Specifications
| Attribute | Value |
| Package | Tube |
| Series | LinkSwitch®-CV |
| ProductStatus | Discontinued at Digi-Key |
| OutputIsolation | Isolated |
| InternalSwitch(s) | Yes |
| Voltage-Breakdown | 725V |
| Topology | Flyback |
| DutyCycle | 54% |
| Frequency-Switching | 100kHz |
| Power(Watts) | 9 W |
| FaultProtection | Current Limiting, Open Loop, Over Temperature, Short Circuit |
| OperatingTemperature | -40°C ~ 150°C (TJ) |
| Package/Case | 8-SOIC (0.154, 3.90mm Width), 7 Leads |
| SupplierDevicePackage | SO-8C |
Overview
Description
The LNK623DG is a component of the LinkSwitch-II series by Power Integrations, designed for off-line power supply applications. It is a highly integrated switching IC that provides a simple and efficient solution for low-power AC-DC converters, typically used in applications like chargers, adapters, and standby power supplies.
Key features of the LNK623DG include:
1. Integrated Controller and High-Voltage Power MOSFET: This reduces the need for external components, simplifying circuit design.
2. EcoSmart Technology: Ensures energy efficiency by minimizing standby power consumption, meeting various global energy standards.
3. Primary-Side Regulation (PSR): Eliminates the need for an optocoupler, reducing costs and improving reliability.
4. Supports Universal Input Voltage Range: Designed to handle a wide range of input voltages (85-265 VAC).
5. Protection Features: Includes over-temperature, over-current, and over-voltage protection to enhance circuit robustness.
Overall, the LNK623DG offers a compact, cost-effective, and energy-efficient solution for low-power applications, streamlining the design and manufacturing of electronic devices.
Key features of the LNK623DG include:
1. Integrated Controller and High-Voltage Power MOSFET: This reduces the need for external components, simplifying circuit design.
2. EcoSmart Technology: Ensures energy efficiency by minimizing standby power consumption, meeting various global energy standards.
3. Primary-Side Regulation (PSR): Eliminates the need for an optocoupler, reducing costs and improving reliability.
4. Supports Universal Input Voltage Range: Designed to handle a wide range of input voltages (85-265 VAC).
5. Protection Features: Includes over-temperature, over-current, and over-voltage protection to enhance circuit robustness.
Overall, the LNK623DG offers a compact, cost-effective, and energy-efficient solution for low-power applications, streamlining the design and manufacturing of electronic devices.
Equivalent
The LNK623DG is a part of the LinkSwitch-TN series by Power Integrations, designed for low-power, non-isolated switching power supplies. Equivalent products might include:
1. Power Integrations LNK304 series
2. ON Semiconductor NCP101x series
3. STMicroelectronics VIPer0P series
4. Infineon’s ICE5x series
These alternatives can vary in specifications, so reviewing datasheets for compatibility in your application is important.
1. Power Integrations LNK304 series
2. ON Semiconductor NCP101x series
3. STMicroelectronics VIPer0P series
4. Infineon’s ICE5x series
These alternatives can vary in specifications, so reviewing datasheets for compatibility in your application is important.
Features
The LNK623DG is a member of the LinkSwitch-II family of ICs from Power Integrations, designed for power supply applications. Key features include:
1. High Efficiency: Uses an integrated 650V MOSFET, which allows for efficient power conversion and minimal heat generation.
2. Supports Non-Isolated Designs: Ideal for applications requiring non-isolated power supplies, such as LED drivers and adapters.
3. Low Component Count: Reduces the number of external components needed, simplifying design and reducing cost.
4. Enhanced Protection Features: Includes over-temperature protection, over-current protection, and auto-restart for fault conditions to enhance reliability.
5. Accurate Output Voltage Regulation: Provides precise control of output voltage and current, improving performance in applications.
6. Wide Input Voltage Range: Operates efficiently across a wide range of input voltages, suitable for global applications.
7. EcoSmart Technology: Minimizes power consumption during standby, complying with energy efficiency standards.
These features make the LNK623DG suitable for multiple low-power applications, particularly where size, efficiency, and reliability are critical.
