User's Manual l MBLX2160A UM 0101 l © 2022, TQ-Systems GmbH
Page 15
3.2
Power supply and PMC
The MBLX2160A has to be supplied with 24 V ±10 % (21.6 V to 26.4 V) at the 6-pin connector X40 or the 2-pin connector X4.
The maximum power consumption of the MBLX2160A can be approximately 180 W to 220 W without additional PCIe cards.
An STM µController STM32L471VET6 serves as Power Management Controller (PMC) for controlling and monitoring the power
supplies on the MBLX2160A. The PMC starts up as soon as the MBLX2160A is supplied with power. In the further course the
following points are monitored and controlled by the PMC:
•
Power-up sequencing
•
Voltage monitoring
•
Reset control of the TQMLX2160A
•
OLED display control with display of real-time data / settings
Figure 3:
Block diagram power supply
On the MBLX2160A there is a two-part supply:
•
The Standby Power Supply (VIN_FILT_STANDBY) is permanently activated for Power Management Controller / Display /
Wake Up
•
The Switched Power Supply (VIN_FILT_MAIN) ist the main power supply of the MBLX2160A. It must be activated first
and is switched off in standby mode.
The standard pinout of the 24 V power supply was adopted on the MBLX2160A:
Figure 4: Pinout 24 V Supply
(source: Mean Well)
Alternatively, as usual on TQ mainboards, a connector with screw terminals is available on the MBLX2160A. The polarity is
labeled in copper on the mainboard.
