XRP7674EVB

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XRP7674EVB belongs to a family of evaluation boards designed by Texas Instruments, called Evaluation Boards - DC/DC & AC/DC (Off-Line) SMPS. As the name suggests, these boards are used to evaluate the performance of Switch Mode Power Supplies (SMPS) that employ either DC/DC or AC/DC topologies. This evaluation board is specifically designed for applications such as LED driver, offline AC/DC power supply, TV backlight etc.

The XRP7674EVB evaluation board is a complete design solution that that provides a reference platform for expert designers to quickly evaluate and debug Multi-Channel, Multi-Mode Synchronous Buck (SynBuck™) converters. This evaluation board includes the XRP7674, an integrated synchronous buck IC that can be used to drive up to four LEDs present in a buck topology with four voltage outputs. The board also includes a single-ended, switch-mode buck-boost (SMBB) converter which can be used to drive white LEDs and LED backlight applications.

The board\'s DC/DC output employs an adjustable output voltage divider network to help designers to run their tests with a wide range of static and switching outputs. The output voltage divider can also be used to power different types of LED voltages. This is an important feature of the board that allows designers to use it in a wide range of LED applications.

The board also features an integrated control logic that allows the designer to program the IC. It includes various options for single-channel or multi-channel operation as well as various switching frequencies for single or multi-channel operation, allowing the designer to fine tune the switching regulation to meet their specific application needs.

The integrated logic also allows designers to switch between many different operating modes to suit a wide range of applications. It includes a peak current limit mode for maximum current output, a pulse-width modulation (PWM) mode for low power operation, an adjustable peak voltage over-voltage protection (OVP) for safety, and a sleep mode, to name a few.

To aid in accuracy, the current and voltage range on the board can be adjusted using a 6-pin interface that is available on the board. This interface can be used to monitor the current and voltage so that the user can adjust the settings to achieve optimal performance. This feature allows the user to accurately adjust the PWM switching frequency, enabling designers to tune the board for the desired result.

In conclusion, the XRP7674EVB evaluation board offers a very powerful platform for designers to evaluate and debug Switch Mode Power Supplies. With its adjustable output voltage divider network, adjustable current and voltage range, multiple operating modes, and adjustable PWM switching frequency, the XRP7674EVB is well suited for both simple and complex LED and off-line AC/DC power supply designs.

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