1. High Efficiency: Uses an integrated 650V MOSFET, which allows for efficient power conversion and minimal heat generation.
2. Supports Non-Isolated Designs: Ideal for applications requiring non-isolated power supplies, such as LED drivers and adapters.
3. Low Component Count: Reduces the number of external components needed, simplifying design and reducing cost.
4. Enhanced Protection Features: Includes over-temperature protection, over-current protection, and auto-restart for fault conditions to enhance reliability.
5. Accurate Output Voltage Regulation: Provides precise control of output voltage and current, improving performance in applications.
6. Wide Input Voltage Range: Operates efficiently across a wide range of input voltages, suitable for global applications.
7. EcoSmart Technology: Minimizes power consumption during standby, complying with energy efficiency standards.
These features make the LNK623DG suitable for multiple low-power applications, particularly where size, efficiency, and reliability are critical.
Pinout
The LNK623DG is a member of the LinkSwitch-II series by Power Integrations, designed for use in low-power applications like chargers and adapters. It typically comes in an SO-8 package, featuring 7 pins. The key functions of these pins are as follows:
1. D (Drain): This pin is connected to the internal power MOSFET drain. It is used for high-voltage start-up and power switching.
2. S (Source): The source pin serves as the return path for the primary current and is internally connected to the MOSFET source.
3. BP (Bypass): This pin connects to an external capacitor, providing a regulated voltage source for internal circuitry.
4. FB (Feedback): The feedback pin is used for output voltage regulation and is connected to an optocoupler in isolated designs.
The LNK623DG is engineered to deliver high efficiency and reliability, featuring integrated functions like current limiting, over-temperature protection, and auto-restart for overload protection, suitable for compact and energy-efficient power supply designs.
1. D (Drain): This pin is connected to the internal power MOSFET drain. It is used for high-voltage start-up and power switching.
2. S (Source): The source pin serves as the return path for the primary current and is internally connected to the MOSFET source.
3. BP (Bypass): This pin connects to an external capacitor, providing a regulated voltage source for internal circuitry.
4. FB (Feedback): The feedback pin is used for output voltage regulation and is connected to an optocoupler in isolated designs.
The LNK623DG is engineered to deliver high efficiency and reliability, featuring integrated functions like current limiting, over-temperature protection, and auto-restart for overload protection, suitable for compact and energy-efficient power supply designs.
Manufacturer
The LNK623DG is manufactured by Power Integrations, Inc. Power Integrations is a semiconductor company that specializes in developing and manufacturing high-performance components used in high-voltage power conversion. Their products are primarily used in AC-DC power supplies, LED lighting, and motor drive applications. The company is known for its focus on energy-efficient and reliable products, often serving markets such as consumer electronics, communications, industrial, and renewable energy. Power Integrations is recognized for its innovative technologies that enable compact, efficient, and environmentally friendly power solutions.
Application
The LNK623DG is a highly integrated switch-mode power supply IC, commonly used in various applications due to its efficiency and compact size. Its primary application areas include:
1. LED Drivers: Used in low-power LED lighting solutions.
2. Charger Circuits: Suitable for low-power battery charger applications.
3. Standby Power Supplies: Employed in appliances to maintain low power consumption in standby mode.
4. Consumer Electronics: Used in small appliances and gadgets for efficient power management.
5. Smart Meters and IoT Devices: Provides power in smart grid and IoT applications with minimal energy waste.
Its versatility makes it ideal for any application requiring efficient, low-power AC-DC conversion.
1. LED Drivers: Used in low-power LED lighting solutions.
2. Charger Circuits: Suitable for low-power battery charger applications.
3. Standby Power Supplies: Employed in appliances to maintain low power consumption in standby mode.
4. Consumer Electronics: Used in small appliances and gadgets for efficient power management.
5. Smart Meters and IoT Devices: Provides power in smart grid and IoT applications with minimal energy waste.
Its versatility makes it ideal for any application requiring efficient, low-power AC-DC conversion.
Package
The LNK623DG is a power IC from Power Integrations, typically used for energy-efficient power conversion. It comes in an SO-8 (Small Outline) surface-mount package, which is a standard IC package type known for its compact size and is widely used in consumer electronics for space-saving designs.
