User's Manual l TQMa8MxML UM 0103 l © 2022, TQ-Systems GmbH
Page 44
3.2.9
Power
3.2.9.1
Power supply
The TQMa8MxML requires a supply voltage of 5 V ±5 %.
The following block diagram shows the TQMa8MxML power supply.
LGA
VCC2
VCC1
VCCn
5 V
i.MX 8M Mini / Nano
PMIC
PCA9450
Module components
Figure 22: Block diagram TQMa8MxML power supply
The characteristics and functions of the single pins and signals are to be taken from the PMIC Data Sheet (7), and the
i.MX 8M Mini Reference Manual (2).
3.2.9.2
Power consumption
The given power consumption has to be seen as an approximate value.
The power consumption strongly depends on the application, the mode of operation and the operating system.
For more information on power consumption and savings options, see NXP Application Note AN12410 (10) and AN12269 .
The following table shows the TQMa8MxML and TQMa8MxNL current and power consumptions at 5 V (±5 %) supply voltage:
Table 37:
TQMa8MxML power consumption
Mode of operation
TQMa8MxML
TQMa8MxNL
U-Boot idle (prompt)
227 mA / 1,135 mW
163.3 mA / 816.5 mW
Linux idle (prompt)
159 mA / 795 mW
113.9 mA / 569,5 mW
Linux 100 % CPU load (stress test)
379 mA / 1,895 mW
301.9 mA / 1,509.5 mW
Off-Mode (PMIC_RST# = Low)
28.5 mA / 142.5 mW
9.7 mA / 48.5 mW
Current consumption theoretical worst case
(design base for module supply)
3.25 A / 16.25 W
