STEVAL-ISA189V1

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The STEVAL-ISA189V1 Evaluation Board is a versatile application circuit for evaluating the STNRGPF01, STNRGPF03, STNRGPF05 and STNRGPF09 family of system-in-package (SiP) flyback converter with integrated high side MOSFET STNRG-PCS products, and other similar solutions. This evaluation board is part of a power supply system-in-package (SiP) based on an analog PFC controller, an offline secondary-side synchronous rectification controller, a DC-DC Dunning converter, and a transformer with an integrated low-side MOSFET (LOW-MOS). This system is designed to provide an AC/DC power supply for a wide variety of applications, such as white goods, power tools, motor control, and consumer electronics.The STEVAL-ISA189V1 Evaluation Board has been designed to provide engineers and designers the ability to quickly evaluate the performance of a range of SiP solutions by providing an easy-to-use platform for testing the system. The evaluation board includes several onboard connectors that allow users to attach the evaluation board to a load or to a power source. It also includes a thermistor circuit that monitors the temperature of the board and provides feedback on its performance.The STEVAL-ISA189V1 Evaluation Board is based on a synchronous buck topology. The board’s input voltage range is between 90V and 132V AC. It is capable of regulating an output voltage from 1.5V to 5.5V and delivering up to 25W of power. The evaluation board incorporates an integrated high-side MOSFET and a low-side MOSFET, as well as a flyback transformer with an integrated output sensor. It features a wide input frequency range of 50 Hz to 400 Hz.The STEVAL-ISA189V1 Evaluation Board features a low-side MOSFET active clamp circuit that provides overcurrent protection. This active clamp circuit helps minimize switching losses and allows higher S/N ratios due to lower EMI levels. It also features an integrated output capacitor that helps to reduce output ripple. It also includes an integrated output comparator circuit that allows for tracking the output voltage without relying on external components.The STEVAL-ISA189V1 Evaluation Board is easy to configure using a DIP switch. It allows users to toggle between VCC and VDD modes for fast and accurate startup. It features an internal pull-down resistor which helps reduce the switching noise generated by the MOSFETs. It also includes a soft start circuit to minimize the inrush current during startup.The STEVAL-ISA189V1 Evaluation Board allows users to simulate a variety of signal outputs with different duty cycles to help evaluate the response and accuracy of the power supply. This can be done by connecting the oscilloscope probes to the gate of the low-side MOSFET and to the output VOUT. This provides a useful tool to monitor the fast switching and transient response of the power supplyIn summary, the STEVAL-ISA189V1 Evaluation Board is a versatile development tool that provides engineers and designers with an easy-to-use platform for evaluating the system-in-package solutions. It is capable of simulating a range of signal outputs with different duty cycles to help evaluate the response and accuracy of the power supply quickly and accurately. It also incorporates a wide input frequency range and integrated protection features. With all these features, the STEVAL-ISA189V1 Evaluation Board is ideal for DC/DC and AC/DC (off-line) SMPS applications.

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