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Infineon Technologies CoolSET™ Fixed Frequency Plus Integrated Power ICs

Infineon Technologies CoolSET™ Fixed Frequency Plus Integrated Power ICs are optimized for off-line switch mode power supplies in cascode configurations. The CoolSET package has two separate chips inside: one is a controller chip, and the other is a 700V/800V/950V CoolMOS™ chip. The cascode configuration helps achieve fast startup. The frequency reduction with soft gate driving and frequency jitter operation offers lower EMI and better efficiency. Selectable entry and exit standby power ABM enables flexibility and ultra-low power consumption at standby mode with small and controllable output voltage ripple.

These components feature an IC power supply operating range of 10.0V to 32.0V and lower power consumption. Numerous protection functions support the power supply system in failure situations. All these features make the CoolSET 5th Generation Fixed Frequency Plus series an outstanding integrated power stage fixed frequency flyback and buck converter.

Features

  • Integrated 700V/800V/950V avalanche rugged CoolMOS super junction in a DIP-7 package
  • Active Burst Mode with selectable entry and exit standby power to reach the lowest standby power of <100mW
  • Frequency reduction for better overall system efficiency
  • Fast startup achieved with a cascode configuration
  • Frequency jitter and soft gate driving for low EMI
  • Integrated error amplifier to support direct feedback in non-isolated flyback and buck topologies
  • Increased pin voltage rating for ease of system design
  • Comprehensive protection and most protections are in auto-restart mode
  • Selectable over temperature protection threshold
  • Supports isolated and non-isolated flyback and buck topologies
  • Up to 41W power delivery (at 85VAC to 300VAC)
  • 65kHz and 100kHz maximum switching frequencies
  • 15V typical output
  • Pin-to-pin compatibility with the previous Gen 5 family
  • Lead-free lead plating, halogen-free mold compound, and RoHS-compliant

Applications

  • Auxiliary power supplies for home appliances/white goods, TVs, PCs/servers, and smart metering
  • Blu-ray players, set-top boxes, and LCD/LED monitors

Typical Application

Application Circuit Diagram - Infineon Technologies CoolSET™ Fixed Frequency Plus Integrated Power ICs

Block Diagram

Block Diagram - Infineon Technologies CoolSET™ Fixed Frequency Plus Integrated Power ICs

Resources

Published: 2025-01-14 | Updated: 2025-09-24