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Power Integrations

LNK6405D-TL

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Recycling Electronic Components

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.

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

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