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Product attributes Property Value
Manufacturer Power Integrations
Product Series LinkSwitch™-XT2
Packaging Cut Tape (CT) | Tape & Reel (TR)
Output Isolation Isolated
Internal Switch(s) Yes
Voltage - Breakdown 725V
Topology Flyback
Voltage - Start Up -
Voltage - Supply (Vcc/Vdd) -
Duty Cycle 69%
Frequency - Switching 132kHz
Power (Watts) 7.3 W
Fault Protection Current Limiting, Over Temperature, Over Voltage
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

The Power Integrations LNK3604D-TL is an isolated flyback offline switcher from the LinkSwitch™-XT2 series with an integrated switch and a 725V breakdown rating. It delivers up to 7.3W, switches at 132kHz with a 69% maximum duty cycle, and includes current limiting, over temperature, and over voltage protection. It is housed in an 8-SOIC (7 leads) package.

  • Integrated switch and 725V breakdown simplify low-to-medium power isolated flyback design.
  • 7.3W power rating suits compact bias and auxiliary offline supplies.
  • 132kHz switching frequency supports small magnetics and compact footprint.
  • Current limiting, over temperature, and over voltage protection improve reliability.
  • -40°C to 150°C operating range fits thermally demanding applications.

Low-to-Medium Power Isolated Supplies

With a 7.3W power rating and integrated switch, this flyback switcher suits compact isolated bias and auxiliary supplies in offline designs.

Compact 8-SOIC Designs

The 8-SOIC (7 leads) package and 132kHz switching frequency enable small, low-component-count isolated flyback converters.

Reliable Protection

Current limiting, over temperature, and over voltage protection support dependable operation across fault conditions.

Wide Temperature Operation

A -40°C to 150°C operating range makes the device suitable for thermally demanding environments.

Q: What topology does the LNK3604D-TL use?
A: It is an isolated flyback offline switcher with an integrated switch.
Q: What is the breakdown voltage?
A: The device has a 725V breakdown rating.
Q: What is the power rating?
A: It delivers up to 7.3W.
Q: What switching frequency does it use?
A: It operates at 132kHz with a 69% maximum duty cycle.
Q: What protections are included?
A: Current limiting, over temperature, and over voltage protection.
Base Product Number : LNK3604D-TL
132kHz 7.3W 725V Breakdown 8-SOIC AC-DC Converter Flyback Converter Integrated Switch Isolated LinkSwitch-XT2 Offline Switcher
Q: What topology does the LNK3604D-TL use?
A: It is an isolated flyback offline switcher with an integrated switch.
Q: What is the breakdown voltage?
A: The device has a 725V breakdown rating.
Q: What is the power rating?
A: It delivers up to 7.3W.
Q: What switching frequency does it use?
A: It operates at 132kHz with a 69% maximum duty cycle.
Q: What protections are included?
A: Current limiting, over temperature, and over voltage protection.