VIPER26K regulators with built-in 1050V MOSFET. Free Technical Library News

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VIPER26K regulators with built-in MOSFET 1050 V

26.11.2019

STMicroelectronics has announced new microcircuits of the well-known ViperPlus family. This is a Viper26K with a built-in 1050V drain-to-source MOSFET.

This family of microcircuits is suitable for building power supplies with a wide range of input voltages, for example, those operating from a three-phase 380 V network.

Chips VIPER26K have two versions - with a transistor current limit of 500 mA and 700 mA. With their help, the following topologies can be implemented: isolated and non-isolated flyback converter (flyback), buck converter (buck), buck-boost converter (buck-boost).

Technical advantages:

Built-in MOSFET with a voltage of 1050 V;
Built-in quick start function;
Built-in short circuit current protection;
Built-in error amplifier for non-isolated topologies;
Consumption at idle no more than 40 mW;
Automatic overtemperature protection with hysteresis;

Main Applications:

IP powered by a three-phase network;
Three-phase electricity meters.

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