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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 LNK6408E is a LinkSwitch™-3 flyback offline switcher with an integrated switch and 725V breakdown voltage, delivering up to 10W. It switches at up to 85kHz with a 55% maximum duty cycle and includes current limiting, open loop, over temperature, and short circuit protection. It is housed in a 7-SSIP package with exposed pad and rated for -40°C to 150°C junction temperature.

  • Integrated switch simplifies isolated flyback designs and reduces external parts.
  • 725V breakdown voltage provides headroom for offline mains operation.
  • Up to 85kHz switching and 55% max duty cycle support compact 10W designs.
  • Current limiting, open loop, OTP, and SCP protection improve reliability.
  • Exposed-pad 7-SSIP package aids thermal performance across -40°C to 150°C.

Compact Isolated Adapters

The LNK6408E uses a flyback topology with an integrated switch to deliver up to 10W in isolated adapters. The 725V breakdown rating provides margin for offline mains operation.

Appliance Auxiliary Supplies

With up to 85kHz switching and 55% maximum duty cycle, this LinkSwitch™-3 device supports compact isolated bias supplies in appliances.

Metering and Control Power

Current limiting, open loop, over temperature, and short circuit protection support reliable isolated flyback supplies in metering and control electronics.

Thermally Demanding Environments

Rated for -40°C to 150°C junction temperature in a 7-SSIP package with exposed pad, the LNK6408E suits isolated supplies in demanding thermal conditions.

Q: What topology does the LNK6408E use?
A: It is a LinkSwitch™-3 flyback offline switcher with an integrated switch and galvanically isolated output.
Q: What is the breakdown voltage?
A: 725V Vds rating.
Q: What is the maximum duty cycle?
A: 55% maximum duty cycle.
Q: What is the switching frequency?
A: Up to 85kHz.
Q: How much power can it deliver?
A: Up to 10W with current limiting, open loop, over temperature, and short circuit protection.
Base Product Number : LNK6408E
10W 7-SSIP 725V 85kHz AC-DC Flyback Converter Isolated LinkSwitch-3 LNK6408E Offline Switcher
Q: What topology does the LNK6408E use?
A: It is a LinkSwitch™-3 flyback offline switcher with an integrated switch and galvanically isolated output.
Q: What is the breakdown voltage?
A: 725V Vds rating.
Q: What is the maximum duty cycle?
A: 55% maximum duty cycle.
Q: What is the switching frequency?
A: Up to 85kHz.
Q: How much power can it deliver?
A: Up to 10W with current limiting, open loop, over temperature, and short circuit protection.