User's Manual l MBa57xx UM 0100 l © 2020, TQ-Systems GmbH
Page 17
4.1.7
Power supply
Illustration 7:
Block diagram power supply
The MBa57xx is supplied with 24 V via X23 or X24. From this voltage 1.0 V, 1.5 V, 2.5 V, 3.3 V, 5 V and 12 V are generated on the
MBa57xx. These voltages are used to supply the components on the MBa57xx. All connectors share the available power.
The following table shows the voltages at the interfaces and headers on the MBa57xx.
Table 14:
Voltages at MBa57xx headers
Connector
1.5 V
3.3 V
5 V
12 V
X11 (JTAG), X12, X13 (100 Mbit Eth), X14 (SD card), X26 (SATA)
–
Yes
–
–
X29 (mPCIe)
Yes
Yes
–
–
X37, X45, X47, X49, X56 (RGB)
–
Yes
Yes
Yes
X41 (PCIe)
–
Yes
–
Yes
X54 (LVDS)
–
Yes
Yes
–
X55 (LVDS CMD)
–
–
Yes
Yes
Attention:
Usage of PMIC_REGEN1
VCC3V3 and VDDSHV10_1V8_3V3 on the carrier board should be switched with signal PMIC_REGEN1
by the TQMa57xx, to avoid cross supply and errors in the power-up/down sequence.
1:
Supplied by VCC3V3_DISPLAY.