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Product attributes Property Value
Manufacturer Power Integrations
Product Series LYTSwitch™-2
Packaging Tape & Reel (TR) |
Output Isolation Isolated
Internal Switch(s) Yes
Voltage - Breakdown 725V
Topology Flyback
Voltage - Start Up -
Voltage - Supply (Vcc/Vdd) -
Duty Cycle 55%
Frequency - Switching 85kHz
Power (Watts) 8 W
Fault Protection -
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 LYT2004D-TL is an isolated offline Flyback switcher from the LYTSwitch™-2 series with an integrated internal switch. It offers a 725V breakdown rating, 85kHz switching frequency, 55% maximum duty cycle, and delivers up to 8 W. Housed in an 8-SOIC (7 leads) package and rated for -40°C to 150°C (TJ), it is well suited to compact, thermally demanding low-power AC-DC designs.

  • 725V breakdown rating — provides strong offline mains margin.
  • Integrated switch — reduces external component count and simplifies layout.
  • Compact 8-SOIC package — saves board space.
  • Wide -40°C to 150°C (TJ) range — reliable in high-temperature enclosures.
  • 8 W output — ideal for low-power isolated supplies.

Low-Power Isolated Supplies

With 8 W output and 725V breakdown, the LYT2004D-TL suits compact isolated flyback supplies for small appliances and standby rails.

High-Temperature Enclosures

A -40°C to 150°C (TJ) rating supports reliable operation in thermally demanding, enclosed designs.

Space-Constrained Boards

The 8-SOIC (7 leads) package and integrated switch reduce footprint in compact power stages.

Efficient Low-Power Conversion

An 85kHz switching frequency and 55% maximum duty cycle support efficient low-power flyback operation.

Q: What topology does the LYT2004D-TL use?
A: It uses Flyback topology for isolated offline conversion.
Q: What is the breakdown voltage?
A: The device has a 725V breakdown voltage rating.
Q: How much power can it deliver?
A: It delivers up to 8 W.
Q: What is the switching frequency?
A: The switching frequency is 85kHz.
Q: What is the maximum duty cycle?
A: The maximum duty cycle is 55%.
Q: What is the operating temperature range?
A: It operates from -40°C to 150°C (TJ).
Base Product Number : LYT2004D
725V 8-SOIC 85kHz 8W AC-DC Converter Flyback Converter Isolated LYTSwitch-2 Offline Switcher
Q: What topology does the LYT2004D-TL use?
A: It uses Flyback topology for isolated offline conversion.
Q: What is the breakdown voltage?
A: The device has a 725V breakdown voltage rating.
Q: How much power can it deliver?
A: It delivers up to 8 W.
Q: What is the switching frequency?
A: The switching frequency is 85kHz.
Q: What is the maximum duty cycle?
A: The maximum duty cycle is 55%.
Q: What is the operating temperature range?
A: It operates from -40°C to 150°C (TJ).