LNK6417K

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management IC

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

Package: SMD (Surface Mount Device)

Essence: LNK6417K is a power management IC designed to provide efficient and reliable power supply solutions for various electronic devices.

Packaging/Quantity: LNK6417K is available in tape and reel packaging, with 2500 units per reel.

Specifications

Input Voltage Range: 85V AC to 265V AC
Output Voltage: 5V DC
Output Current: Up to 1A
Efficiency: >80%
Operating Temperature Range: -40°C to +125°C
Package Type: eSIP-7C

Detailed Pin Configuration

LNK6417K features the following pin configuration:

VDD: Power supply input
BP/M: Brownout/Mode selection pin
FB: Feedback pin for output voltage regulation
GND: Ground reference
D: Drain pin for primary side control
S: Source pin for primary side control
NC: No connection

Functional Features

Primary-side control eliminates the need for an optocoupler or secondary-side feedback circuitry.
Auto-restart feature ensures continuous operation even in the event of a fault condition.
Frequency jittering reduces EMI emissions.
Built-in protection features safeguard against over-temperature, over-voltage, and short-circuit conditions.

Advantages and Disadvantages

Advantages: - Simplified design due to primary-side control - Enhanced reliability with built-in protection features - Compact size allows for space-saving designs - Wide input voltage range enables global compatibility

Disadvantages: - Limited output current capacity (up to 1A) - Not suitable for high-power applications

Working Principles

LNK6417K utilizes primary-side control, where the power switch is located on the primary side of the transformer. This eliminates the need for an optocoupler or secondary-side feedback circuitry, simplifying the design and reducing component count. The IC regulates the output voltage by adjusting the duty cycle of the power switch based on the feedback received from the FB pin.

Detailed Application Field Plans

LNK6417K finds applications in various electronic devices that require efficient power management, such as: - LED lighting systems - Home appliances - Industrial equipment - Consumer electronics - Power adapters

Detailed and Complete Alternative Models

LNK6418K: Similar to LNK6417K but with higher output current capacity (up to 2A).
LNK6419K: Enhanced version with additional protection features and wider operating temperature range.
LNK6420K: High-power variant capable of delivering up to 5A output current.

These alternative models offer flexibility in choosing the appropriate power management IC based on specific application requirements.

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Noem 10 veelgestelde vragen en antwoorden met betrekking tot de toepassing van LNK6417K in technische oplossingen

Sure! Here are 10 common questions and answers related to the application of LNK6417K in technical solutions:

Q: What is LNK6417K? A: LNK6417K is a highly integrated offline switcher IC designed for low-power applications, offering high efficiency and excellent performance.
Q: What are the typical applications of LNK6417K? A: LNK6417K 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 LNK6417K? A: LNK6417K supports a wide input voltage range from 85VAC to 265VAC, making it suitable for global applications.
Q: Can LNK6417K operate in a constant current mode? A: Yes, LNK6417K can be configured to operate in a constant current mode, making it ideal for driving LED lighting applications.
Q: Does LNK6417K have built-in protection features? A: Yes, LNK6417K incorporates various protection features like over-temperature protection, output short-circuit protection, and open-loop protection.
Q: What is the maximum output power that LNK6417K can handle? A: LNK6417K can handle a maximum output power of up to 7.5W, depending on the specific application and thermal conditions.
Q: Is LNK6417K compatible with dimming functionality? A: Yes, LNK6417K can be easily integrated with dimming circuits to enable dimming functionality in lighting applications.
Q: Can LNK6417K operate in a wide temperature range? A: Yes, LNK6417K is designed to operate reliably in a wide temperature range from -40°C to 150°C.
Q: Does LNK6417K require an external heat sink for thermal management? A: In most low-power applications, LNK6417K does not require an external heat sink due to its high efficiency and built-in thermal protection.
Q: Are there any reference designs available for LNK6417K? A: Yes, Power Integrations provides reference designs and application notes that can help engineers implement LNK6417K in their technical solutions effectively.

Please note that the answers provided here are general and may vary depending on specific design requirements and application considerations.