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VIPER17HD
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VIPER17HD

Product Overview

Category: Power Management IC
Use: Offline Converter
Characteristics: High voltage converter, high efficiency, low standby power consumption
Package: PowerSO-10 package
Essence: Integrated Switcher
Packaging/Quantity: Tube packaging, 50 units per tube

Specifications

  • Input Voltage Range: 85V to 265V AC
  • Output Voltage Range: 5V to 24V DC
  • Maximum Output Power: 12W
  • Maximum Switching Frequency: 60kHz
  • Operating Temperature Range: -40°C to +150°C

Detailed Pin Configuration

  1. VCC: Supply voltage input
  2. GND: Ground reference
  3. FB: Feedback pin for output voltage regulation
  4. CS: Current sense input for current limiting
  5. COMP: Compensation pin for stability control
  6. DRAIN: Drain pin for the internal power MOSFET
  7. SOURCE: Source pin for the internal power MOSFET
  8. VSENSE: Voltage sense input for overvoltage protection
  9. VDD: Internal bias voltage supply
  10. NC: No connection

Functional Features

  • Integrated high-voltage startup
  • Built-in error amplifier for precise regulation
  • Overvoltage and overcurrent protection
  • Soft-start function for controlled startup
  • Low standby power consumption in idle mode
  • Auto-restart feature for fault recovery

Advantages and Disadvantages

Advantages: - High efficiency conversion - Wide input voltage range - Compact and robust design - Comprehensive protection features - Low standby power consumption

Disadvantages: - Limited maximum output power - Restricted operating temperature range

Working Principles

The VIPER17HD is an offline converter that operates by converting high-voltage AC input to low-voltage DC output. It utilizes a high-voltage startup circuit, internal power MOSFET, and error amplifier for precise voltage regulation. The device incorporates various protection features such as overvoltage and overcurrent protection to ensure safe operation. Additionally, it includes a soft-start function to control the startup process and minimize inrush current. The VIPER17HD also offers low standby power consumption in idle mode, contributing to energy efficiency.

Detailed Application Field Plans

The VIPER17HD is widely used in various applications, including:

  1. Power adapters
  2. LED lighting
  3. Home appliances
  4. Industrial equipment
  5. Consumer electronics

Its compact size, high efficiency, and comprehensive protection features make it suitable for these diverse application fields.

Detailed and Complete Alternative Models

  1. VIPER16LD: Similar functionality with lower maximum output power
  2. VIPER26HD: Higher maximum output power with similar characteristics
  3. VIPER27HD: Enhanced overvoltage protection with comparable specifications

These alternative models offer different trade-offs in terms of output power, protection features, and cost, providing flexibility for specific application requirements.

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แสดงรายการคำถามและคำตอบทั่วไป 10 ข้อที่เกี่ยวข้องกับการใช้ VIPER17HD ในโซลูชันทางเทคนิค

Sure! Here are 10 common questions and answers related to the application of VIPER17HD in technical solutions:

  1. Q: What is VIPER17HD? A: VIPER17HD is a high-voltage converter IC designed for offline flyback converters, commonly used in power supply applications.

  2. Q: What is the input voltage range supported by VIPER17HD? A: VIPER17HD supports an input voltage range from 4.5V to 30V.

  3. Q: What is the maximum output power that can be achieved using VIPER17HD? A: The maximum output power depends on the specific application and design, but VIPER17HD can handle power levels up to 25W.

  4. Q: Can VIPER17HD be used in both AC-DC and DC-DC converter applications? A: No, VIPER17HD is specifically designed for AC-DC converter applications, such as offline flyback converters.

  5. Q: What are the key features of VIPER17HD? A: Some key features of VIPER17HD include integrated high-voltage startup, built-in protections (overvoltage, overload, and overtemperature), and low standby power consumption.

  6. Q: Is VIPER17HD suitable for universal input voltage applications? A: Yes, VIPER17HD is designed to support universal input voltage applications, typically ranging from 85VAC to 265VAC.

  7. Q: Can VIPER17HD operate in continuous or discontinuous conduction mode? A: VIPER17HD can operate in both continuous and discontinuous conduction modes, depending on the specific design requirements.

  8. Q: Does VIPER17HD require an external MOSFET for operation? A: Yes, VIPER17HD requires an external MOSFET to function as a power switch in the flyback converter topology.

  9. Q: What is the typical switching frequency range of VIPER17HD? A: The typical switching frequency range of VIPER17HD is between 16kHz and 60kHz, but it can be adjusted based on the application requirements.

  10. Q: Are there any evaluation boards or reference designs available for VIPER17HD? A: Yes, STMicroelectronics provides evaluation boards and reference designs for VIPER17HD, which can help in the development and testing of power supply solutions.

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