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TOP242GN - TOPSwitch-GX Series Offline Switcher IC

The TOP242GN from Power Integrations is a high-performance, integrated offline switcher IC from the TOPSwitch-GX family, designed for cost-effective, space-saving flyback power supply applications up to 15W. This surface-mount device combines a 700V power MOSFET, oscillator, high-voltage switched current source, current limit, and thermal shutdown circuitry on a single chip.

Key Features & Benefits

  • Integrated Design: Reduces component count and board space with built-in 700V MOSFET and control circuitry
  • Wide Switching Frequency: 66kHz to 132kHz operation enables compact transformer designs
  • Comprehensive Protection: Current limiting, over-temperature, and over-voltage protection ensure reliable operation
  • High Efficiency: Frequency control and 66.5% duty cycle optimize power conversion
  • Wide Operating Range: -40°C to 150°C junction temperature for demanding applications
  • Compact Package: SMD-8B surface mount package (8-SMD with 7 leads, gull wing) saves PCB space
  • RoHS Compliant: Meets environmental standards for global markets

Typical Applications

  • AC-DC power supplies for consumer electronics
  • Standby power supplies
  • Auxiliary power supplies
  • Battery chargers
  • LED lighting drivers
  • Industrial control systems

All specifications are subject to change without notice. Please refer to the manufacturer's datasheet for complete details.

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) 15 W
Fault Protection Current Limiting, Over Temperature, Over Voltage
Control Features Frequency Control
Operating Temperature -40°C ~ 150°C (TJ)
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case 8-SMD (7 Leads), Gull Wing
Supplier Device Package SMD-8B
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY