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Product attributes Property Value
Manufacturer Power Integrations
Product Series LinkSwitch™-4
Packaging Cut Tape (CT) | Tape & Reel (TR)
Output Isolation Isolated
Internal Switch(s) No
Voltage - Breakdown -
Topology Flyback
Voltage - Start Up -
Voltage - Supply (Vcc/Vdd) 5V ~ 16.5V
Duty Cycle -
Frequency - Switching 65kHz
Power (Watts) 10 W
Fault Protection Over Temperature, Over Voltage, Short Circuit
Control Features -
Operating Temperature -25°C ~ 125°C (TJ)
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SO
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The LNK4023D-TL from Power Integrations is a LinkSwitch-4 flyback switcher for isolated offline applications, rated at 10W. It drives an external switch from a 5V to 16.5V Vcc supply at a 65kHz switching frequency. Over temperature, over voltage, and short circuit protection are integrated, in an 8-SOIC package rated -25°C to 125°C junction temperature.

  • 10W flyback rating for isolated offline supplies.
  • 65kHz fixed switching frequency simplifies magnetic design.
  • Over temperature, over voltage, and short circuit protection for robust operation.
  • 8-SOIC package for space-efficient layouts.
  • Part of the LinkSwitch-4 series for a consistent design platform.

Medium Low-Power Isolated Supplies

The LNK4023D-TL is a flyback switcher rated for 10W, suited to isolated offline supplies for auxiliary, bias, and small load rails.

8-SOIC Compact Layouts

The 8-SOIC package supports space-efficient converter designs with standard assembly handling.

Fixed 65kHz Operation

A 65kHz switching frequency provides a defined operating point for transformer and filter design in the flyback stage.

Robust Fault Handling

Over temperature, over voltage, and short circuit protection help safeguard the converter under fault conditions.

LinkSwitch-4 Platform

Part of the LinkSwitch-4 series, offering a consistent design platform for isolated flyback supplies.

Q: What topology does the LNK4023D-TL use?
A: It is a flyback switcher for isolated offline applications.
Q: Does it have an internal switch?
A: No, it drives an external switch.
Q: What is the Vcc supply range?
A: 5V to 16.5V.
Q: What power level does it support?
A: 10W.
Q: What switching frequency does it use?
A: 65kHz.
Q: What protections are included?
A: Over temperature, over voltage, and short circuit protection.
Base Product Number : LNK4023D
10W 65kHz 8-SOIC External Switch Flyback Switcher Isolated LinkSwitch-4 Offline AC-DC Power Integrations
Q: What topology does the LNK4023D-TL use?
A: It is a flyback switcher for isolated offline applications.
Q: Does it have an internal switch?
A: No, it drives an external switch.
Q: What is the Vcc supply range?
A: 5V to 16.5V.
Q: What power level does it support?
A: 10W.
Q: What switching frequency does it use?
A: 65kHz.
Q: What protections are included?
A: Over temperature, over voltage, and short circuit protection.