LNK364DN
Product Overview
Category: Integrated Circuit (IC)
Use: Power Management
Characteristics: - Low power consumption - High efficiency - Wide input voltage range - Over-temperature protection - Over-voltage protection - Over-current protection
Package: DIP-7 (Dual In-line Package)
Essence: LNK364DN is a highly integrated power management IC designed for offline switch mode power supplies (SMPS). It provides reliable and efficient power conversion for various applications.
Packaging/Quantity: LNK364DN is typically sold in reels containing 2500 units.
Specifications
- Input Voltage Range: 85V AC to 265V AC
- Output Power: Up to 10W
- Switching Frequency: 132 kHz
- Operating Temperature Range: -40°C to +150°C
- Standby Power Consumption: Less than 50mW
Detailed Pin Configuration
- VDD: Power supply voltage input
- BP/M: Bypass/Multifunction pin
- FB: Feedback pin for output voltage regulation
- GND: Ground reference
- D: Drain pin for primary side MOSFET
- S: Source pin for primary side MOSFET
- CS: Current sense pin for current limit control
Functional Features
- Primary-side control eliminates the need for an optocoupler and secondary-side feedback components, reducing cost and complexity.
- Auto-restart feature ensures continuous operation even in the event of a fault condition.
- Built-in protection features such as over-temperature, over-voltage, and over-current protection enhance system reliability.
- Green-mode function reduces standby power consumption, making it suitable for energy-efficient applications.
Advantages and Disadvantages
Advantages: - Simplified circuit design due to primary-side control - High efficiency and low power consumption - Wide input voltage range allows for universal compatibility - Integrated protection features enhance system reliability - Green-mode function reduces standby power consumption
Disadvantages: - Limited output power capability (up to 10W) - Requires careful consideration of thermal management due to high operating temperature range
Working Principles
LNK364DN utilizes a primary-side control technique, where the feedback signal is derived from the primary side of the transformer. This eliminates the need for an optocoupler and secondary-side feedback components, reducing cost and complexity. The IC regulates the output voltage by adjusting the duty cycle of the internal MOSFET switch based on the feedback signal.
The device operates in a quasi-resonant mode, which minimizes switching losses and improves overall efficiency. It incorporates various protection mechanisms such as over-temperature, over-voltage, and over-current protection to ensure safe operation under different conditions.
Detailed Application Field Plans
LNK364DN is widely used in various applications, including but not limited to: - AC/DC adapters - LED lighting - Set-top boxes - Home appliances - Industrial power supplies
Detailed and Complete Alternative Models
Some alternative models that can be considered as alternatives to LNK364DN are: - TNY364PN - TOP264VG - FSDM0365RN - STR-W6754
These models offer similar functionality and can be suitable replacements depending on specific application requirements.
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技術ソリューションにおける LNK364DN 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 LNK364DN in technical solutions:
Q: What is LNK364DN? A: LNK364DN is a highly integrated, energy-efficient offline switcher IC (integrated circuit) designed for low-power applications.
Q: What are the typical applications of LNK364DN? A: LNK364DN is commonly used in various low-power applications such as LED lighting, smart home devices, industrial controls, and consumer electronics.
Q: What is the input voltage range supported by LNK364DN? A: LNK364DN supports a wide input voltage range from 85V AC to 265V AC, making it suitable for global applications.
Q: Can LNK364DN operate in a flyback topology? A: Yes, LNK364DN can be used in a flyback topology, which is commonly employed in low-power offline power supplies.
Q: Does LNK364DN have built-in protection features? A: Yes, LNK364DN incorporates several protection features including output overvoltage protection, output short-circuit protection, and thermal shutdown.
Q: What is the maximum output power that LNK364DN can handle? A: LNK364DN can handle a maximum output power of up to 7.5W, depending on the specific application and design considerations.
Q: Is LNK364DN compatible with dimming functionality for LED lighting applications? A: Yes, LNK364DN can be easily integrated with external components to enable dimming functionality in LED lighting applications.
Q: What is the efficiency of LNK364DN? A: LNK364DN offers high efficiency, typically above 80%, which helps to minimize power losses and improve overall energy efficiency.
Q: Can LNK364DN operate in a wide temperature range? A: Yes, LNK364DN is designed to operate reliably in a wide temperature range, typically from -40°C to 150°C.
Q: Are there any reference designs available for LNK364DN? A: Yes, Power Integrations, the manufacturer of LNK364DN, provides various reference designs and application notes to assist engineers in implementing the IC effectively in their designs.
Please note that these answers are general and may vary depending on specific design requirements and application considerations.