MCP1630DM-DDBK4

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The MCP1630DM-DDBK4 is a powerful and versatile evaluation board specifically designed for DC/DC and AC/DC (off-line) Switch Mode Power Supplies (SMPS). Its features include an adjustable switching frequency (100kHz to 400kHz) which allows for a varying set of applications such as high speed operation for chargers/dischargers, or slow speed operation for low noise applications. An integrated multi-channel and multi-function ADC allows for measurements of output current and voltage, input current, active and inactive switch currents, input power, and output power. The board also features several inputs for control signals and protection functions.

The MCP1630DM-DDBK4 uses the Microchip MCP1630 2A synchronous buck controller, which is capable of controlling a wide range of buck topologies such as flyback, forward and LLC. The controller combined with the proprietary predictive auto-frequencyfoldback (PAFB) ability allows for an even wider selection of buck topologies with the same simplicity as a standard synchronous buck. The PAFB feedback algorithm allows the MCP1630 controller to adaptively adjust the switching frequency as required by the application, greatly reducing the number of components and simplifying the design.

The MCP1630DM-DDBK4 also provides an integrated power switch for optimal gate drive and current sensing, and an integrated MOSFET for dissipating dissipating the switch losses. The integrated power switch is controlled internally by an onboard microcontroller, making the evaluation board highly configurable and expandable. Furthermore, since the integrated power switch can be operated with constant current as well as constant voltage, it can be easily adjusted to match the performance requirements of the application.

To further simplify the design and reduce external components, the MCP1630DM-DDBK4 board includes several built-in protection features such as over-voltage, over-current, and short-circuit protections. The board also features external adjustable switching thresholds, allowing the user to change the switching frequency as needed. Additionally, an open loop compensation network can be configured in the device for improved stability.

In summary, the MCP1630DM-DDBK4 evaluation board is an ideal development platform for DC/DC and AC/DC (off-line) SMPS. Its integrated features, ranging from programmable frequency folding, various control signals, protection features, and robustness, make the board an excellent choice for a myriad of applications ranging from low power, high speed switching, low noise, and highly efficient designs.

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