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Product attributes Property Value
Manufacturer Power Integrations
Product Series TOPSwitch®-JX
Packaging Tube |
Output Isolation Isolated
Internal Switch(s) Yes
Voltage - Breakdown 725V
Topology Flyback
Voltage - Start Up -
Voltage - Supply (Vcc/Vdd) -
Duty Cycle 78%
Frequency - Switching 66kHz, 132kHz
Power (Watts) 34 W
Fault Protection Current Limiting, Over Load, Over Temperature, Over Voltage, Short Circuit
Control Features Frequency Control
Operating Temperature -40°C ~ 150°C (TJ)
Grade -
Qualification -
Mounting Type Through Hole
Package / Case 12-SDIP (0.412", 10.46mm), 11 Leads, Exposed Pad
Supplier Device Package eDIP-12
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The Power Integrations TOP264VG from the TOPSwitch-JX series is an isolated Flyback offline switcher with an integrated 725V switch. It delivers up to 34W with selectable 66kHz or 132kHz switching frequency and 78% maximum duty cycle. Frequency control is included, along with current limiting, over load, over temperature, over voltage, and short circuit protection. Supplied in a 12-SDIP exposed-pad package rated to 150°C junction temperature.

  • Integrated 725V switch simplifies isolated flyback designs up to 34W.
  • Selectable 66kHz/132kHz frequency aids efficiency and EMI optimization.
  • Frequency control supports flexible design tuning.
  • Comprehensive fault protection improves field reliability.
  • Exposed-pad 12-SDIP package enhances thermal performance.

Isolated AC-DC Power Supplies

The TOPSwitch-JX TOP264VG delivers up to 34W in isolated Flyback topology with a 725V integrated switch, suited to general-purpose offline supplies.

Consumer Adapters

Selectable 66kHz/132kHz frequency control and 78% max duty cycle help balance efficiency and EMI in compact adapters.

Industrial and Appliance Power

A -40°C to 150°C junction rating supports harsh-environment power conversion in appliances and industrial controls.

Auxiliary and Standby Rails

Frequency control and comprehensive fault protection (over load, short circuit, OVP, OTP) support reliable auxiliary supply designs.

Q: What topology does the TOP264VG use?
A: It is an isolated Flyback offline switcher.
Q: What is the breakdown voltage?
A: The integrated switch is rated at 725V.
Q: What power and frequency does it deliver?
A: Up to 34W at 66kHz or 132kHz selectable switching frequency.
Q: What is the maximum duty cycle?
A: 78% maximum duty cycle.
Q: What protections are included?
A: Current limiting, over load, over temperature, over voltage, and short circuit protection.
Base Product Number : TOP264VG
12-SDIP 132kHz 34W 66kHz 725V Flyback Converter Isolated Offline Switcher Power Integrations TOPSwitch-JX
Q: What topology does the TOP264VG use?
A: It is an isolated Flyback offline switcher.
Q: What is the breakdown voltage?
A: The integrated switch is rated at 725V.
Q: What power and frequency does it deliver?
A: Up to 34W at 66kHz or 132kHz selectable switching frequency.
Q: What is the maximum duty cycle?
A: 78% maximum duty cycle.
Q: What protections are included?
A: Current limiting, over load, over temperature, over voltage, and short circuit protection.