BORA Lite SOM/BORA Lite Hardware/Electrical Thermal and Mechanical Features/Operational characteristics

History
Issue Date	Notes
2021/09/22	New documentation layout

Operational characteristics

Maximum ratings

Parameter	Min	Typ	Max	Unit
Main power supply voltage	-0.3	3.3	3.6	V

Recommended ratings

Parameter	Min	Typ	Max	Unit
Main power supply voltage	3.135	3.3	3.465	V

Power consumption

Providing theoretical maximum power consumption value would be useless for the majority of system designers building their application upon BORA Lite module. Practically speaking, these figures would be of no help when it comes to size power supply unit or to perform thermal design of real systems.

Instead, several configurations have been tested in order to provide figures that are measured on real-world use cases.

Please note that BORA Lite platform is so flexible that it is virtually impossible to test for all possible configurations and applications on the market. The use cases here presented should cover most of real-world scenarios. However actual customer's application might require more power than values reported here or customer's use case may be differ significantly with respect to the ones here considered.

Therefore, application-specific requirements have always to be taken into consideration in order to size power supply unit and to implement thermal management properly.

Use cases results

Measurements have been performed on the BORA Lite SOM under test is equipped with:

• XC7Z020-1
• 1 GB DDR3L SDRAM
• 16 MB NOR SPI
• 1 GB NAND SLC

Test conditions

• 2 x burnCortexA9
• FPGA test bitstream
• memtester 50M loop
• file copy and verify (md5sum) on SD card
• file copy and verify (md5sum) on USB memory key
• mtd test on NAND
  • mtd_speedtest
  • mtd_stresstest
  • mtd_readtest
  • mtd_pagetest
  • mtd_subpagetest
• iperf (client) loop on eth0

The table below reports the power consumption measurements for the considered use cases.

Test type	Power (mW)
Stress test	max 7.85W (mean 3.37 W)

---