Power Supply; Voltage Requirements; Inrush Current - RadiSys PROCELERANT CE915GMA Product Manual

Power supply

Voltage requirements

Inrush current

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The power of CE915GM modules comes from the carrier board, and there is a common 3V
battery supply for the real-time clock (RTC). Power supply requirements are as follows.
Supply Current/Watts
12V 4.1A/49W
5V Standby 1A/5W
1
3V Battery 6µA
1 The inrush current will be higher than this value during system
boot on the 5V standby power rail.
The inrush current to the module depends on the rise time of the main power from the
carrier board.
Figure 8 and Figure 9 show the inrush currents when the power supply is 12V with 5V
standby.
Maximum Ripple
DC 5% ripple 100mV @ 0~20MHz
DC 5% ripple 50mV @ 0~20MHz
2.0 — 3.6V
Figure 8. Inrush current @ 12V
Figure 9. Inrush current @ +5V standby
3
Power supply
25