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Infineon ICE3BS02 CoolSET®F3 Flyback Offline Switching Controller

The ICE3BS02 from Infineon Technologies is a high-performance flyback offline switching controller from the CoolSET®F3 series, designed for isolated AC/DC power supply applications. This through-hole controller delivers reliable power conversion with advanced protection features and efficient thermal management.

Key Features & Benefits

  • 67kHz Switching Frequency - Optimized for compact transformer designs and reduced EMI
  • Wide Supply Voltage Range - Operates from 8.5V to 21V with 15V start-up voltage
  • Comprehensive Fault Protection - Current limiting, open loop, overload, over-temperature, and over-voltage protection
  • 72% Maximum Duty Cycle - Enables efficient power delivery across load conditions
  • Soft Start Control - Reduces inrush current and stress on components during power-up
  • Extended Temperature Range - Operates reliably from -25°C to 130°C (TJ)
  • Standard Through-Hole Package - Easy integration with 8-DIP (0.300", 7.62mm) footprint

Typical Applications

  • AC/DC adapters and chargers
  • Auxiliary power supplies
  • Industrial control systems
  • Consumer electronics power management
  • Isolated flyback converters

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

Product attributes Property Value
Manufacturer Infineon Technologies
Product Series CoolSET®F3
Packaging |
Output Isolation Isolated
Internal Switch(s) No
Voltage - Breakdown -
Topology Flyback
Voltage - Start Up 15 V
Voltage - Supply (Vcc/Vdd) 8.5V ~ 21V
Duty Cycle 72%
Frequency - Switching 67kHz
Power (Watts) -
Fault Protection Current Limiting, Open Loop, Over Load, Over Temperature, Over Voltage
Control Features Soft Start
Operating Temperature -25°C ~ 130°C (TJ)
Grade -
Qualification -
Mounting Type Through Hole
Package / Case 8-DIP (0.300", 7.62mm)
Supplier Device Package PG-DIP-8