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Product attributes Property Value
Manufacturer Power Integrations
Product Series LinkSwitch™-HP
Packaging Tube |
Output Isolation Isolated
Internal Switch(s) Yes
Voltage - Breakdown 650V
Topology Flyback
Voltage - Start Up -
Voltage - Supply (Vcc/Vdd) -
Duty Cycle 64%
Frequency - Switching 120kHz ~ 136kHz
Power (Watts) 135 W
Fault Protection Current Limiting, Over Load, Over Temperature, Over Voltage, 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 LNK6668E from Power Integrations is a LinkSwitch-HP series offline flyback switcher delivering up to 135 W with a 650V integrated power switch. It operates at 120kHz to 136kHz with a 64% maximum duty cycle and provides galvanically isolated output. Protections include current limiting, over load, over temperature, over voltage, and short circuit. Supplied in a 7-SSIP package with exposed pad.

  • Integrated 650V switch simplifies isolated flyback design.
  • High 135 W output power supports demanding applications.
  • 120kHz to 136kHz switching with 64% max duty cycle.
  • Comprehensive fault protection enhances reliability.
  • Wide -40°C to 150°C junction range for harsh environments.

High-Power Isolated Flyback Supplies

Delivering up to 135 W with a 650V integrated switch, the LNK6668E suits isolated flyback designs requiring substantial output power.

Adapters and Chargers

The 120kHz to 136kHz switching range and 64% max duty cycle support compact isolated power conversion.

Industrial Power Systems

A -40°C to 150°C junction temperature range enables reliable operation in harsh thermal environments.

Appliance and Consumer Power

Integrated switch and comprehensive fault protection simplify offline power design in the LinkSwitch-HP series.

Q: What topology does the LNK6668E use?
A: It is a Flyback offline switcher providing galvanically isolated output.
Q: Does it have an integrated switch?
A: Yes, the power switch is integrated, rated to 650V breakdown.
Q: What output power can it deliver?
A: Up to 135 W.
Q: What is the switching frequency?
A: 120kHz to 136kHz.
Q: What is the maximum duty cycle?
A: 64%.
Q: What protections are included?
A: Current limiting, over load, over temperature, over voltage, and short circuit protection.
Base Product Number : LNK6668E
135 W 650V 7-SSIP AC/DC Converter Flyback Converter Integrated Switch Isolated LinkSwitch-HP Offline Switcher
Q: What topology does the LNK6668E use?
A: It is a Flyback offline switcher providing galvanically isolated output.
Q: Does it have an integrated switch?
A: Yes, the power switch is integrated, rated to 650V breakdown.
Q: What output power can it deliver?
A: Up to 135 W.
Q: What is the switching frequency?
A: 120kHz to 136kHz.
Q: What is the maximum duty cycle?
A: 64%.
Q: What protections are included?
A: Current limiting, over load, over temperature, over voltage, and short circuit protection.