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Xilinx provide a power estimator excel sheets to calculate power consumption. It's also possible to evaluate the power consumption of the developed design with Vivado. See also Trenz Electronic Wiki FAQ.
Power
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-On Sequence Diagram
The power-on sequence of the on-board DC-DC converters depens on the current firmware of the System Controller CPLD U39.
Following diagram visualizes the connection of the DC-DC converter control signals ('Enable', 'Power-Good') with System Controller CPLD U39, which enables the particular on-board voltages.
Figure 12: Power-On Sequence Utilizing DCDC Converter Control Signals
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As shown in Figure 12, the DIP switch S4-4 has to be closed if using only 12V single power supply through 12V power jack J25, otherwise the 5V voltage level will not be enabled to generate the 3V3SB voltage to power up the SC CPLD U39 and starting the power-on sequence. |
The TEBF0808 carrier board manages both the power-on sequence of the mounted TE0808 SoM and the on-board DC-DC converters via System Controller CPLD U39.
The power-on sequence of the TE0808 SoM is managed by utilizing the SoM's DC-DC converter control signals ('Enable', 'Power-Good'), so the DC-DC converters of the SoM dedicated to the particular Power Domains of the Zynq Ultrascale+ MPSoC will be powerer-up in a specific sequence to meet the recommended criteria to power up the Xilinx Zynq Ultrascale+ MPSoC properly.
Figure 12: Power-On Sequence Utilizing DCDC Converter Control Signals
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| To avoid any damages to the MPSoC module, check for stabilized on-board voltages in steady state before powering up the MPSoC's I/O bank voltages VCCOx. All I/O's should be tri-stated during power-on sequence. |
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Current rating of Samtec Razor Beam™ LSHM B2B connectors is 2.0A per pin (2 adjacent pins powered). |
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B2B connectors
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