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VIPER37HE
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VIPER37HE

Product Overview

  • Category: Power Management IC
  • Use: Voltage Regulator
  • Characteristics: High Efficiency, Low Standby Power Consumption
  • Package: TO-220
  • Essence: Switching Regulator
  • Packaging/Quantity: Tube/50 units per tube

Specifications

  • Input Voltage Range: 85V to 265V AC
  • Output Voltage: 12V DC
  • Output Current: Up to 3.7A
  • Switching Frequency: 60kHz
  • Operating Temperature Range: -40°C to 150°C

Detailed Pin Configuration

The VIPER37HE has the following pin configuration:

  1. Drain (D): Connects to the primary winding of the transformer.
  2. Source (S): Connected to the ground reference.
  3. Feedback (FB): Provides feedback for regulating the output voltage.
  4. VCC: Supplies power to the internal control circuitry.
  5. Enable (EN): Enables or disables the device.
  6. Sense (SENSE): Monitors the output voltage.

Functional Features

  • Integrated high-voltage startup and sense-FET
  • Built-in protection features like overvoltage, overcurrent, and thermal shutdown
  • Low standby power consumption in burst mode operation
  • Soft-start function for smooth startup
  • Auto-restart feature in case of fault conditions

Advantages and Disadvantages

Advantages: - High efficiency leading to reduced power dissipation - Wide input voltage range for versatile applications - Compact TO-220 package for easy integration - Comprehensive protection features ensure system reliability

Disadvantages: - Relatively high switching frequency may require additional filtering components - Limited output current compared to some other models in the market

Working Principles

The VIPER37HE is a switching regulator that converts high-voltage AC input into low-voltage DC output. It utilizes a high-voltage startup circuit and an integrated sense-FET for efficient power conversion. The device operates in burst mode, reducing standby power consumption. It incorporates various protection mechanisms to safeguard against overvoltage, overcurrent, and thermal issues.

Detailed Application Field Plans

The VIPER37HE is commonly used in the following applications:

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

Detailed and Complete Alternative Models

  1. VIPER53HE: Similar specifications with higher output current capability.
  2. VIPER26HN: Lower output current but offers lower standby power consumption.
  3. VIPER17LD: Lower cost alternative with slightly reduced efficiency.

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Liệt kê 10 câu hỏi và câu trả lời thường gặp liên quan đến ứng dụng VIPER37HE trong giải pháp kỹ thuật

Sure! Here are 10 common questions and answers related to the application of VIPER37HE in technical solutions:

  1. Q: What is VIPER37HE?
    A: VIPER37HE is a high-voltage converter IC designed for offline power supplies, commonly used in various technical solutions.

  2. Q: What are the key features of VIPER37HE?
    A: VIPER37HE offers a wide input voltage range, high efficiency, integrated protection features, and a compact package size.

  3. Q: What applications can VIPER37HE be used for?
    A: VIPER37HE is suitable for a range of applications including LED lighting, home appliances, industrial automation, and consumer electronics.

  4. Q: How does VIPER37HE achieve high efficiency?
    A: VIPER37HE incorporates advanced control techniques such as frequency jittering and burst mode operation to optimize power conversion efficiency.

  5. Q: What are the integrated protection features in VIPER37HE?
    A: VIPER37HE includes built-in protections against overvoltage, overcurrent, and overtemperature conditions, ensuring safe and reliable operation.

  6. Q: Can VIPER37HE operate with a wide input voltage range?
    A: Yes, VIPER37HE supports a wide input voltage range typically from 85VAC to 265VAC, making it suitable for global applications.

  7. Q: Is VIPER37HE easy to use in technical solutions?
    A: Yes, VIPER37HE features a simple design-in process with minimal external components, enabling easy integration into various applications.

  8. Q: Does VIPER37HE offer any energy-saving features?
    A: Yes, VIPER37HE incorporates a standby mode and low-power consumption during light load conditions, contributing to energy efficiency.

  9. Q: Can VIPER37HE handle high output power requirements?
    A: Yes, VIPER37HE is capable of delivering high output power up to several tens of watts, depending on the specific application and design.

  10. Q: Are there any reference designs or evaluation boards available for VIPER37HE?
    A: Yes, many manufacturers provide reference designs and evaluation boards that can help engineers quickly prototype and implement VIPER37HE in their technical solutions.

Please note that the answers provided here are general and may vary based on specific product documentation and application requirements.