LNK6406D

LNK6406D - LinkSwitch-3 AC-DC Offline Switcher IC

The LNK6406D from Power Integrations is a highly integrated AC-DC offline switcher IC from the LinkSwitch-3 family, designed for cost-effective, space-saving power supply solutions up to 6.1W. This single-chip solution combines a 725V power MOSFET, oscillator, control logic, and comprehensive protection features in a compact SO-8C surface mount package.

Key Features & Benefits

• Integrated 725V MOSFET – Reduces component count and board space
• 6.1W maximum output power – Ideal for low-power auxiliary supplies, standby converters, and smart home devices
• Flyback topology – Proven, cost-effective design for isolated power conversion
• Up to 85kHz switching frequency – Enables use of smaller transformers and output capacitors
• Comprehensive fault protection – Current limiting, open loop, over-temperature, and short circuit protection ensure reliable operation
• Wide operating temperature range – -40°C to 150°C (TJ) for demanding industrial and automotive applications
• Surface mount SO-8C package – Automated assembly compatible, RoHS compliant

Typical Applications

• Auxiliary power supplies for industrial equipment
• Standby power for consumer electronics
• Smart home and IoT device power
• LED lighting drivers
• White goods and appliances
• Telecom and networking equipment

Why Choose Authorized Distribution?

When you purchase the LNK6406D from our authorized distributor network, you receive:

• ✓ 100% genuine Power Integrations components with full manufacturer traceability
• ✓ Complete technical documentation including datasheets, application notes, and reference designs
• ✓ Long lifecycle availability to support your product programs and mitigate obsolescence risk
• ✓ Design-in support from Power Integrations and our technical team
• ✓ Global shipping through authorized channels with proper handling and storage

Download LinkSwitch-3 Family Datasheet →

• LNK6406D.pdf