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TOP252EG
Product Overview
- Category: Integrated Circuit (IC)
- Use: Power Management
- Characteristics: High Efficiency, Low Standby Power, Wide Input Voltage Range
- Package: TO-220
- Essence: Switching Power Supply Controller
- Packaging/Quantity: Tray, 50 pieces per tray
Specifications
- Input Voltage Range: 85VAC to 265VAC
- Output Power: Up to 94W
- Switching Frequency: 132 kHz to 150 kHz
- Operating Temperature Range: -40°C to +125°C
- Protection Features: Overload Protection, Overvoltage Protection, Overtemperature Protection
Detailed Pin Configuration
- VCC: Power Supply Voltage
- FB: Feedback Pin for Output Voltage Regulation
- COMP: Compensation Pin for Loop Stability
- CS: Current Sense Pin for Current Limiting
- GND: Ground Reference
- DRAIN: Switching Transistor Drain Connection
- SOURCE: Switching Transistor Source Connection
- RT/CT: Timing Resistor and Capacitor Connection for Oscillator Frequency Control
Functional Features
- Integrated high-voltage power MOSFET
- Built-in frequency jittering for reduced EMI emissions
- Auto-restart protection for fault conditions
- Cycle-by-cycle current limit
- Adjustable output voltage
- Soft-start for controlled startup
Advantages
- High efficiency leading to energy savings
- Low standby power consumption
- Wide input voltage range for universal compatibility
- Compact TO-220 package for easy integration
- Comprehensive protection features for enhanced reliability
Disadvantages
- Requires external components for complete power supply implementation
- Limited output power compared to some other models in the same category
Working Principles
TOP252EG is a switching power supply controller that utilizes a flyback topology to convert high-voltage AC input into low-voltage DC output. It operates by controlling the switching transistor to regulate the output voltage and current. The integrated high-voltage power MOSFET ensures efficient power conversion. The frequency jittering feature reduces electromagnetic interference (EMI) emissions, while the auto-restart protection ensures safe operation in fault conditions.
Detailed Application Field Plans
- Consumer Electronics: Power adapters for laptops, TVs, and gaming consoles
- Industrial Equipment: Power supplies for industrial automation systems
- Lighting: LED drivers for residential and commercial lighting applications
- Telecommunications: Power management for telecom infrastructure equipment
Detailed and Complete Alternative Models
- TOP243EG: Similar specifications and features, but lower output power capability
- TOP254EG: Higher output power capability, suitable for more demanding applications
- TOP255EG: Integrated power MOSFET with improved efficiency and thermal performance
Note: This entry provides a brief overview of TOP252EG. For detailed technical information, please refer to the product datasheet or consult the manufacturer.
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10 domande e risposte comuni relative all'applicazione di TOP252EG nelle soluzioni tecniche
Sure! Here are 10 common questions and answers related to the application of TOP252EG in technical solutions:
Q: What is TOP252EG? A: TOP252EG is a high-performance integrated switcher used for offline power conversion applications.
Q: What are the typical applications of TOP252EG? A: TOP252EG is commonly used in applications such as power supplies, LED lighting, industrial controls, and consumer electronics.
Q: What is the input voltage range supported by TOP252EG? A: The input voltage range of TOP252EG is typically between 85VAC and 265VAC.
Q: What is the output power range that TOP252EG can handle? A: TOP252EG can handle output power ranging from a few watts up to around 100 watts, depending on the specific design and thermal considerations.
Q: Does TOP252EG require an external MOSFET? A: Yes, TOP252EG requires an external MOSFET to function properly. It is designed to work with an N-channel MOSFET.
Q: Can TOP252EG operate in a wide temperature range? A: Yes, TOP252EG is designed to operate reliably in a wide temperature range, typically from -40°C to 150°C.
Q: What are the key features of TOP252EG? A: Some key features of TOP252EG include primary-side regulation, frequency jittering for low EMI, cycle-by-cycle current limit, and auto-restart protection.
Q: How does TOP252EG achieve primary-side regulation? A: TOP252EG uses a proprietary control method called EcoSmart™ technology to achieve primary-side regulation, eliminating the need for an optocoupler or secondary-side feedback circuitry.
Q: Can TOP252EG provide multiple output voltages? A: Yes, TOP252EG can be used in designs that require multiple output voltages by using additional secondary-side regulation or post-regulation techniques.
Q: Is TOP252EG compliant with safety and regulatory standards? A: Yes, TOP252EG is designed to meet various safety and regulatory standards such as UL, CE, and EN55022 Class B for conducted EMI.
Please note that the answers provided here are general and may vary depending on specific design considerations and requirements.