ISL8120EVAL4Z

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ISL8120EVAL4Z is an evaluation board that is designed for a simple interface to various universal input, isolated DC/DC switching regulator applications. It provides a comprehensive set of features including short-circuit protection, auto restart, and programmable under-voltage lockout. The board can control currents up to 16A and provides high efficiency and excellent line and load regulation.

The ISL8120EVAL4Z evaluation board is designed to demonstrate the ISL8120 switching regulator controller\'s power conversion and control features in a few easy steps. This evaluation board is suitable for a variety of applications, such as light-load power supply, fan motor control, home/industrial power electronic devices and automotive AC/DC power supply.

The ISL8120EVAL4Z evaluation board has two power switches, one input and one output. The input switch is for the input AC voltage range of 36V to 72V, while the output switch is for the isolated output voltage range of 1.81V to 60V DC. The power switches are diode-isolated and are controlled by the PWM signal generated by the ISL8120, which is connected to an external clock circuit (which can be configured to 50kHz to 1MHz).

The ISL8120 features several power control and protection features, such as over-voltage protection (OVP) and under-voltage protection (UVP), short-circuit protection (SCP), cycle-by-cycle current limit (CBCL), and programmable soft-start. The optimized design of the IC, together with the external components on the board, ensures the great performance of the power system, including excellent line and load regulation, short transient response time, and high efficiency.

The ISL8120EVAL4Z evaluation board provides two modes of operation: voltage-mode control and current-mode control. In voltage-mode control, the output voltage is regulated by the internal error amplifier. In current-mode control, the output current is regulated by a current sense resistor. The ISL8120 is capable of operating in either voltage-mode or current-mode control, and the user can select the appropriate operation mode by setting the VIND or current-limit jumper.

The board also provides two user-adjustable features: soft-start and brown-out protection. The soft-start feature can be adjusted via the soft-start potentiometer, while the brown-out protection can be adjusted via the power-on reset circuit.

Overall, the ISL8120EVAL4Z evaluation board provides an easy-to-use platform for evaluating the features of the ISL8120 switching regulator controller. With its comprehensive set of features and adjustable parameters, the board is suitable for a wide range of applications, such as light-load power supply, fan motor control, home/industrial power electronic devices, and automotive AC/DC power supply.

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