components for complete power management solutions.

Working Principles

TNY276PN operates based on a flyback converter topology. It utilizes a high-voltage switched current source to provide energy to the primary winding of the transformer. The energy is then transferred to the secondary winding, where it is rectified and filtered to obtain the desired output voltage. The IC controls the switching of the power MOSFET to regulate the output voltage accurately.

Detailed Application Field Plans

TNY276PN finds applications in various power management scenarios, including but not limited to: - AC/DC adapters - LED lighting - Auxiliary power supplies - Home appliances - Industrial equipment

Detailed and Complete Alternative Models

  1. TNY277PN: Similar to TNY276PN with enhanced output power capability.
  2. TNY278PN: Higher-rated version with extended input voltage range.
  3. TNY279PN: Advanced model featuring additional protection features.

These alternative models offer similar functionality while catering to specific application requirements.

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Orodhesha maswali na majibu 10 ya kawaida yanayohusiana na utumiaji wa TNY276PN katika suluhu za kiufundi

Sure! Here are 10 common questions and answers related to the application of TNY276PN in technical solutions:

  1. Q: What is TNY276PN? A: TNY276PN is a highly integrated offline switcher IC (integrated circuit) designed for low-power applications.

  2. Q: What are the typical applications of TNY276PN? A: TNY276PN is commonly used in power supply designs for various electronic devices, such as home appliances, consumer electronics, and industrial equipment.

  3. Q: What is the input voltage range supported by TNY276PN? A: TNY276PN supports a wide input voltage range from 85V AC to 265V AC.

  4. Q: What is the maximum output power that can be achieved with TNY276PN? A: The maximum output power depends on the specific design and external components used, but typically ranges from 5W to 15W.

  5. Q: Does TNY276PN require an external MOSFET for operation? A: No, TNY276PN integrates a high-voltage power MOSFET internally, eliminating the need for an external MOSFET.

  6. Q: Can TNY276PN operate in a flyback topology? A: Yes, TNY276PN is specifically designed for flyback converter topologies.

  7. Q: What are the key features of TNY276PN? A: Some key features of TNY276PN include primary-side regulation, frequency jittering for reduced EMI, auto-restart protection, and built-in safety features.

  8. Q: Is TNY276PN suitable for low standby power applications? A: Yes, TNY276PN is optimized for low standby power consumption, making it suitable for energy-efficient designs.

  9. Q: Does TNY276PN have built-in protection features? A: Yes, TNY276PN incorporates various protection features like over-temperature protection, overvoltage protection, and overcurrent protection.

  10. Q: Are there any reference designs available for TNY276PN? A: Yes, the manufacturer provides reference designs and application notes that can help in implementing TNY276PN in different technical solutions.

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