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Power Supply Requirements

Section 8 of the MitySOM-5CSX Carrier Board Design Guide [pdf] contains details concerning power consumption and heat dissipation. Note that the MitySOM-5CSX Development Board includes a current monitor IC, which monitors the +5V supply feeding just the MitySOM-5CSX. This LTC2945 device can be utilized to determine the instantaneous power draw of the module.

Typical Power Consumption

5CSX-H6-42A-RC
Input Voltage Usage State Power Usage
5.0V Input Reset held 950mW (190mA)
5.0V Input FPGA not programmed, Linux Prompt 2100mW (420mA)
5.0V Input FPGA Programmed [1], Linux Prompt 2700mW (540mA)
800MHz Dual Core with 110KLE, 1024MB DDR3 HPS RAM and 256MB FPGA DDR
5CSE-H4-3YA-RI
Input Voltage Usage State Power Usage
5.0V Input FPGA not programmed, Linux Idle 1970mW (394mA)
5.0V Input FPGA not programmed, Linux 100% Load [2] 2170mW (434mA)
5.0V Input FPGA Programmed [1], Linux Idle 2070mW (414mA)
5.0V Input FPGA Programmed [1], Linux 100% Load [2] 2300mW (460mA)
800MHz Dual Core with 40 KLE, 1024MB DDR3 HPS RAM and No FPGA DDR
5CSE-L2-3Y8-RC
Input Voltage Usage State Power Usage
5.0V Input FPGA not programmed, Linux Idle 1770mW (354mA)
5.0V Input FPGA not programmed, Linux 100% Load [2] 1900mW (380mA)
5.0V Input FPGA Programmed [1], Linux Idle 1840mW (368mA)
5.0V Input FPGA Programmed [1], Linux 100% Load [2] 2000mW (400mA)
600MHz Single Core with 25KLE, 512MB DDR3 HPS RAM and No FPGA DDR

[1] FPGA programmed with MitySOM-5CSx Development Kit sample FPGA which incorporates the FPGA DDR memory and more (https://support.criticallink.com/redmine/projects/5csxbase/wiki/Building_the_provided_FPGA_project)
[2] 100% CPU load achieved by running the following command from the serial port: dd if=/dev/zero of=/dev/null &

Maximum Power Consumption

The maximum power consumption of the module is going to be highly dependent upon the actual usage of the module. We recommend customers utilize the Altera Power Play Estimator (http://www.altera.com/support/devices/power/pow-power.html) to approximate how much power their specific application may require. Below are some of the absolute maximums based upon the power play estimator:

5CSX-H6-42A-RC: 8.5W+ [3]
5CSE-L2-3Y8-RC: 4.2W+ [3]
5CSX-H6-53B-RC: 8.4W+ [3]

[3] These estimates are only for the Cyclone V processor. Additional current consumption should be added for the on-module USB phy, power supplies, I2C eeprom and other devices.

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