MAXREFDES112A#

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MAXREFDES112A is an evaluation board specifically designed for switched mode power supply (SMPS) applications. The evaluation board features a full DC/DC and AC/DC SMPS solution which can be used as a single-ended or bridgeless power supply. The board provides a comprehensive set of power components and evaluation tools to enable easy design and evaluation of SMPS. The board is suitable for a wide range of applications, such as automotive, industrial, consumer, medical, and aerospace.

The MAXREFDES112A board consists of the following components: an Intersil ISL88644A, a 4-phase synchronous buck controller; a MAXQ3620B, an input pi and a current sense amplifier; a MAXQ4887C, an integrated half-bridge switch controller; a MAXQ4754, a complementary gate driver; and a MAXQ1048, a step-down switch mode power supply controller. The board also includes a range of evaluation tools, such as a 5V, 20A DC power supply, a step-up IO supply, a UI LED driver, an embedded A/D and D/A converter, a SPI interface, and an I2C programmer.

The MAXREFDES112A evaluation board combines the features of a full DC/DC and AC/DC SMPS solution in a single board. It is capable of operating in either single-ended of bridgeless topologies, making it suitable for a wide range of applications. The MAXREFDES112A combines the advantages of using high-frequency synchronous switching, which significantly reduces part count and overall size, with the flexibility of programmable digital small signal control, making it a highly efficient and cost-effective solution.

The working principle of the MAXREFDES112A evaluation board is based on synchronous switching technology. The ISL88644A is a 4-phase synchronous buck controller which generates a switching signal in response to the feedback voltage developed across the current sense amplifiers. The synchronous switches are controlled and regulated by the MAXQ4887C integrated half-bridge switch controller, which provides a wide range of features such as adjustable current limit and fixed operating frequency. The MAXQ4754 is a complementary gate driver which receives the switching signal from the MAXQ4887C and drives the MOSFETs switches to generate the desired output voltage.

The MAXREFDES112A evaluation board also features a 5V, 20A DC power supply, a step-up IO supply, a UI LED driver, an embedded A/D and D/A converter, a SPI interface, and an I2C programmer. These features provide designers with the flexibility and ease of use needed to quickly evaluate and test SMPS designs. Additionally, the MAXREFDES112A offers optional in-system programming for DC voltage and frequency, as well as overvoltage, short-circuit, temperature and other protection features.

In summary, the MAXREFDES112A is a comprehensive evaluation board for DC/DC and AC/DC SMPS tests and evaluation. It features a full DC/DC and AC/DC SMPS solution which can be used as a single-ended or bridgeless power supply. The board also includes a range of evaluation tools, such as a 5V, 20A DC power supply, a step-up IO supply, a UI LED driver, an embedded A/D and D/A converter, a SPI interface, and an I2C programmer. The board is suitable for a wide range of applications, such as automotive, industrial, consumer, medical, and aerospace.

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