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TOP247F
Product Overview
- Category: Power Management IC
- Use: Power supply controller
- Characteristics: High efficiency, compact size, wide input voltage range
- Package: TO-220, TO-263, and eSIP-7C
- Essence: Integrated switcher for offline power supplies
- Packaging/Quantity: Available in tape and reel packaging, quantity varies based on supplier
Specifications
- Input Voltage Range: 85VAC to 265VAC
- Output Power: Up to 100W
- Frequency Range: 50Hz to 60Hz
- Efficiency: Up to 90%
- Operating Temperature Range: -40°C to +150°C
Detailed Pin Configuration
The TOP247F has a total of seven pins:
- VSENSE: Voltage feedback pin
- FB: Feedback pin for output regulation
- GND: Ground reference pin
- DRAIN: Switching transistor drain connection
- SOURCE: Switching transistor source connection
- BP/MODE: Bootstrap capacitor connection or frequency selection pin
- VCC: Supply voltage input pin
Functional Features
- Integrated high-voltage power MOSFET
- Auto-restart protection for overvoltage and open-loop faults
- Frequency jittering for reduced EMI
- Cycle-by-cycle current limit
- Line undervoltage lockout with hysteresis
- Overtemperature protection
Advantages and Disadvantages
Advantages: - High efficiency leading to energy savings - Compact size allows for space-saving designs - Wide input voltage range enables global compatibility - Comprehensive protection features ensure system reliability
Disadvantages: - Limited output power compared to higher-rated devices - Higher cost compared to some alternative models
Working Principles
The TOP247F is an integrated switcher designed for offline power supplies. It operates by converting high-voltage AC input into a regulated DC output. The device utilizes a high-voltage power MOSFET to switch the input voltage at high frequency, which is then rectified and filtered to provide a stable DC output.
Detailed Application Field Plans
The TOP247F is commonly used in various applications, including: - Power adapters - LED lighting - Audio equipment - Industrial power supplies - Consumer electronics
Detailed and Complete Alternative Models
Some alternative models that can be considered as alternatives to the TOP247F are: - TOP248Y - LNK364PN - UC3843B - NCP1200P60
These models offer similar functionality and can be suitable replacements depending on specific requirements.
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Liste 10 perguntas e respostas comuns relacionadas à aplicação de TOP247F em soluções técnicas
Sure! Here are 10 common questions and answers related to the application of TOP247F in technical solutions:
Q: What is TOP247F? A: TOP247F is a highly integrated offline switcher IC (integrated circuit) that provides high-performance power conversion for a wide range of applications.
Q: What are the typical applications of TOP247F? A: TOP247F is commonly used in various technical solutions such as power supplies, LED lighting, industrial controls, and consumer electronics.
Q: What is the input voltage range supported by TOP247F? A: TOP247F supports a wide input voltage range from 85VAC to 265VAC, making it suitable for global applications.
Q: Can TOP247F handle high power loads? A: Yes, TOP247F is designed to handle high power loads with its built-in features like overcurrent protection and thermal shutdown.
Q: Does TOP247F require an external MOSFET? A: Yes, TOP247F requires an external MOSFET to control the switching operation efficiently.
Q: Is TOP247F compatible with dimming functionality for LED lighting applications? A: Yes, TOP247F can be used with additional circuitry to enable dimming functionality in LED lighting applications.
Q: What are the advantages of using TOP247F in power supply designs? A: TOP247F offers advantages like high efficiency, low standby power consumption, and excellent load regulation, making it ideal for power supply designs.
Q: Can TOP247F operate in a wide temperature range? A: Yes, TOP247F has a wide operating temperature range of -40°C to +150°C, ensuring reliable performance in various environments.
Q: Does TOP247F have built-in protection features? A: Yes, TOP247F incorporates various protection features like overvoltage protection, undervoltage lockout, and overtemperature protection.
Q: Are there any reference designs available for TOP247F? A: Yes, Power Integrations, the manufacturer of TOP247F, provides reference designs and application notes to assist in implementing TOP247F in different technical solutions.
Please note that these questions and answers are general and may vary depending on specific applications and requirements.