Q7-C72
Q7-C72 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Authors: A.R - Reviewed by M.B. - Copyright © 2021 SECO S.p.A
15
2.3
Electrical Specifications
According to Qseven
®
specifications, µQ7-C72 board needs to be supplied only with an ex5V
DC
power supply.
5 Volts standby voltage needs to be supplied for working in ATX mode.
For Real Time Clock working and CMOS memory data retention, it is also needed a backup battery voltage. All these voltages are supplied directly through card
edge fingers (see connector
’
s pinout).
All remaining voltages needed for board
’
s working are generated internally from +5V_RUN power rail.
2.3.1
Power Consumption
µQ7-C72 module, like all Qseven modules, needs a carrier board for its normal working. All connections with the external world come through this carrier board,
which provide also the required voltage to the board, deriving it from its power supply source.
Anyway, it has been possible to measure power consumption directly on VCC power rail (5VDC)that supplies the board.
The power consumption has been measured in three different configurations of µQ7-C72 module, on the industrial temperature range:
•
Config 1: i.MX 8M Mini Dual, DDR4 SDRAM 2 GB, eMMC 32GB, LVDS, Wi-Fi / BLE, CAN interface
•
Config 2: i.MX 8M Mini Solo, DDR4 SDRAM 1 GB, eMMC 16GB, eDP, CAN interface
•
Config 3: i.MX 8M Mini Quad, DDR4 SDRAM 4 GB, eMMC 64GB, LVDS, Wi-Fi / BLE, CAN interface
Status
Config 1
Config 2
Config 3
Average Value
Peak Value
Average Value
Peak Value
Average Value
Peak Value
Idle
1.99W 0.398A
2.1W
0.42A
2.4W
0.48A
2.43W 0.486A 2.73W 0.546A 2.82W 0.564A
Boot
2.18W 0.463A 3.61W 0.722A 2.18W
0.44A
3.12W 0.624A
2.4W
0.48A
4.09W
0.82A
Video playback
3.28W 0.659A 3.92W 0.787A 3.33W
0.66A
3.9W
0.78A
3.55W
0.71A
4.36W
0.87A
Stress Test
3.52W 0.705A 4.24W 0.848A 3.58W 0.715A 3.95W 0.791A 4.56W 0.918A 5.02W
1A
Battery Backup (VCC_RTC)
590nA
Suspend
N.A.
Soft-Off (VCC_5V_SB)
18mA
