STEVAL-ISA111V1

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The STEVAL-ISA111V1 is an evaluation board dedicated to SMPS (Switched Mode Power Supply) with flyback topology and is suitable for DC/DC and AC/DC (off-line) applications. This evaluation board is mainly designed to control electronic ballasts and adds features like dimming, auto-restart, emergency backup, burn-in mode, and sleep mode to these specific devices. The bottom of the board is equipped with a connector to facilitate measurements of the output current.

The STEVAL-ISA111V1 is based on the high-voltage LINFlexD LIN slave controller ISP1561 and features an HV clamp pair circuit for the protection of the main switches. It is known for its low start-up current and soft-start. The voltage at the start-up is adjustable by setting the parameters of the external resistor RAS. Moreover, a feed-forward feature helps maintain constant output voltage while load fluctuations occur.

The board is also equipped with an ATtiny204 microcontroller which offers access to specific features such as dimming, emergency backup, burn-in mode, and sleep mode. The controller also features precise current measurement and feedback from the output, which is used to monitor and correct any deviations, such as overcurrent or overvoltage.

The STEVAL-ISA111V1 evaluation board is also based on the Infineon TTTR100 series of dedicated controller ICs, which are highly integrated solutions for power management. The TTTR100 integrates several advanced control and protection functions, such as over-power protection, over-temperature protection, and current mode control. This makes it an ideal solution for applications that require robust and efficient power supply regulation.

The STEVAL-ISA111V1 is designed for DC/DC and AC/DC (off-line) SMPS applications. It utilizes a high-voltage LINFlexD LIN slave controller ISP1561 and high-voltage clamp pair circuit for the protection of the main switches. With its precise current measurement and feedback from the output, it ensures a constant output voltage while load fluctuations occur. Furthermore, the ATtiny204 microcontroller features several features such as dimming, emergency backup, burn-in mode, and sleep mode. Additionally, the Infineon TTTR100 series controller ICs offer advanced protection functions, making it an ideal solution for applications with power management requirements. All of these features make this evaluation board an important tool for customers in the DC/DC or AC/DC (off-line) SMPS applications field.

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