ISL6521EVAL1Z

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The ISL6521EVAL1Z application field and working principle has been widely used in the DC/DC & AC/DC (Off-Line) SMPS industry. It has earned an enviable reputation for its reliability and impressive performance. This evaluation board provides designers with the flexibility to quickly evaluate the performance of the ISL6521 dual-channel synchronous buck controller featuring an integrated non-isolated driver and operating at a maximum of 200kHz. The evaluation board is offered with the wide range of protected output voltage options, including 1.8V, 2.5V, 3.3V and 5.0V. The board also includes monitoring and control facilities to access the controller status information.

The main building block of the evaluation board is the ISL6521, a two-phase PWM Synchronous Buck controller driven by the internal non-isolated ISL6521 driver. The combination of two channels with a non-isolated driver provides complete dual phase enabled single output applications. The ISL6521 offers dual phase power conversion with an input authentication circuit to reduce power dissipation when no input voltage is present. The single-output configuration requires only one MOSFET plus one Schottky diode with low losses to drive an output voltage up to 28V.

The board is equipped with two adjustable voltage regulators to provide voltage to the logic and bootstrap pins. The eval1 board supports programmable phase-shifted PWM control by adjusting the PWM ratio of the positive and negative channels (phase shift range from 0° to 360°).

The ISL6521EVAL1Z allows designers to evaluate the performance of the ISL6521 controller itself and to test the behavior of the complete power supply. The board also supports programmable current/voltage/temperature sensing and monitoring. Other features include the ability to read out the controller’s output and input information and program it to any required output voltage or current.

The ISL6521EVAL1Z also comes with a comprehensive set of protection features that protect the load from overvoltage conditions, overcurrent events, short circuit protection, and thermal shutdowns. The ISL6521 EVAL1Z evaluation board supports faster design cycles, as it enables designers to quickly evaluate the performance and stability of the ISL6521 controller, and test the behavior of the complete power supply.

The ISL6521EVAL1Z also ensures a cost-effective production process by providing complete protection to the load from overvoltage and overcurrent conditions, thermal shutdowns, and short circuit protection. The evaluation board ensures high efficiency in a variety of SMPS applications and reduces the backlog time for design engineers.

In addition, the ISL6521EVAL1Z offers several features that make it a great choice for designers. It provides a comprehensive set of enable/disable, reset and reference input signals for ease of use, as well as detailed monitoring and control information for optimizing the efficiency of the controller.

In conclusion, the ISL6521EVAL1Z is an ideal evaluation board for a wide range of DC/DC & AC/DC (Off-Line) SMPS applications. It combines the features of the ISL6521 synchronous buck controller and its integrated non-isolated driver to ensure reliable performance in a variety of conditions. It also offers a comprehensive set of monitoring and control functions and the robust protection features required to protect the load from overvoltage, overcurrent, and thermal shutdowns. This board ensures high design-in margins that facilitate a faster development cycle, enabling designers to quickly evaluate the performance of the controller and test the behavior of the complete power supply.

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