Fixed-Frequency PWM Controller and Integrated Power FET

Today’s power supplies demand components which provide best-in-class performance, efficiency, robustness, and ease of design. To meet this need, Infineon Technologies AG announces the Fixed-Frequency 700 V/800 V CoolSET™ 5th  generation. This solution combines a pwm controller IC with the latest 700V and 800V CoolMOS™ P7 MOSFETs in a single package. The single platform supports isolated and non-isolated flyback topologies.

The new fixed-frequency 700V/800V CoolSET uses a high-voltage Superjunction MOSFET in combination with an internal current regulator in a cascode configuration. This combination provides rapid startup, and easy implementation of brown in protection.

The integrated 800V MOSFET and optimized leading edge blanking time support high ac line inputs up to 350 ac. Switching losses are reduced through an eco-mode which features a reduced switching frequency at mid- and light-load conditions.

In addition to the standard output short, overload and over voltage protection, the CoolSET can detect abnormal line input conditions. In-system protection includes V CC and CS pin short-to-ground to prevent controller damage during abnormal startup conditions.

Over temperature protection uses hysteresis to improve operational fault handling. All protection modes are implemented with auto-resume to minimize interruptions to system operation.

The complete Fixed-Frequency 700V and 800V CoolSET 5th generation product portfolio is available now. The integrated CoolSET devices are available in DIP-7 and DSO-12 and the standalone fixed-frequency pwm controller is available in a DSO-8 package.

Infineon Technologies AG
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