STMicroelectronics
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VIPER50SP
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VIPER50SP

Product Overview

Category: Power Management ICs
Use: Voltage Regulator
Characteristics: High efficiency, low standby power consumption
Package: TO-220
Essence: Integrated Switching Regulator
Packaging/Quantity: Tube/50 units per tube

Specifications

  • Input Voltage Range: 8V to 60V
  • Output Voltage Range: 5V to 55V
  • Maximum Output Current: 1.5A
  • Switching Frequency: 60kHz to 200kHz
  • Standby Power Consumption: <10mW
  • Operating Temperature Range: -40°C to +150°C

Detailed Pin Configuration

The VIPER50SP has a standard TO-220 package with the following pin configuration:

  1. VCC: Supply voltage 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 current limit protection
  6. EN: Enable pin for device activation
  7. VSENSE: Voltage sense pin for feedback loop compensation
  8. VOUT: Output voltage pin

Functional Features

  • Integrated high-voltage startup and sense-FET
  • Pulse frequency modulation (PFM) operation for improved efficiency at light loads
  • Overvoltage, overcurrent, and thermal protection
  • Soft-start function for controlled inrush current
  • Adjustable output voltage through external resistors
  • Low standby power consumption for energy-efficient applications

Advantages and Disadvantages

Advantages: - High efficiency resulting in reduced power dissipation - Wide input voltage range for versatile applications - Compact TO-220 package for easy integration - Comprehensive protection features for enhanced reliability - Adjustable output voltage for flexibility

Disadvantages: - Limited maximum output current of 1.5A - Relatively low switching frequency compared to some alternatives

Working Principles

The VIPER50SP is an integrated switching regulator that utilizes pulse frequency modulation (PFM) operation to regulate the output voltage. It incorporates a high-voltage startup circuit and sense-FET, allowing it to operate efficiently over a wide input voltage range. The device employs a feedback loop to maintain the desired output voltage by adjusting the duty cycle of the internal power switch. Various protection mechanisms, such as overvoltage, overcurrent, and thermal protection, ensure safe operation under different conditions.

Detailed Application Field Plans

The VIPER50SP finds applications in various fields, including but not limited to:

  1. Power supplies for industrial equipment
  2. LED lighting systems
  3. Automotive electronics
  4. Home appliances
  5. Battery charging circuits
  6. Telecom infrastructure
  7. Renewable energy systems

Detailed and Complete Alternative Models

  1. VIPER53SP: Similar specifications with higher maximum output current of 2.5A
  2. VIPER26K: Lower maximum output current of 0.8A but higher switching frequency
  3. VIPER17LD: Integrated power MOSFET with similar characteristics and package

These alternative models offer different trade-offs in terms of output current, switching frequency, and other features, providing options for specific application requirements.

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Перечислите 10 распространенных вопросов и ответов, связанных с применением VIPER50SP в технических решениях.

Sure! Here are 10 common questions and answers related to the application of VIPER50SP in technical solutions:

  1. Q: What is VIPER50SP?
    A: VIPER50SP is a high-voltage converter integrated circuit (IC) designed for offline flyback converters.

  2. Q: What is the input voltage range of VIPER50SP?
    A: The input voltage range of VIPER50SP is typically between 4.5V and 30V.

  3. Q: What is the output power range of VIPER50SP?
    A: VIPER50SP can handle output power ranging from a few watts up to 50W.

  4. Q: Can VIPER50SP be used in both AC and DC applications?
    A: Yes, VIPER50SP can be used in both AC and DC applications due to its wide input voltage range.

  5. Q: What are the key features of VIPER50SP?
    A: Some key features of VIPER50SP include high efficiency, low standby power consumption, and built-in protection features.

  6. Q: Is VIPER50SP suitable for low-power applications?
    A: Yes, VIPER50SP is suitable for low-power applications as it can efficiently handle power levels as low as a few watts.

  7. Q: Does VIPER50SP require an external MOSFET?
    A: No, VIPER50SP integrates a high-voltage startup MOSFET, eliminating the need for an external one.

  8. Q: Can VIPER50SP operate in continuous or discontinuous mode?
    A: VIPER50SP can operate in both continuous and discontinuous modes, depending on the load conditions.

  9. Q: What are the typical applications of VIPER50SP?
    A: VIPER50SP is commonly used in various applications such as LED lighting, home appliances, power adapters, and industrial controls.

  10. Q: Does VIPER50SP have built-in protection features?
    A: Yes, VIPER50SP includes built-in protection features like overvoltage protection, overload protection, and thermal shutdown to ensure safe operation.

Please note that the answers provided here are general and may vary depending on the specific implementation and requirements of the technical solution.