Technical product specification

Technical Reference
55
Figure 22 shows the height dimensions of the board.
Figure 22. Board Height Dimensions
2.5 Electrical Considerations
2.5.1 Power Supply Considerations
System power requirements will depend on actual system configurations chosen by the
integrator, as well as end user expansion preferences. It is the system integrator’s responsibility
to ensure an appropriate power budget for the system configuration is properly assessed based
on the system-level components chosen.
Table 27. Power Budget for Assessing the DC-to-DC Circuit’s Power Rating (worst case:
Embedded board in 3
rd
party chassis)
DE3815TYBE
(3
rd
party chassis)
Max Power
Rating (W)
Power Req
1
(W) Util Budget
5 W SoC 5 5.9 85% 5.0
8 GB DDR3L
2
5 5.9 95% 5.6
4 GB eMMC 0.72 0.8 95% 0.8
1 x USB3 (std 900mA)
3
4.5 5.3 100% 5.3
2 x USB2 (std 500mA)
4
5 5.9 100% 5.9
3 x USB2 (std 500mA)
4
7.5 8.8 100% 8.8
PCIe* HMC
5
5 5.9 23% 1.4
SATA power
6
5.0 5.9 100% 5.9
LAN, video, audio, other 2.9 3.4 95% 3.2
Custom Solutions 12.55 14.8 100% 14.8
eDP LCD w/LED backlight 20 25.0 95% 23.8
Total System Power 80.4
Notes:
1. Power requirements estimated at 85% efficiency (combined AC adapter + DC-to-DC/VR).
2. 8 GB power consumption estimation: (1.35V*0.230A)x16=4.968 W.
3. 100% utilization for USB3 refers to current draw of 900mA (out of 900mA max).
4. 100% utilization for USB2 refers to current draw of 500mA on all ports (500mA/port max).
5. 23% utilization for Half-Mini Card refers to estimation of 1.15 W power consumption of typical 802.11bgn mini-card.
6. 100% utilization for SATA refers to 1A (5 W)) 2.5” HDD power consumption.