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TOP253PNAU - TOPSwitch-HX Offline Switcher IC

The TOP253PNAU from Power Integrations is a high-performance offline switcher IC from the TOPSwitch-HX family, designed for isolated flyback power supply applications up to 25W. This integrated solution combines a 700V power MOSFET, oscillator, high-voltage switched current source, current limit, and shutdown circuitry onto a single chip.

Key Features & Benefits

  • 25W Power Output: Ideal for low to medium power AC-DC converters in industrial, automotive, and telecommunications applications
  • 700V Breakdown Voltage: Provides robust performance and reliability for universal input voltage designs
  • 66kHz Switching Frequency: Enables compact transformer designs while maintaining efficiency
  • Comprehensive Protection: Built-in current limiting, over-voltage protection (OVP), and over-temperature protection (OTP) ensure safe, reliable operation
  • 78% Maximum Duty Cycle: Optimizes power delivery and transformer utilization
  • Wide Operating Temperature Range: -40°C to 150°C (TJ) for demanding environments
  • Through-Hole 8-DIP Package: Easy integration and prototyping with standard PCB assembly processes

Applications

  • AC-DC power supplies for industrial control systems
  • Automotive auxiliary power modules
  • Telecommunications equipment power conversion
  • Aerospace and defense power management
  • Smart metering and IoT devices
  • Battery chargers and adapters

Why Choose HQICKEY?

All TOP253PNAU units are sourced directly from authorized Power Integrations distributors, ensuring 100% authenticity with full manufacturer documentation and traceability. We specialize in long-lifecycle components for mission-critical applications where reliability and provenance are paramount.

Product attributes Property Value
Manufacturer Power Integrations
Product Series TOPSwitch®-HX
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
Power (Watts) 25 W
Fault Protection Current Limiting, Over Temperature, Over Voltage
Control Features -
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-C

No datasheet available. Please contact sales@hqickey.com for the latest datasheet.