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TOP234GN - TOPSwitch-FX Offline Switching Power Supply IC

The TOP234GN from Power Integrations is a high-performance offline switcher IC from the renowned TOPSwitch-FX family, designed for reliable and efficient AC-DC power conversion in flyback topology applications up to 30W.

Key Features & Benefits

  • Integrated Power MOSFET: 700V breakdown voltage for universal input applications
  • Advanced Frequency Control: Variable switching frequency (66kHz to 132kHz) optimizes efficiency and reduces EMI
  • Comprehensive Protection: Built-in current limiting, over-temperature, and over-voltage protection ensures robust operation
  • High Efficiency Design: 78% maximum duty cycle enables compact transformer designs
  • Space-Saving Package: SMD-8B surface mount package (8-SMD with 7 leads, gull wing) ideal for automated assembly
  • Wide Operating Range: -40°C to 150°C junction temperature for demanding environments
  • RoHS Compliant: Environmentally friendly, lead-free construction

Typical Applications

  • AC-DC adapters and chargers
  • Auxiliary power supplies
  • Consumer electronics power systems
  • Industrial control equipment
  • LED lighting drivers
  • Home appliances

Why Choose TOP234GN?

The TOP234GN offers exceptional value for power supply designers seeking a reliable, cost-effective solution with integrated protection features. Its proven TOPSwitch-FX architecture reduces component count, simplifies design, and accelerates time-to-market while maintaining high efficiency and reliability standards.

Quality Assurance: As an authorized distributor, we provide genuine Power Integrations components with full traceability and manufacturer warranty support.

Product attributes Property Value
Manufacturer Power Integrations
Product Series TOPSwitch®-FX
Packaging |
Output Isolation Isolated
Internal Switch(s) Yes
Voltage - Breakdown 700V
Topology Flyback
Voltage - Start Up -
Voltage - Supply (Vcc/Vdd) -
Duty Cycle 78%
Frequency - Switching 66kHz ~ 132kHz
Power (Watts) 30 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