LNK362DN

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management IC

Characteristics: - Low power consumption - High efficiency - Wide input voltage range - Over-temperature protection - Short-circuit protection

Package: DIP-7 (Dual In-line Package)

Essence: LNK362DN is a power management IC designed for low power applications. It provides efficient power conversion and protection features.

Packaging/Quantity: The LNK362DN is typically sold in reels containing 2500 units per reel.

Specifications

Input Voltage Range: 85V AC to 265V AC
Output Voltage: 5V DC
Output Current: Up to 200mA
Operating Temperature Range: -40°C to +150°C
Efficiency: Up to 85%
Standby Power Consumption: Less than 50mW

Detailed Pin Configuration

The LNK362DN has the following pin configuration:

VDD: Power supply input
BP/MODE: Feedback and control pin
GND: Ground reference
VOUT: Output voltage
NC: No connection
NC: No connection
FB: Feedback pin

Functional Features

Primary-side regulation (PSR) eliminates the need for an optocoupler or secondary feedback circuitry.
Auto-restart protection feature ensures continuous operation even in the event of a fault condition.
Frequency jittering reduces EMI emissions, enabling compliance with international standards.
Built-in over-temperature and short-circuit protection enhance system safety and reliability.
Low standby power consumption improves energy efficiency.

Advantages and Disadvantages

Advantages: - Simplified design due to primary-side regulation - Enhanced safety and reliability with built-in protection features - Reduced EMI emissions for compliance with international standards - Low standby power consumption for improved energy efficiency

Disadvantages: - Limited output current capacity (up to 200mA) - Not suitable for high-power applications

Working Principles

The LNK362DN utilizes primary-side regulation (PSR) to control the output voltage. This eliminates the need for an optocoupler or secondary feedback circuitry, simplifying the design and reducing component count. The IC operates in a quasi-resonant mode, which minimizes switching losses and improves overall efficiency.

When the input voltage is applied, the IC starts operating and generates the required output voltage. The feedback pin monitors the output voltage and adjusts the duty cycle of the internal switch accordingly to maintain a stable output. In case of a fault condition such as over-temperature or short-circuit, the IC enters auto-restart mode to ensure continuous operation.

Detailed Application Field Plans

The LNK362DN is commonly used in various low-power applications, including but not limited to: - Power supplies for consumer electronics - LED lighting systems - Battery chargers - Home automation devices - Industrial control systems

Detailed and Complete Alternative Models

LNK364DN: Similar to LNK362DN but with higher output current capacity (up to 400mA).
LNK363DN: Similar to LNK362DN but with additional protection features like brown-out detection.
LNK361DN: Similar to LNK362DN but optimized for lower power applications (up to 100mA).

These alternative models offer different specifications and features to cater to specific application requirements.

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Noem 10 veelgestelde vragen en antwoorden met betrekking tot de toepassing van LNK362DN in technische oplossingen

Sure! Here are 10 common questions and answers related to the application of LNK362DN in technical solutions:

Q: What is LNK362DN? A: LNK362DN is a highly integrated, energy-efficient offline switcher IC designed for low-power applications.
Q: What are the typical applications of LNK362DN? A: LNK362DN is commonly used in applications such as LED lighting, smart home devices, industrial controls, and consumer electronics.
Q: What is the input voltage range supported by LNK362DN? A: LNK362DN supports an input voltage range of 85VAC to 265VAC.
Q: What is the output power range that LNK362DN can handle? A: LNK362DN can handle output power ranging from a few watts up to 15 watts.
Q: Does LNK362DN require an external heat sink for cooling? A: No, LNK362DN is designed to operate without an external heat sink, making it suitable for space-constrained applications.
Q: Can LNK362DN operate in a wide temperature range? A: Yes, LNK362DN has a wide operating temperature range of -40°C to +150°C.
Q: Does LNK362DN have built-in protection features? A: Yes, LNK362DN incorporates various protection features like thermal shutdown, cycle-by-cycle current limit, and output short-circuit protection.
Q: Is LNK362DN compliant with safety standards? A: Yes, LNK362DN is compliant with international safety standards such as UL, CE, and IEC.
Q: Can LNK362DN be easily integrated into existing designs? A: Yes, LNK362DN is available in a compact package and can be easily integrated into existing designs with minimal changes.
Q: Are there any reference designs or application notes available for LNK362DN? A: Yes, the manufacturer provides reference designs and application notes that can help engineers in implementing LNK362DN in their projects.

Please note that these answers are general and may vary depending on specific requirements and use cases.