LNK6404D

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: DIP-8 (Dual In-line Package 8)

Essence: LNK6404D is a power management IC designed to provide efficient and reliable power conversion for various electronic devices.

Packaging/Quantity: The LNK6404D is typically packaged in reels containing 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 +150°C

Detailed Pin Configuration

The LNK6404D features the following pin configuration:

VDD: Power supply input
BP/M: Brownout/Modulation input
FB: Feedback input
GND: Ground
D: Drain
S: Source
NC: No Connection
VOUT: Output voltage

Functional Features

Primary-side control eliminates the need for an optocoupler
Built-in frequency jittering for reduced EMI emissions
Auto-restart protection for fault conditions
Cycle-by-cycle current limit protection
Accurate output voltage regulation

Advantages and Disadvantages

Advantages: - High efficiency leads to energy savings - Compact size allows for space-saving designs - Wide input voltage range enables global compatibility - Over-temperature, over-voltage, and short-circuit protection enhance reliability

Disadvantages: - Limited output current capacity (up to 1A) - Requires external components for complete power supply design

Working Principles

The LNK6404D utilizes primary-side control, which eliminates the need for an optocoupler and simplifies the circuit design. It operates by regulating the energy transfer between the input and output sides through a transformer. The IC controls the switching of the power MOSFET to achieve the desired output voltage and current.

Detailed Application Field Plans

The LNK6404D is commonly used in various applications, including but not limited to: - Power adapters - LED lighting - Home appliances - Industrial equipment - Consumer electronics

Detailed and Complete Alternative Models

LNK6404E: Similar specifications and features as LNK6404D, but with extended temperature range (-40°C to +175°C).
LNK6404G: Higher output current capacity (up to 2A) while maintaining similar characteristics and package.

These alternative models provide flexibility in choosing the most suitable power management IC based on specific application requirements.

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技術ソリューションにおける LNK6404D 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 LNK6404D in technical solutions:

Q: What is LNK6404D? A: LNK6404D is a highly integrated offline switcher IC designed for low-power applications, providing accurate constant voltage (CV) and constant current (CC) regulation.
Q: What are the typical applications of LNK6404D? A: LNK6404D is commonly used in LED lighting, smart home devices, industrial controls, and other low-power applications requiring efficient power conversion.
Q: What is the input voltage range supported by LNK6404D? A: LNK6404D supports a wide input voltage range from 85VAC to 265VAC, making it suitable for global use.
Q: Can LNK6404D provide multiple output voltages? A: No, LNK6404D is designed to provide a single output voltage. If multiple output voltages are required, additional circuitry or multiple LNK6404D ICs can be used.
Q: How does LNK6404D achieve high efficiency? A: LNK6404D utilizes advanced primary-side control technology, eliminating the need for an optocoupler and secondary-side feedback components, resulting in higher efficiency.
Q: Does LNK6404D have built-in protection features? A: Yes, LNK6404D incorporates various protection features such as over-temperature protection (OTP), output short-circuit protection (SCP), and output over-voltage protection (OVP).
Q: Can LNK6404D operate in a dimming mode for LED lighting applications? A: Yes, LNK6404D can support dimming functionality by using external components such as a PWM controller or a dedicated dimming circuit.
Q: What is the maximum output power that LNK6404D can handle? A: The maximum output power of LNK6404D depends on the specific application and thermal considerations. It is recommended to refer to the datasheet and design guidelines for accurate power calculations.
Q: Is LNK6404D suitable for battery-powered applications? A: LNK6404D is primarily designed for offline applications and requires an AC input. It may not be suitable for battery-powered applications without additional power conversion circuitry.
Q: Are there any reference designs available for LNK6404D? A: Yes, Power Integrations provides reference designs and application notes for LNK6404D, which can serve as a starting point for designing various technical solutions.

Please note that these answers are general and it's always recommended to refer to the official documentation and datasheets for accurate information regarding LNK6404D and its specific applications.