Specifications
| Attribute | Value |
| Package | Tube |
| Series | LinkSwitch®-TN |
| ProductStatus | Discontinued at Digi-Key |
| OutputIsolation | Non-Isolated |
| InternalSwitch(s) | Yes |
| Voltage-Breakdown | 700V |
| Topology | Buck, Buck-Boost, Flyback |
| DutyCycle | 69% |
| Frequency-Switching | 66kHz |
| FaultProtection | Current Limiting, Open Loop, Over Temperature, Short Circuit |
| OperatingTemperature | -40°C ~ 150°C (TJ) |
| Package/Case | 8-SMD (7 Leads), Gull Wing |
| SupplierDevicePackage | SMD-8B |
Overview
Description
The LNK304GN is a member of the LinkSwitch-TN family of integrated circuits, designed to simplify the development of low-power offline switch-mode power supplies. It combines a high-voltage power MOSFET and a controller into a single package, enabling efficient power conversion in a compact form.
Key features of the LNK304GN include:
1. Monolithic Design: Incorporates a 700V power MOSFET, oscillator, high-voltage switching current source, and thermal shutdown circuitry.
2. Efficiency: Achieves high efficiency across a wide load range, minimizing energy consumption.
3. Low Component Count: Requires fewer external components, simplifying circuit design and reducing cost.
4. Constant Current Operation: Provides a constant output current, suitable for LED drivers and battery chargers.
5. Protection Features: Includes short-circuit, over-temperature, and over-voltage protection, enhancing reliability.
This IC is ideal for low-power applications such as appliance controls, industrial controls, and chargers. Its compact design and robust protection mechanisms make it a versatile choice for developers seeking to create energy-efficient power solutions.
Key features of the LNK304GN include:
1. Monolithic Design: Incorporates a 700V power MOSFET, oscillator, high-voltage switching current source, and thermal shutdown circuitry.
2. Efficiency: Achieves high efficiency across a wide load range, minimizing energy consumption.
3. Low Component Count: Requires fewer external components, simplifying circuit design and reducing cost.
4. Constant Current Operation: Provides a constant output current, suitable for LED drivers and battery chargers.
5. Protection Features: Includes short-circuit, over-temperature, and over-voltage protection, enhancing reliability.
This IC is ideal for low-power applications such as appliance controls, industrial controls, and chargers. Its compact design and robust protection mechanisms make it a versatile choice for developers seeking to create energy-efficient power solutions.
Equivalent
The LNK304GN is a Power Integrations IC used for low-power offline switcher applications. Equivalent products may include similar low-power switcher ICs from other manufacturers, such as:
1. TinySwitch series from Power Integrations, like TNY274PN.
2. TOPSwitch series from Power Integrations.
3. NCP1014 from ON Semiconductor.
4. VIPer12A from STMicroelectronics.
It's important to check the specifications to ensure compatibility with your application.
1. TinySwitch series from Power Integrations, like TNY274PN.
2. TOPSwitch series from Power Integrations.
3. NCP1014 from ON Semiconductor.
4. VIPer12A from STMicroelectronics.
It's important to check the specifications to ensure compatibility with your application.
Features
The LNK304GN is a highly integrated monolithic switching power supply IC designed for off-line low power applications. Key features include:
1. High-Efficiency: It utilizes a high-voltage power MOSFET with ON/OFF control, minimizing power consumption.
2. Integrated Functions: Includes a 700V power MOSFET, oscillator, high voltage switched current source, current limit, and thermal shutdown circuitry.
3. Low Component Count: Reduces total cost and design complexity by minimizing the number of external components required.
4. Wide Input Voltage Range: Supports a broad range of input voltages, making it suitable for global applications.
5. Accurate Output Voltage: Provides a stable output voltage thanks to its internal feedback compensation.
6. Protection Features: Offers over-temperature protection, over-current protection, and output short-circuit protection.
7. Compact Package: Available in a small 8-pin DIP or SMD package, ideal for space-constrained applications.
8. No Load Consumption: Designed to consume minimal power under no-load conditions, enhancing energy efficiency.
These features make the LNK304GN suitable for applications such as chargers, adapters, and standby power supplies.
