LNK305P

Part points

• LNK305P is a power management integrated circuit (IC) developed by Power Integrations. It is a highly efficient and cost-effective solution designed for offline switch mode power supplies. The chip includes features like auto-restart for short circuit protection, integrated line undervoltage lockout, and thermal shutdown protection. It is commonly used in LED lighting, home appliances, and industrial power supply applications.

• Equivalent

  Some equivalent products of LNK305P chip are LNK304, LNK306, LNK307, and LNK308. These chips are all part of the LinkSwitch family of integrated circuits designed for offline power conversion applications.

• Features

  1. Highly integrated off-line switcher with EcoSmart technology 2. Integrated 725 V MOSFET 3. System level energy efficiency optimization 4. Auto-restart for short-circuit and open-loop protection 5. Frequency jittering reduces EMI filter cost 6. Enhanced line surge withstand as per IEC61000-4-5 7. Accurate hysteretic thermal shutdown reduces power supply size and cost

• Pinout

  LNK305P has 7 pins and functions as a highly integrated energy-efficient, secondary feedback controller that incorporates a 700 V power MOSFET. It is designed for use in flyback power supplies up to 5 W. The device can achieve less than 30 mW no-load consumption in a typical 230 VAC input, 5 V output application.

• Manufacturer

  LinkSwitch-TN2 LNK305P is manufactured by Power Integrations, an American semiconductor company specializing in power conversion technologies. They design, develop, and manufacture a broad range of high-voltage integrated circuits for energy-efficient power conversion in a variety of applications including domestic appliances, office equipment, and LED lighting.

• Application Field

  LNK305P is commonly used in non-isolated buck LED drivers, offline constant current LED drivers, and general-purpose constant voltage and constant current power supplies. It is suitable for applications in LED lighting, appliances, industrial equipment, and other electronics requiring high-efficiency power conversion.

• Package

  The LNK305P chip is a DIP-7 package type, which is a dual in-line package with 7 pins. It has a through-hole form, suitable for mounting on a PCB. The chip dimensions are approximately 9.5mm x 6.5mm x 3.75mm.