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Product attributes Property Value
Manufacturer Power Integrations
Product Series LinkSwitch™-3
Packaging |
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) 10 W
Fault Protection Current Limiting, Open Loop, Over Temperature, Short Circuit
Control Features -
Operating Temperature -40°C ~ 150°C (TJ)
Grade -
Qualification -
Mounting Type Through Hole
Package / Case 7-SSIP, 6 Leads, Exposed Pad, Formed Leads
Supplier Device Package eSIP-7C
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The Power Integrations LNK6418E is an isolated Flyback offline switcher from the LinkSwitch™-3 series with an integrated power switch. It delivers up to 10 W with a 725V breakdown rating, up to 85kHz switching frequency, and 55% maximum duty cycle. Comprehensive fault protection includes current limiting, open loop, over temperature, and short circuit safeguards. Housed in a 7-SSIP package with exposed pad, it operates across a -40°C to 150°C junction temperature range.

  • Integrated power switch reduces external component count and simplifies Flyback design.
  • 725V breakdown voltage provides headroom for universal offline AC input.
  • Up to 10 W output with up to 85kHz switching supports compact isolated supplies.
  • Comprehensive fault protection (current limiting, open loop, over temperature, short circuit) enhances reliability.
  • Wide -40°C to 150°C junction temperature range suits demanding thermal environments.

Compact AC-DC Adapters

The LNK6418E integrates the power switch and controller in a Flyback topology, delivering up to 10 W for space-constrained chargers and adapters. The 725V breakdown rating provides margin for universal AC input.

Standby & Auxiliary Supplies

With up to 85kHz switching and 55% max duty cycle, this isolated Flyback switcher suits auxiliary bias supplies requiring galvanic isolation and reliable regulation.

Home Appliance Power

Built-in current limiting, open loop, over temperature, and short circuit protection make the LNK6418E well suited for appliance control boards operating in demanding thermal environments up to 150°C junction temperature.

Industrial Control Modules

The 7-SSIP exposed-pad package aids thermal dissipation, supporting continuous isolated power delivery in industrial instrumentation and metering designs.

Q: What switching topology does the LNK6418E use?
A: It is a Flyback offline switcher with galvanically isolated output, ideal for AC-DC conversion.
Q: Does it include an integrated power switch?
A: Yes, the power MOSFET is integrated on-chip, simplifying design and reducing external components.
Q: What is the breakdown voltage rating?
A: The device features a 725V Vds breakdown rating for robust offline operation.
Q: How much power can it deliver?
A: It supports up to 10 W of output power with switching frequency up to 85kHz.
Q: What protections are built in?
A: Current limiting, open loop, over temperature, and short circuit protection are included.
Base Product Number : LNK6418E
10 W 7-SSIP 725V Breakdown AC-DC Flyback Converter Isolated LinkSwitch-3 Offline Switcher Power Integrations
Q: What switching topology does the LNK6418E use?
A: It is a Flyback offline switcher with galvanically isolated output, ideal for AC-DC conversion.
Q: Does it include an integrated power switch?
A: Yes, the power MOSFET is integrated on-chip, simplifying design and reducing external components.
Q: What is the breakdown voltage rating?
A: The device features a 725V Vds breakdown rating for robust offline operation.
Q: How much power can it deliver?
A: It supports up to 10 W of output power with switching frequency up to 85kHz.
Q: What protections are built in?
A: Current limiting, open loop, over temperature, and short circuit protection are included.