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LNK304PNAU - English Editing Encyclopedia Entry
Product Overview
Category: Integrated Circuit (IC)
Use: Power Management IC
Characteristics: - Low-cost, energy-efficient power conversion solution - Designed for offline flyback converters - Suitable for applications requiring output power up to 10 W - Provides accurate constant voltage (CV) and constant current (CC) regulation
Package: DIP-7C
Essence: The LNK304PNAU is a highly integrated power management IC that offers a cost-effective solution for offline flyback converters. It provides reliable and efficient power conversion for various applications.
Packaging/Quantity: The LNK304PNAU is typically available in reels of 2500 units.
Specifications
- Input Voltage Range: 85 VAC to 265 VAC
- Output Power: Up to 10 W
- Output Voltage: Configurable between 3.6 V and 28 V
- Frequency Range: 66 kHz to 132 kHz
- Maximum Duty Cycle: 72%
- Standby Power Consumption: <30 mW at 230 VAC input
Detailed Pin Configuration
The LNK304PNAU features the following pin configuration:
- Drain (D)
- Source (S)
- Feedback (F)
- Ground (GND)
- Control (C)
- Sense (SNS)
- Vcc (V)
Functional Features
- Accurate CV and CC regulation for stable output voltage and current
- Built-in frequency jittering for reduced EMI emissions
- Auto-restart protection for enhanced system reliability
- Line undervoltage lockout (UVLO) with hysteresis for improved performance during low line conditions
- Thermal shutdown protection to prevent overheating
Advantages and Disadvantages
Advantages: - Cost-effective solution for power management - High efficiency and energy-saving capabilities - Compact and easy to integrate into various applications - Reliable performance with built-in protection features
Disadvantages: - Limited output power capability (up to 10 W) - Not suitable for high-power applications
Working Principles
The LNK304PNAU operates on the principle of a flyback converter. It converts the input AC voltage into a regulated DC output voltage using a transformer, MOSFET, and control circuitry. The IC controls the switching of the MOSFET to regulate the output voltage and current according to the feedback received from the load.
Detailed Application Field Plans
The LNK304PNAU is commonly used in the following application fields:
- LED Lighting: Provides efficient power conversion for LED drivers in lighting systems.
- Home Appliances: Enables power management in various household appliances such as refrigerators, air conditioners, and washing machines.
- Industrial Equipment: Used in power supplies for industrial equipment like motor drives, control systems, and instrumentation.
- Consumer Electronics: Suitable for power management in devices such as set-top boxes, audio/video equipment, and gaming consoles.
Detailed and Complete Alternative Models
- LNK302PNAU: Similar functionality but lower output power capability (up to 5 W).
- LNK306PNAU: Higher output power capability (up to 20 W) with additional features for advanced power management applications.
- LNK305PNAU: Intermediate output power capability (up to 15 W) with enhanced protection features.
These alternative models provide options with varying power capabilities and additional functionalities to suit different application requirements.
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10 domande e risposte comuni relative all'applicazione di LNK304PNAU nelle soluzioni tecniche
Sure! Here are 10 common questions and answers related to the application of LNK304PNAU in technical solutions:
Q: What is LNK304PNAU? A: LNK304PNAU is an integrated offline switcher IC (integrated circuit) designed for low-power applications.
Q: What are the typical applications of LNK304PNAU? A: LNK304PNAU is commonly used in applications such as LED lighting, smart home devices, power adapters, and industrial controls.
Q: What is the input voltage range supported by LNK304PNAU? A: LNK304PNAU supports a wide input voltage range from 85VAC to 265VAC.
Q: What is the maximum output power that can be achieved with LNK304PNAU? A: The maximum output power depends on the specific design and external components used, but typically ranges from 3W to 15W.
Q: Does LNK304PNAU require an external MOSFET? A: No, LNK304PNAU integrates a high-voltage power MOSFET, eliminating the need for an external one.
Q: Can LNK304PNAU operate in a constant current mode? A: Yes, LNK304PNAU can be configured to operate in a constant current mode, making it suitable for driving LEDs.
Q: Is LNK304PNAU capable of providing overvoltage protection? A: Yes, LNK304PNAU includes built-in overvoltage protection to safeguard the connected load.
Q: What is the typical efficiency of LNK304PNAU? A: LNK304PNAU offers high efficiency, typically exceeding 80% in most applications.
Q: Does LNK304PNAU have built-in thermal protection? A: Yes, LNK304PNAU incorporates thermal shutdown protection to prevent overheating.
Q: Are there any evaluation boards or reference designs available for LNK304PNAU? A: Yes, Power Integrations, the manufacturer of LNK304PNAU, provides evaluation boards and reference designs that can help with the implementation of this IC in various applications.
Please note that these answers are general and may vary depending on specific design considerations and requirements. It is always recommended to refer to the datasheet and application notes provided by the manufacturer for detailed information.