LNK625DG

Images are for reference only

LNK625DG

+BOM

IC OFFLINE SWITCH FLYBACK 8SO

  • ManufacturerPower Integrations

  • Mfr. Part #LNK625DG

  • Package SO-8C

  • In Stock6330

365 Days Quality Guarantee

7*24 hours service quarantee

90-day after-sales guarantee

Genuine Product Guarantee

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) 13.5 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 LNK625DG is a highly integrated switching power supply IC designed by Power Integrations. It is part of the LinkSwitch-II family, which is known for offering high efficiency and reliability in compact designs. The device is primarily used in isolated and non-isolated power supply applications, such as chargers, adapters, and LED drivers.
Key features of the LNK625DG include:
1. Integrated Functions: It combines a high-voltage power MOSFET, current mode controller, and other control circuitry into a single package, reducing component count and complexity.
2. EcoSmart Technology: This allows for high efficiency during operation and low standby power consumption, meeting stringent energy efficiency standards.
3. Advanced Protection Features: It includes over-temperature protection, output overvoltage protection, and short-circuit protection, enhancing durability and safety.
4. Design Flexibility: Supports operation in both continuous and discontinuous conduction modes, providing versatility in design.
The LNK625DG is typically available in a surface-mountable package, making it suitable for space-constrained applications. Its robust design and energy efficiency make it a popular choice for modern power supply solutions.

Equivalent

Equivalent products to the LNK625DG chip, which is a Power Integrations LinkSwitch-II series AC-DC converter, include other models within the same series such as LNK623DGLNK624DG, and LNK626DG which vary in power output and efficiency specifications. Alternative brands offering similar functionalities are ON Semiconductor's NCP1014 series and Infineon's ICE3BR4765JZ. Ensure compatibility based on the specific electrical requirements and features of your application when selecting an equivalent product.

Features

The LNK625DG is an integrated power switcher from Power Integrations, designed for use in cost-effective, energy-efficient power supply applications. Key features include:
1. Integrated Design: Combines a high-voltage power MOSFET and control circuitry, reducing component count and improving reliability.
2. High Efficiency: Optimized for low standby power consumption, complying with global energy efficiency standards.
3. Primary-Side Regulation: Eliminates the need for an optocoupler, simplifying design and reducing costs.
4. Built-in Protection: Features over-temperature, over-current, and over-voltage protection mechanisms to enhance system reliability.
5. Compact Package: Available in a SO-8 package, suitable for space-constrained applications.
6. Quasi-Resonant Switching: Minimizes switching losses and electromagnetic interference (EMI), improving overall efficiency.
7. Flexibility: Supports universal AC input voltage range, making it suitable for global applications.
These features make the LNK625DG ideal for use in chargers, adapters, and other low-power offline switch-mode power supplies.

Pinout

The LNK625DG is a part of the LinkSwitch-II family of switch-mode power conversion integrated circuits by Power Integrations. It is typically used in low-power applications such as LED drivers and chargers. The LNK625DG comes in an SO-8 (Surface Mount) package and has a total of 8 pins.
Here are the functions of the pins:
1. D (Drain): Connected internally to the power MOSFET drain.
2. S (Source): Source of the power MOSFET; typically connected to ground.
3. BP (Bypass): Connects to an external capacitor for the internal regulator and control circuitry.
4. FB (Feedback): Used for voltage regulation; connects to an optocoupler or a bias winding.
5. N/C (No Connect): Not internally connected; used for mechanical support and thermal relief in PCB design.
The LNK625DG integrates a power MOSFET, oscillator, high-voltage switch, and control circuitry in one package, simplifying design and reducing component count for efficient AC-DC power conversion.

Manufacturer

The LNK625DG is manufactured by Power Integrations, Inc. Power Integrations is a semiconductor company that specializes in the design and production of high-efficiency, high-reliability electronic components used in power conversion systems. Their products are integral to the creation of energy-efficient power supplies for a wide array of electronic devices and appliances. The company's focus is on providing solutions that enable the reduction of energy consumption in electronics, aligning with global efforts for energy efficiency and sustainability.

Application

The LNK625DG is a highly efficient power conversion IC commonly used in various applications such as power supplies for appliances, LED drivers, and chargers. It is ideal for small form-factor power supplies due to its ability to deliver high efficiency and low standby power consumption. Specifically, it finds application in consumer electronics like set-top boxes, networking equipment, and home appliances where compact and efficient power solutions are required. The LNK625DG's integrated features, such as a high-voltage MOSFET and auto-restart for short circuit protection, make it suitable for creating cost-effective and reliable power supply designs.

Package

The LNK625DG is a power management IC from Power Integrations, typically used for energy-efficient power supply designs. It is housed in an SOIC-8 (Small Outline Integrated Circuit) package, which is an 8-pin surface-mount package designed to provide a compact form factor suitable for automated assembly and efficient heat dissipation.

Products related to LNK625DG