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TOP243P - TOPSwitch-GX Offline Switcher IC

The TOP243P from Power Integrations is a high-performance 25W flyback offline switcher IC featuring integrated MOSFET and comprehensive fault protection. Ideal for AC-DC power supply designs in industrial, telecommunications, and consumer applications requiring reliable, efficient power conversion.

Key Features & Benefits

  • 25W Power Output - Optimized for medium-power applications
  • 700V Breakdown Voltage - High voltage capability for universal input designs
  • Integrated Protection - Current limiting, over-temperature, and over-voltage protection
  • Frequency Control - 66kHz to 132kHz switching frequency for reduced EMI
  • Wide Operating Range - -40°C to 150°C junction temperature
  • Through-Hole Package - Easy assembly and prototyping with 8-DIP format

Applications

Perfect for power supplies in industrial controls, telecom equipment, white goods, and consumer electronics requiring isolated flyback topology with built-in safety features.

Authorized distributor of genuine Power Integrations components with full traceability and lifecycle support.

Product attributes Property Value
Manufacturer Power Integrations
Product Series TOPSwitch®-GX
Packaging |
Output Isolation Isolated
Internal Switch(s) Yes
Voltage - Breakdown 700V
Topology Flyback
Voltage - Start Up -
Voltage - Supply (Vcc/Vdd) -
Duty Cycle 66.5%
Frequency - Switching 66kHz ~ 132kHz
Power (Watts) 25 W
Fault Protection Current Limiting, Over Temperature, Over Voltage
Control Features Frequency Control
Operating Temperature -40°C ~ 150°C (TJ)
Grade -
Qualification -
Mounting Type Through Hole
Package / Case 8-DIP (0.300", 7.62mm), 7 Leads
Supplier Device Package 8-PDIP-B