Power Management; On-Board Voltage Supply Requirement; Power Up Sequencing Requirements; Table 4-6 Voltage Supply Requirement - SMART Embedded Computing Penguin Edge MVME250 Series Installation And User Manual

Functional Description
4.15

Power Management

The MVME2502 backplane is utilized to derive +3.3V, +2.5V, +1.8V, +1.5V, +1.2V, +1.05V
voltage rail. Each voltage rail is controlled by the CPLD through an enable pin of the
regulator, while the output is monitored through power good signal. If a voltage rail fails, the
CPLD will disable all of the regulators. To restart the system, the chassis power switch must
be power-cycled.
4.15.1

On-board Voltage Supply Requirement

The on-board power supply is considered to be out of regulation if the output voltage level
is below the minimum required power or goes beyond the maximum.
Table 4-6
Voltage Rail
+3.3V
+2.5V
+1.8V
+1.5V
+1.2V
+1.2V_SW
+1.05V
4.15.2

Power Up Sequencing Requirements

The power up sequence describes the voltage rail power up timing, which is designed to
support all the chip supply voltage sequencing requirement.
90
Voltage Supply Requirement
Voltage Rail Requirement
Minimum
3.15V
2.375V
1.7V
1.425V
1.14V
1.14V
1.0V
Maximum
3.45V
2.625V
1.9V
1.575V
1.26V
1.26V
1.1V
MVME2502 Installation and Use (6806800R96L)
Functional Description