industry news
Subscribe Now

New VIPer Converter from STMicroelectronics Features Market’s Highest MOSFET Breakdown Voltage, 1050V, for Robust and Reliable Power Supplies

Geneva, July 29, 2019 — The STMicroelectronics VIPer26K high-voltage converter integrates a 1050V avalanche-rugged N-channel power MOSFET that enables offline power supplies to combine a wide input-voltage range with the advantages of a simplified design.

The extremely high voltage rating of the VIPer26K MOSFET eliminates the need for conventional stacked FETs and associated passive components to achieve similar voltage capability, and smaller external snubber components can be adopted. Drain current-limit protection is built-in and the MOSFET includes a senseFET connection for over-temperature protection.

With high-voltage startup circuitry, a built-in error amplifier, and current-mode PWM controller all integrated on-chip, the VIPER26K can support all common switched-mode power supply topologies, including isolated flyback with secondary-side or primary-side regulation, non-isolated flyback with resistive feedback, buck, and buck-boost converters.

The market’s highest MOSFET breakdown voltage, together with a complete set of integrated features and minimal external circuitry let designers save bill-of-materials costs and board space while boosting reliability in applications such as power supplies for 1-phase and 3-phase smart energy meters, 3-phase industrial systems, air-conditioners, and LED lighting.

Additional benefits include internally fixed switching of frequency of 60kHz, jittered ±4kHz, combined with control of the MOSFET gate current during turn-on and turn-off to minimize switching-noise emissions. High power-conversion efficiency and no-load consumption less than 30mW help achieve high energy ratings and stringent eco-design approvals.

The VIPer26K is in production now, in SO-16N package, and priced from $0.64 for 1000-piece orders.

Please visit www.st.com/viper26k-pr for further information.

Leave a Reply

featured blogs
Aug 22, 2019
If you missed the first part of this series, you can find it here . So: what does Green Hills propose we do? The issue of '€œsolving security'€ is, at its core, impossible'€”security can never be 100%... [[ Click on the title to access the full blog on the Cadence Com...
Aug 21, 2019
Many electronics experience a wide range of climates while in operation and storage. Because of this fact, connector humidity testing is used to determine the ability of a product to withstand elevated humidity and cycling temperatures. Humidity testing is conducted in combin...