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Product attributes Property Value
Manufacturer Power Integrations
Product Series TinySwitch®-4
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 67%
Frequency - Switching 124kHz ~ 140kHz
Power (Watts) 14.5 W
Fault Protection Current Limiting, Open Loop, Over Temperature, Over Voltage, Short Circuit
Control Features EN
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 TNY288DG-TL from Power Integrations is a TinySwitch®-4 flyback offline switcher delivering up to 14.5 W with a 725V breakdown rating. It integrates the internal switch for a compact isolated design, runs at 124kHz to 140kHz with 67% maximum duty cycle, and includes current limiting, open loop, over temperature, over voltage, and short circuit protection. Supplied in a 7-lead 8-SOIC package rated for -40°C to 150°C junction temperatures.

  • Higher 14.5 W output in a compact isolated flyback design.
  • Integrated internal switch reduces external component count.
  • 725V breakdown voltage provides wide Vds margin for offline operation.
  • Comprehensive fault protection (current limiting, open loop, over temperature, over voltage, short circuit) improves reliability.
  • EN control feature enables flexible regulation; wide -40°C to 150°C junction range.

Mid-Power Isolated Adapters

At 14.5 W with a 725V breakdown rating, the TNY288DG-TL suits isolated adapters and chargers needing higher output in a compact flyback design.

Standby and Bias Supplies

The integrated switch and EN control feature simplify isolated bias rails, reducing external component count.

Home Appliance Power Boards

The -40°C to 150°C junction temperature range supports reliable operation in appliance control electronics.

Industrial Auxiliary Supplies

Galvanic isolation plus over voltage and short circuit protection meet safety and reliability needs in isolated control rails.

Networking and IoT Devices

124kHz to 140kHz switching with 67% maximum duty cycle supports compact isolated power stages for connected equipment.

Q: What is the topology of the TNY288DG-TL?
A: It is a flyback offline switcher with galvanically isolated output and an integrated internal switch.
Q: What is the breakdown voltage?
A: It has a 725V Vds breakdown rating.
Q: How much power can it deliver?
A: Up to 14.5 W.
Q: What switching frequency and duty cycle does it use?
A: 124kHz to 140kHz switching frequency with a 67% maximum duty cycle.
Q: What protections are included?
A: Current limiting, open loop, over temperature, over voltage, and short circuit protection.
Base Product Number : TNY288DG
124kHz ~ 140kHz 14.5 W 725V Breakdown 8-SOIC AC-DC Converter Flyback Converter Isolated Offline Switcher TinySwitch-4
Q: What is the topology of the TNY288DG-TL?
A: It is a flyback offline switcher with galvanically isolated output and an integrated internal switch.
Q: What is the breakdown voltage?
A: It has a 725V Vds breakdown rating.
Q: How much power can it deliver?
A: Up to 14.5 W.
Q: What switching frequency and duty cycle does it use?
A: 124kHz to 140kHz switching frequency with a 67% maximum duty cycle.
Q: What protections are included?
A: Current limiting, open loop, over temperature, over voltage, and short circuit protection.