STEVAL-ISA033V1

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The STEVAL-ISA033V1 evaluation board demonstrates the effectiveness, efficiency and small footprint of the STM013L02 Flyback controller. This controller\'s integrated 500 V, 0.45 A and 5 A switch is suitable for off-line secondary-side isolated flyback converter applications with universal input mains and up to 12 watt output. This board is a great platform for testing and evaluation of the STM013L02 converter with a range of protection features.

The STEVAL-ISA033V1 evaluation board features a primary-side control loop based on the primary-side regulation (PSR) technology, which regulates the output voltage without the need for energy transfer from the primary to the secondary side. This device is also able to provide both protection features and a diagnostic LED, which is used for feedback. The board also includes galvanic isolation between primary-side circuit and output-side circuit. The integrated high-voltage (HV) switch is also capable of providing soft-start and overvoltage protection.

When it comes to working principle, the STEVAL-ISA033V1 board works by relying on both the windings of the flyback transformer to regulate the output voltage. It allows the current to pass from the DC input to the primary winding, which stores and releases energy to the secondary winding. This energy in the secondary winding is then converted to a regulated output voltage through the secondary-side rectifier and filter. The STM013L02 controller is capable of offering high efficiency over a wide range of input voltage.

To make this device succeed in its field of usage, the STEVAL-ISA033V1 board is equipped with a range of protection features to ensure that the device runs reliably and safely. These features include peak current protection, soft-start, overcurrent protection, overvoltage protection and Under Voltage Lock-Out (UVLO). The board also includes an Effective-power-loss diagnostic to detect whether the board is operated in overload and power-loss conditions.

In conclusion, the STEVAL-ISA033V1 evaluation board is a great platform for testing and evaluation of off-line secondary-side isolated flyback converters with the integrated 500 V, 0.45 A and 5 A switch for universal input mains and up to 12 watt output. This device also offers a range of protection features and diagnostic LED, as well as the primary-side control loop based on primary-side regulation technology to regulate output voltage. In addition, the integrated high-voltage switch is also capable of providing soft-start and overvoltage protection.

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