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VIPER20A-E
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VIPER20A-E

Product Overview

Category

VIPER20A-E belongs to the category of integrated power converters.

Use

It is commonly used for power supply applications.

Characteristics

  • High efficiency
  • Low standby power consumption
  • Wide input voltage range
  • Overvoltage and overcurrent protection
  • Thermal shutdown protection

Package

VIPER20A-E is available in a compact and robust package, suitable for various applications.

Essence

The essence of VIPER20A-E lies in its ability to efficiently convert and regulate power for different electronic devices.

Packaging/Quantity

The product is typically packaged in reels or tubes, with varying quantities depending on the manufacturer's specifications.

Specifications

  • Input voltage range: 85V - 265V AC
  • Output voltage: Adjustable (typically 5V - 24V DC)
  • Maximum output current: 1.2A
  • Switching frequency: 60kHz
  • Operating temperature range: -40°C to +150°C

Detailed Pin Configuration

  1. VCC: Power supply input
  2. GND: Ground reference
  3. FB: Feedback pin for output voltage regulation
  4. COMP: Compensation pin for stability control
  5. CS: Current sense pin for overcurrent protection
  6. DRAIN: Switching transistor drain connection
  7. SOURCE: Switching transistor source connection

Functional Features

  • Integrated high-voltage startup
  • Pulse frequency modulation control
  • Built-in soft-start function
  • Auto-restart after fault condition
  • Protection against short-circuit and overload

Advantages and Disadvantages

Advantages

  • High efficiency leads to reduced power loss
  • Wide input voltage range allows for versatile applications
  • Compact package size enables space-saving designs
  • Comprehensive protection features ensure device safety

Disadvantages

  • Limited maximum output current may not be suitable for high-power applications
  • Relatively high switching frequency may cause electromagnetic interference in sensitive systems

Working Principles

VIPER20A-E operates on the principle of pulse frequency modulation control, where the input voltage is converted into a high-frequency pulse train. This pulse train is then filtered and regulated to provide a stable output voltage.

Detailed Application Field Plans

VIPER20A-E finds extensive use in various applications, including but not limited to: - Power adapters - LED lighting - Home appliances - Industrial equipment - Consumer electronics

Detailed and Complete Alternative Models

  1. VIPER26LD-E: Similar features with enhanced output current capability (up to 2.5A).
  2. VIPER27HN-E: Higher input voltage range and increased output power handling capacity.
  3. VIPER50A-E: Lower standby power consumption and improved efficiency.

These alternative models offer similar functionality to VIPER20A-E while catering to specific requirements of different applications.

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Liste 10 perguntas e respostas comuns relacionadas à aplicação de VIPER20A-E em soluções técnicas

Sure! Here are 10 common questions and answers related to the application of VIPER20A-E in technical solutions:

  1. Q: What is VIPER20A-E? A: VIPER20A-E is a high-voltage converter IC designed for offline power supplies, offering high efficiency and low standby power consumption.

  2. Q: What are the typical applications of VIPER20A-E? A: VIPER20A-E is commonly used in various applications such as LED lighting, home appliances, industrial automation, and power adapters.

  3. Q: What is the input voltage range supported by VIPER20A-E? A: VIPER20A-E supports an input voltage range from 85VAC to 265VAC, making it suitable for worldwide use.

  4. Q: Can VIPER20A-E handle high output power? A: Yes, VIPER20A-E can handle output power up to 20W, making it suitable for a wide range of low-power applications.

  5. Q: Does VIPER20A-E offer protection features? A: Yes, VIPER20A-E provides various protection features like overvoltage protection (OVP), overload protection (OLP), and thermal shutdown.

  6. Q: Is VIPER20A-E easy to implement in a design? A: Yes, VIPER20A-E comes in a compact package and requires minimal external components, making it relatively easy to integrate into a design.

  7. Q: Can VIPER20A-E operate in a wide temperature range? A: Yes, VIPER20A-E has a wide operating temperature range from -40°C to +150°C, ensuring reliable performance even in harsh environments.

  8. Q: Does VIPER20A-E support dimming control for LED lighting applications? A: Yes, VIPER20A-E offers support for dimming control through pulse width modulation (PWM), allowing precise control of LED brightness.

  9. Q: Can VIPER20A-E operate in a flyback topology? A: Yes, VIPER20A-E is specifically designed for flyback converter topologies, making it suitable for various power supply designs.

  10. Q: Are there any evaluation boards or reference designs available for VIPER20A-E? A: Yes, STMicroelectronics provides evaluation boards and reference designs that can help designers quickly prototype and implement VIPER20A-E in their applications.

Please note that these answers are general and may vary depending on the specific requirements and implementation of VIPER20A-E in different technical solutions.