MicroSys miriac SBC-LX2160A, User Manual

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System Description 4
miriac SBC-LX2160A User Manual V 1.6 26/71
© MicroSys Electronics GmbH 2021
The expected maximum power consumption of individual components, sub-circuits
and peripherals are listed in the following table.
Component Voltage
rail
Current consumption
maximum
Power consumption
maximum
CPU module 12V 5.0A 60W
QSFP+ slot 3.3V 350mA (SR) / 1.25A (LR) 4.2W
SFP+ slot (2x) 3.3V 300mA (SR) / 1.0A (LR) 2x 3.3W
SATA power (4x) 12V
Direct connection from
ATX power supply
4x
1…10W
5V
3.3V
USB power (5x) 5V 0.9A 5x 4.5W
PCIe slot (2x) 12V 2.1A
2x
35W
3.3V 3.0A
Fan 12V 0.85A 10W
40G /100G PHY
(88X5113)
3.3V 50mA 0.16W
1.0V 1.5A 2x 1.5W
0.95V 2.1A 2W
10G PHY (2x
88X3310P) 3.3V 156mA
2x
3.5W
2.5V 246mA
1.8V 380mA
1.5V 503mA
0.88V 1581mA
1GE PHY (2x 88E1512) 3.3V 166mA 2x 0.55W
RS485 (LTC2865) 5V 50mA 250mW
MicroSD 3.3V 300mA 1W
CAN-FD
(2x MCP2562FD) 5V 70mA 2x 350mW
1.8V 0,5mA Module VCC1V8OUT
USB Hub (TUSB8041) 3.3V 99mA 0.33W
1.1V 778mA 0,86W
Other peripherals 3.3V 200mA 0.66W
Table 4-4 Current consumption components and peripherals
4.6.4 RTC Backup
The RTC backup voltage supplied to the MPX-LX2160 SoM is provided by a 0.47F
PowerCap.
4.6.5 SoM Current and Power Measurement
For measuring the MPX-LX2160A supply current, the carrierboard provides two
parallel 10
mΩ shunt resistors (5 mΩ total) in the 12VDC rail.
For automated power measurements, an I²C current sense amplifier with voltage
sense (MAX9611AUB) is connected over the shunt.