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Product attributes Property Value
Manufacturer Power Integrations
Product Series LinkSwitch™-3
Packaging Tape & Reel (TR) |
Output Isolation Isolated
Internal Switch(s) Yes
Voltage - Breakdown 725V
Topology Flyback
Voltage - Start Up -
Voltage - Supply (Vcc/Vdd) -
Duty Cycle 55%
Frequency - Switching Up to 85kHz
Power (Watts) 5.1 W
Fault Protection Current Limiting, Open Loop, Over Temperature, Short Circuit
Control Features -
Operating Temperature -40°C ~ 150°C (TJ)
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width), 7 Leads
Supplier Device Package SO-8C
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

Power Integrations LNK6405D-TL - LinkSwitch-3 Offline Switcher IC

The LNK6405D-TL is a high-performance offline switcher IC from Power Integrations' LinkSwitch-3 family, designed for compact, energy-efficient AC-DC power conversion applications up to 5.1W. This integrated solution combines a 725V power MOSFET, oscillator, control logic, and comprehensive protection features in a space-saving SO-8C surface mount package.

Key Features & Benefits

  • Integrated Flyback Topology: Simplifies design with built-in switching element and control circuitry
  • 5.1W Output Power: Ideal for low-power applications including standby supplies, auxiliary power, and smart home devices
  • 725V Breakdown Voltage: Provides robust margin for universal input voltage designs (85-265 VAC)
  • Up to 85kHz Switching Frequency: Enables use of smaller, cost-effective transformers and output capacitors
  • Comprehensive Protection: Current limiting, open loop, over-temperature, and short circuit protection ensure reliable operation
  • Isolated Output: Meets safety requirements for mains-connected applications
  • Wide Operating Temperature Range: -40°C to 150°C (TJ) for demanding industrial and automotive environments
  • RoHS Compliant: Meets environmental standards for global market access

Typical Applications

  • Standby power supplies for consumer electronics
  • Auxiliary power for white goods and industrial equipment
  • Smart home and IoT device power
  • LED lighting drivers
  • Battery chargers and adapters
  • Meter and instrumentation power

All specifications are subject to change without notice. Please refer to the manufacturer's datasheet for complete design information and application guidelines.