never trip any lower than the minimum level when measured at the power pins
of the power supply connector.
interruption. The below enclosed table contains over voltage limits. The values
are measured at the output of the connector for power supply. The voltage shall
Output Voltage
MIN(V)
MAX(V)
+3.3V
+5V
+12V1,2,3,4
3.76
5.5
13.4
4.3
7.0
15.6
3.4.3 Over Current Protection
The power supply shall have current limit to prevent the +3.3V,+5V,and +12V
outputs from exceeding the values shown in below enclosed table. If the current
limits are exceed the power supply shall shutdown and latch off. The latch will
be cleared by toggling the PSON# signal or by an AC power interruption. The
power supply shall not be damaged from repeated power cycling in this
condition.-12Vand 5V
SB
shall be protected under over current or shorted
conditions so that no damage can occur to the power supply. All outputs shall be
protected so that on damage occurs to the power supply under shorted output
condition.
Voltage
Over Current Limit
+3.3V
+5V
+12V
110% minimum, 150% maximum
110% minimum, 150% maximum
110% minimum, 150% maximum
3.4.4
240VA Protection
System designs may require user access to energized areas of the system. In
these cases the power supply may be required to meet regulatory 240VA energy
limits for any power rail. Since the +12V rail combined power exceeds 240VA it
must be divided into separate ch12V rails do not necessarily need to be
independently regulated outputs. They can share a common power conversion
stage. The +12V rail is split into four rails. Refer to section 6.4 for how the 12V
rail is split between different output connectors.
Voltage
Over Current Limit
+3.3V
+5V
+12V1
+12V2
+12V3
+12V4
110% minimum, 150% maximum
110% minimum, 150% maximum
Peak current minimum, 20A maximum
Peak current minimum, 20A maximum
Peak current minimum, 20A maximum
Peak current minimum, 20A maximum
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