ISL88731CEVAL2Z

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The ISL88731CEVAL2Z is a compact and powerful evaluation and demonstration board for the ISL88731 current mode, energy efficient, multi-phase PWM controller. The board is designed for testing and fine tuning the parameters and features of the processor under realistic load conditions and assessing the performance of the complete power supply system.

The ISL88731CEVAL2Z board provides a comprehensive solution for evaluating the features, performance, and robustness of the ISL88731 current mode pulse width modulation (PWM) controller. In addition, the board is capable of accurately characterizing and monitoring the system performance under real world load conditions in order to corroborate the energy efficiency and power savings provided by the controller.

The board includes a top side printed circuit board (PCB) equipped with a host of features for monitoring and controlling the power supply system. The board includes two input voltage regulators – VIN_A and VIN_B – for powering the board, a LDO regulator and a pre-charged output voltage regulator for the bias voltage. An adjustable soft-start circuit allows for gradual start-up on system power up. The board also features watchdog timer and a power good status output.

The board has two 6 pin headers for monitoring the input and output voltages, as well as current monitoring, enabling engineering teams to observe the response of the ISL88731 under real world load conditions. On-board test points can provide detailed information on the waveforms of the power supply system under test and enable the user to fine tune the parameters of the power converter using the ISL88731 driver software.

The ISL88731CEVAL2Z board incorporates two onboard power decoupling capacitors, which help suppress high frequency noise and optimize system performance. The board also includes a comprehensive selection of power components that are required for multiple output configurations and different topologies. The components on the board are foreign object detection (FOD) rated in order to become compliant with HIPAA Class 01 regulations.

The ISL88731CEVAL2Z board provides a wide range of output voltages, all configurable via the onboard programmable option. Output voltages up to 58V are achievable, allowing for a wide range of end applications. Operating in high-current ripple mode allows for high efficiency operation, ensuring increased power savings for devices from low to medium power usage. The ISL88731C driver software, downloadable from Intersil’s website, can be used to configure the board and fine-tune its performance parameters.

In conclusion, the ISL88731CEVAL2Z board provides a complete evaluation and demonstration platform for the ISL88731 PWM controller. The board enables designers and engineers to properly assess the features and performance of the controller under realistic load conditions. The ISL88731CEVAL2Z board’s combination of test points, soft-start circuit, power good status indicator, and on-board component selection allows designers and engineers to quickly and accurately evaluate the performance of their design. The wide array of output voltages achievable on the board allows engineers to work on different applications and topologies, ensuring maximum power savings and efficiency.

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