1. High-Efficiency: It utilizes a high-voltage power MOSFET with ON/OFF control, minimizing power consumption.
2. Integrated Functions: Includes a 700V power MOSFET, oscillator, high voltage switched current source, current limit, and thermal shutdown circuitry.
3. Low Component Count: Reduces total cost and design complexity by minimizing the number of external components required.
4. Wide Input Voltage Range: Supports a broad range of input voltages, making it suitable for global applications.
5. Accurate Output Voltage: Provides a stable output voltage thanks to its internal feedback compensation.
6. Protection Features: Offers over-temperature protection, over-current protection, and output short-circuit protection.
7. Compact Package: Available in a small 8-pin DIP or SMD package, ideal for space-constrained applications.
8. No Load Consumption: Designed to consume minimal power under no-load conditions, enhancing energy efficiency.
These features make the LNK304GN suitable for applications such as chargers, adapters, and standby power supplies.
Pinout
The LNK304GN is a monolithic switching power supply IC from Power Integrations, commonly used in low-power applications. It is part of the LinkSwitch-TN family. The IC typically comes in an SMD package and features a total of 7 pins.
Key pin functions include:
1. D (Drain): Connected to the input voltage source, it is the main power switch pin.
2. S (Source): Ground reference for the IC, typically connected to the return path of the input voltage.
3. BP (Bypass): Decoupling pin for the internal circuitry; connected to a capacitor to ensure stable operation.
4. EN (Enable): Acts as a feedback pin; used to enable or disable the switching operation based on the load requirements.
The LNK304GN is designed for high efficiency and low standby power consumption, ideal for applications like small power adapters or chargers. It integrates features such as over-temperature protection and current limiting to enhance reliability.
Key pin functions include:
1. D (Drain): Connected to the input voltage source, it is the main power switch pin.
2. S (Source): Ground reference for the IC, typically connected to the return path of the input voltage.
3. BP (Bypass): Decoupling pin for the internal circuitry; connected to a capacitor to ensure stable operation.
4. EN (Enable): Acts as a feedback pin; used to enable or disable the switching operation based on the load requirements.
The LNK304GN is designed for high efficiency and low standby power consumption, ideal for applications like small power adapters or chargers. It integrates features such as over-temperature protection and current limiting to enhance reliability.
Manufacturer
The LNK304GN is manufactured by Power Integrations, Inc. Power Integrations is a semiconductor company that specializes in designing and manufacturing high-performance electronic components used primarily in high-voltage power conversion. Their products are integral in applications such as power supplies for appliances, smart adapters, LED lighting, and industrial systems. The company's innovations focus on increasing energy efficiency and reducing electronic waste, aligning with global trends towards more sustainable technologies.
Application
The LNK304GN is a monolithic off-line switcher IC designed for low-power applications. Its primary application areas include:
1. LED Drivers: Used in low-power LED lighting solutions due to its energy efficiency and low standby power consumption.
2. Battery Chargers: Suitable for charging small batteries in portable devices, offering efficient power conversion.
3. Standby Power Supplies: Ideal for providing standby power in appliances and consumer electronics.
4. Small Power Adapters: Utilized in compact AC-DC adapters for devices such as mobile phones and small electronic gadgets.
5. Home Appliances: Implemented in low-power sections of appliances like washing machines and microwave ovens for efficient power management.
These applications leverage the LNK304GN for its simplicity, low component count, and high efficiency.
1. LED Drivers: Used in low-power LED lighting solutions due to its energy efficiency and low standby power consumption.
2. Battery Chargers: Suitable for charging small batteries in portable devices, offering efficient power conversion.
3. Standby Power Supplies: Ideal for providing standby power in appliances and consumer electronics.
4. Small Power Adapters: Utilized in compact AC-DC adapters for devices such as mobile phones and small electronic gadgets.
5. Home Appliances: Implemented in low-power sections of appliances like washing machines and microwave ovens for efficient power management.
These applications leverage the LNK304GN for its simplicity, low component count, and high efficiency.
Package
The LNK304GN is part of the Power Integrations LinkSwitch-TN series, and it is typically available in an 8-pin surface-mount package known as SMD-8 (Surface Mounted Device). This package type is suitable for compact electronic applications, providing efficient power conversion with minimal external components.
