STEVAL-ISA103V1

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STEVAL-ISA103V1 is an AC–DC power supply evaluation board designed as an auxiliary power supply in a modular system for lighting applications. It offers single output power supplies up to 12V, a wide range of output power levels, high efficiency and good power density. The power supply features high power factor correction, low standby power, standby power management functionality and a wide operating temperature range.

The STEVAL-ISA103V1 has been designed to drive LED applications with a constant current of 350 mA. It is rated to a maximum power of 48 Watts with both a low-power power stage and a high-power power stage. The board\'s input voltage range is from 85 to 305 VAC, and includes universal AC input line protection with integrated mains filter. In addition, it features a number of protection functions, such as overvoltage, short-circuit, overcurrent and thermal protection.

The STEVAL-ISA103V1 evaluation board has an on-board processor to control some of the power supply functions, such as the system\'s power factor correction (PFC) and other LED driver functions. Various settings can be accessed to configure the system for different applications through I2C, directly from the STeval-ISA103V1. In addition, the board features an external microcontroller, an Ethernet interface (Ethernet).

The board design is based on an integrated Fly-Bobbins construction featuring an ST PSR series PFC controller and SMPS topology to fit the universal input and deliver a constant 350mA DC output with the highest power factor, efficiency levels and low total harmonic distortion. The board layout takes advantage of several components required for the system\'s specific operation, including two line filters, two RCD components and an inductor.

The on-board processor features a comprehensive set of settings and configurations that enable the design team to configure the system for specific requirements such as LED power level, ambient light level and temperature setting. It also features a comprehensive control panel with setting justifications which enable the user to analyze the system and configure it to their needs.

The STEVAL-ISA103V1 is an extremely versatile and reliable power supply. It is capable of powering a wide range of applications, from LED lighting applications, electronic ballast and lighting dimmer controllers to computer/laptop adapter applications. The design allows for the unit to be used with a wide range of AC supply voltages, and the unit can even be reduced in size to fit into applications that require a very small device. The board includes several protection components and built-in safety controls, making it an extremely safe and reliable device.

The STEVAL-ISA103V1 is an excellent choice for providing reliable, efficient power for a wide range of applications and is suitable for a variety of applications, including LED lighting, electronic ballast, dimming, hot-swap applications, and general power supply applications. This evaluation board can also act as a reference design in portable devices, DC-to-DC converters and buck-boost regulators.

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