STMicroelectronics Ultra-Wide Range Flyback Converter Development Kit for L6566BH Power Supply STEVAL-ISA211V1

STMicroelectronics STEVAL-ISA211V1 Ultra-Wide Range Flyback Converter Development Kit is specifically engineered for industrial and photovoltaic power supply applications requiring reliable auxiliary power. Based on the L6566BH multi-mode controller and the high voltage STW12N170K5 1700 V MDmesh K5 Power MOSFET, this kit uses a one-switch flyback topology with isolated output for efficient power conversion.

The converter offers a broad input voltage range starting at standard European voltages of 230 VAC, extending up to 690 VAC or 1000 VDC. It supports short-time undervoltage operations down to 150 VDC or 180 VAC at reduced output power to maintain system stability under varying supply conditions.

Operating primarily in fixed-frequency mode, the kit can be adapted to quasi-resonant mode by altering a single resistor setting, providing operational versatility. The embedded startup circuitry includes a 1 kV high voltage startup capability complemented by a modified soft-start circuit to reduce inrush currents and enhance component longevity.

The output delivers 24 V at 100 W power with reinforced insulation, making it suitable for a variety of auxiliary power supply demands. Additional features include optional brownout protection to prevent damage during voltage sags and compliance with RoHS directives ensuring environmentally responsible design.

This development kit is well-suited for engineers designing industrial power supplies or photovoltaic systems where efficiency, reliability, and adaptability are critical. It effectively helps prevent downtime and supports robust system operation across demanding conditions.

The kit utilizes L6566BH multi-mode controller and STW12N170K5 1700 V MDmesh K5 Power MOSFET in a one-switch flyback topology. Supports wide input voltage range from 230 to 690 VAC and 250 to 1000 VDC with short-time undervoltage down to 150 VDC/180 VAC.

Delivers reinforced isolated 24 V output at 100 W power suitable for auxiliary power supplies. Features selectable fixed-frequency or quasi-resonant operation modes for flexibility. Includes embedded 1 kV high voltage startup and modified soft-start circuit for reliability.

Optional brownout protection enhances system robustness. RoHS compliant ensuring environmental and safety standards. Ideal for industrial power supply and photovoltaic auxiliary SMPS applications. Explore more power management development tools and converters at EnvMart for your electronic design needs.

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