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VIPER22AS-E
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VIPER22AS-E

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Management
  • Characteristics: High voltage converter, energy-efficient, compact size
  • Package: SO-16
  • Essence: Switching Regulator
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Input Voltage Range: 85V to 265V AC
  • Output Voltage Range: 5V to 30V DC
  • Switching Frequency: 60kHz
  • Maximum Output Current: 700mA
  • Operating Temperature Range: -40°C to +125°C
  • Protection Features: Overvoltage protection, overcurrent protection, thermal shutdown

Detailed Pin Configuration

The VIPER22AS-E IC has a total of 16 pins. The pin configuration is as follows:

  1. VCC: Power supply input
  2. GND: Ground reference
  3. FB: Feedback pin for regulating the output voltage
  4. COMP: Compensation pin for stability control
  5. CS: Current sense pin for current limiting
  6. SS: Soft-start pin for gradual startup
  7. DRAIN: Drain pin for switching transistor
  8. SOURCE: Source pin for switching transistor
  9. NC: No connection
  10. NC: No connection
  11. NC: No connection
  12. NC: No connection
  13. NC: No connection
  14. NC: No connection
  15. NC: No connection
  16. NC: No connection

Functional Features

  • High efficiency power conversion
  • Low standby power consumption
  • Built-in protection features for reliable operation
  • Wide input voltage range for versatile applications
  • Compact size for space-constrained designs
  • Soft-start function for smooth startup

Advantages and Disadvantages

Advantages: - High energy efficiency - Compact size - Wide input voltage range - Built-in protection features

Disadvantages: - Limited maximum output current (700mA) - Relatively high switching frequency (60kHz)

Working Principles

The VIPER22AS-E is a switching regulator IC that converts high voltage AC input to low voltage DC output. It operates by rapidly switching the input voltage on and off using a transistor, which allows for efficient power conversion. The feedback mechanism ensures that the output voltage remains stable within the desired range. The IC also incorporates various protection features to safeguard against overvoltage, overcurrent, and thermal issues.

Detailed Application Field Plans

The VIPER22AS-E IC finds applications in various fields, including:

  1. Power supplies for consumer electronics
  2. LED lighting systems
  3. Industrial automation equipment
  4. Home appliances
  5. Battery chargers
  6. Automotive electronics

Detailed and Complete Alternative Models

  1. VIPER22A: Similar specifications and features, but with a different pin configuration (DIP-8 package).
  2. VIPER26: Higher maximum output current (1A), otherwise similar specifications.
  3. VIPER27: Higher maximum output current (1.2A), otherwise similar specifications.
  4. VIPER28: Higher maximum output current (1.5A), otherwise similar specifications.
  5. VIPER50A: Lower maximum output current (500mA), otherwise similar specifications.

These alternative models provide options with varying output currents to suit different application requirements.

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Перелічіть 10 типових запитань і відповідей, пов’язаних із застосуванням VIPER22AS-E у технічних рішеннях

Sure! Here are 10 common questions and answers related to the application of VIPER22AS-E in technical solutions:

  1. Q: What is VIPER22AS-E? A: VIPER22AS-E is a high-voltage converter IC designed for offline power supplies, offering a wide range of features and protections.

  2. Q: What are the typical applications of VIPER22AS-E? A: VIPER22AS-E is commonly used in various applications such as LED lighting, home appliances, industrial controls, and low-power offline converters.

  3. Q: What is the input voltage range supported by VIPER22AS-E? A: The input voltage range of VIPER22AS-E is typically from 85VAC to 265VAC, making it suitable for universal mains operation.

  4. Q: Can VIPER22AS-E handle high output power? A: Yes, VIPER22AS-E can handle output power up to 8W, depending on the specific application and design considerations.

  5. Q: Does VIPER22AS-E offer protection features? A: Yes, VIPER22AS-E provides several built-in protection features like overvoltage protection (OVP), overload protection (OLP), and thermal shutdown.

  6. Q: What is the maximum switching frequency of VIPER22AS-E? A: The maximum switching frequency of VIPER22AS-E is typically around 100 kHz, allowing for efficient power conversion.

  7. Q: Can VIPER22AS-E operate in a wide temperature range? A: Yes, VIPER22AS-E has a wide operating temperature range of -40°C to +150°C, ensuring reliable performance in various environments.

  8. Q: Is VIPER22AS-E compatible with dimming control for LED lighting applications? A: Yes, VIPER22AS-E can be easily integrated with dimming control circuits to enable adjustable brightness in LED lighting solutions.

  9. Q: Does VIPER22AS-E require an external MOSFET for power switching? A: No, VIPER22AS-E integrates a high-voltage power MOSFET internally, simplifying the design and reducing component count.

  10. Q: Are there any evaluation boards or reference designs available for VIPER22AS-E? A: Yes, STMicroelectronics provides evaluation boards and reference designs that can help engineers quickly prototype and implement VIPER22AS-E in their applications.

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