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VIPER35LE
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VIPER35LE

Product Overview

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

Specifications

  • Input Voltage Range: 85V to 265V AC
  • Output Voltage Range: 5V to 30V DC
  • Maximum Output Current: 1.5A
  • Switching Frequency: 60kHz
  • Operating Temperature Range: -40°C to +150°C
  • Protection Features: Overvoltage protection, overcurrent protection, thermal shutdown

Detailed Pin Configuration

The VIPER35LE has the following pin configuration:

  1. VCC: Supply voltage input
  2. GND: Ground reference
  3. FB: Feedback pin for output voltage regulation
  4. CS: Current sense pin for current limit control
  5. EN: Enable pin for turning on/off the regulator
  6. VSENSE: Voltage sense pin for feedback compensation
  7. DRAIN: Drain pin for switching transistor connection
  8. SOURCE: Source pin for switching transistor connection

Functional Features

  • Integrated high-voltage startup
  • Built-in error amplifier for precise voltage regulation
  • Cycle-by-cycle current limit control
  • Soft-start function for controlled startup
  • Auto-restart feature for fault protection and recovery
  • Low standby power consumption in idle mode

Advantages and Disadvantages

Advantages

  • High efficiency leading to energy savings
  • Wide input voltage range for versatile applications
  • Compact TO-220 package for easy integration
  • Comprehensive protection features for enhanced reliability
  • Low standby power consumption for reduced energy waste

Disadvantages

  • Limited maximum output current of 1.5A
  • Relatively high switching frequency may require additional filtering

Working Principles

The VIPER35LE is an integrated switching regulator that utilizes a high-voltage startup circuit to generate the necessary power supply voltage. It employs a feedback loop to regulate the output voltage and a current sense mechanism for controlling the current limit. The device operates at a fixed switching frequency of 60kHz, ensuring efficient power conversion.

Detailed Application Field Plans

The VIPER35LE is commonly used in various applications, including:

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

Detailed and Complete Alternative Models

  1. VIPER26LD: Similar functionality with lower maximum output current (1A)
  2. VIPER50A: Higher maximum output current (2.5A) with similar features
  3. VIPER53SP: Enhanced protection features with adjustable output voltage

These alternative models provide options based on specific requirements and desired performance characteristics.

In conclusion, the VIPER35LE is a versatile power management IC that offers high efficiency, low standby power consumption, and comprehensive protection features. With its compact package and wide input voltage range, it finds applications in various fields such as consumer electronics, lighting systems, and industrial automation. While it has limitations in terms of maximum output current, there are alternative models available to suit different needs.

Liste 10 perguntas e respostas comuns relacionadas à aplicação de VIPER35LE em soluções técnicas

Sure! Here are 10 common questions and answers related to the application of VIPER35LE in technical solutions:

  1. Q: What is VIPER35LE? A: VIPER35LE 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 VIPER35LE? A: VIPER35LE features include high voltage startup, built-in protections, low standby power consumption, and high efficiency.

  3. Q: How does VIPER35LE help in technical solutions? A: VIPER35LE provides efficient power conversion, enabling reliable and stable power supply solutions for various applications.

  4. Q: Can VIPER35LE be used in both AC-DC and DC-DC applications? A: No, VIPER35LE is specifically designed for AC-DC applications, such as power adapters, chargers, LED lighting, and industrial power supplies.

  5. Q: What is the input voltage range supported by VIPER35LE? A: VIPER35LE supports an input voltage range from 85VAC to 265VAC, making it suitable for worldwide use.

  6. Q: Does VIPER35LE have any built-in protection features? A: Yes, VIPER35LE includes built-in protections like overvoltage protection (OVP), overload protection (OLP), and thermal shutdown.

  7. Q: Can VIPER35LE operate in a wide temperature range? A: Yes, VIPER35LE has a wide operating temperature range of -40°C to +150°C, allowing it to function reliably in various environments.

  8. Q: Is VIPER35LE compliant with safety standards? A: Yes, VIPER35LE complies with international safety standards such as UL, EN, and IEC, ensuring safe operation in technical solutions.

  9. Q: Can VIPER35LE be used in low-power applications? A: Yes, VIPER35LE has a low standby power consumption of less than 50mW, making it suitable for energy-efficient and low-power designs.

  10. Q: Are there any reference designs available for VIPER35LE? A: Yes, STMicroelectronics provides reference designs and application notes to assist engineers in implementing VIPER35LE in their technical solutions.

Please note that the answers provided here are general and may vary depending on specific use cases and requirements.