VIPER25LD
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: 4.5V to 30V
- Output Voltage Range: 3.3V to 28V
- Maximum Output Current: 0.7A
- Switching Frequency: 60kHz to 200kHz
- Operating Temperature Range: -40°C to +150°C
Detailed Pin Configuration
The VIPER25LD has the following pin configuration:
- VCC: Supply voltage input
- GND: Ground reference
- FB: Feedback pin for output voltage regulation
- CS: Current sense pin for current limiting
- COMP: Compensation pin for stability control
- DRAIN: Drain pin for switching transistor
- SOURCE: Source pin for switching transistor
Functional Features
- Integrated high-voltage startup
- Built-in protections against overvoltage, overcurrent, and overtemperature
- Low standby power consumption in burst mode operation
- Adjustable output voltage through external resistors
- Soft-start function for controlled startup
Advantages and Disadvantages
Advantages
- High efficiency leading to reduced power dissipation
- Wide input voltage range allows for versatile applications
- Compact TO-220 package for easy integration
- Comprehensive built-in protection features ensure system reliability
Disadvantages
- Limited maximum output current of 0.7A
- Relatively low switching frequency compared to some alternatives
- Higher cost compared to non-integrated solutions
Working Principles
The VIPER25LD is an integrated switching regulator that utilizes a high-voltage startup circuit to generate the necessary power supply for its internal control circuitry. It operates by converting the input voltage into a regulated output voltage through a series of switching cycles. The device incorporates various protection mechanisms to safeguard against overvoltage, overcurrent, and overtemperature conditions.
Detailed Application Field Plans
The VIPER25LD is commonly used in applications requiring voltage regulation, such as:
- Power supplies for consumer electronics
- Industrial automation systems
- LED lighting solutions
- Battery chargers
- Automotive electronics
Detailed and Complete Alternative Models
- VIPER26LD: Similar specifications with higher maximum output current of 1A
- VIPER27LD: Similar specifications with wider input voltage range up to 35V
- VIPER28LD: Similar specifications with higher switching frequency up to 300kHz
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技術ソリューションにおける VIPER25LD の適用に関連する 10 件の一般的な質問と回答をリストします。
Sure! Here are 10 common questions and answers related to the application of VIPER25LD in technical solutions:
Q: What is VIPER25LD? A: VIPER25LD is a high-voltage converter IC designed for offline flyback converters, commonly used in power supply applications.
Q: What is the input voltage range of VIPER25LD? A: The input voltage range of VIPER25LD is typically between 85V and 265V AC.
Q: What is the output power range supported by VIPER25LD? A: VIPER25LD supports an output power range of up to 8W, making it suitable for various low-power applications.
Q: Can VIPER25LD be used in both isolated and non-isolated power supplies? A: Yes, VIPER25LD can be used in both isolated and non-isolated power supply designs.
Q: Does VIPER25LD have built-in protection features? A: Yes, VIPER25LD incorporates several protection features such as overvoltage protection (OVP), overload protection (OLP), and thermal shutdown.
Q: What is the switching frequency of VIPER25LD? A: The switching frequency of VIPER25LD is typically around 60 kHz, but it can be adjusted using external components.
Q: Can VIPER25LD operate in continuous or discontinuous mode? A: VIPER25LD can operate in both continuous and discontinuous conduction mode, depending on the design requirements.
Q: Is VIPER25LD compatible with dimmable LED lighting applications? A: Yes, VIPER25LD can be used in dimmable LED lighting applications, providing efficient and reliable power conversion.
Q: What are the typical efficiency levels achieved with VIPER25LD? A: VIPER25LD can achieve high efficiency levels, typically above 85%, ensuring minimal power losses in the conversion process.
Q: Are there any reference designs available for VIPER25LD? A: Yes, STMicroelectronics provides reference designs and application notes to assist engineers in implementing VIPER25LD in their designs.
Please note that the answers provided here are general and may vary depending on specific design considerations and requirements.