STMicroelectronics 38V 5 W Synchronous Iso-Buck Converter Evaluation Board STEVAL-A6986IV1

STMicroelectronics STEVAL-A6986IV1 is a 38V 5 W Synchronous Iso-Buck Converter Evaluation Board designed to facilitate isolated power conversion applications. The board employs the ST A6986I automotive grade synchronous iso-buck converter, making it suitable for precise and reliable power management in industrial and automotive environments.

The primary output voltage of the board is highly adjustable, allowing for accurate control that meets specific application requirements. The isolated secondary output is achieved through a transformer based design, eliminating the need for optocouplers and simplifying the design while maintaining effective isolation.

With a primary sink capability of typically 1.9 A, the board ensures efficient energy transfer to the secondary side. This enables a tracked soft-start of the secondary output, providing smooth power ramp-up and reducing stress on components.

Key integrated protective features include an embedded primary output voltage supervisor, adjustable soft-start time, internal primary current limiting, and comprehensive overvoltage protection. These safeguards enhance the board’s reliability and suitability for rigorous industrial and automotive conditions.

This evaluation board is intended for use with IGBT and SiC MOSFET devices, offering design flexibility for power electronics development. It is categorized in the evaluation board kits, making it an ideal tool for engineers focusing on power management and isolation converter designs.

The board features a synchronous iso-buck converter rated at 38 V and 5 W output power. Adjustable primary output voltage with transformer-isolated secondary output. No optocoupler required for isolation thanks to transformer design.

Primary sink current capability of approximately 1.9 A supports effective energy transfer. Integrated protection with current limiting, overvoltage protection, and voltage supervision. Soft-start timing is adjustable for controlled output ramp-up.

Kit is classified as an automotive-grade evaluation board with AEC-Q100 approval.

The STEVAL-A6986IV1 is ideal for various industrial, automotive, and power electronics development applications requiring isolated DC/DC conversion with high efficiency and strong protection features. This evaluation board supports rapid prototyping and performance testing of the A6986I device within safe electric isolation conditions.

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