Intel SR1640TH SR1640THNA ユーザーズマニュアル
製品コード
SR1640THNA
Intel® Server System SR1640TH TPS
Power Sub-System
Revision 1.0
67
Intel order number: E94847-001
Table 63. Capacitive load
Output
Min
Max
+12V 10uF
11,000uF
+5VSB 1uF 350uF
3.5.8
Maximum load change
The power supply shall continue to operate normally when there is a step change
1 A/uS
between minimum load and maximum load.
3.5.9
Output voltage rise time
The turn on waveform for the +12V output shall be monotonic with less then 5% of
overshoot. The rise time from 10% (1.2V) to 90% (10.8V) shall be less then 50msec for a
single power supply.
overshoot. The rise time from 10% (1.2V) to 90% (10.8V) shall be less then 50msec for a
single power supply.
3.5.10
Output voltage hold-up time
Upon loss of input voltage (at nominal), the output voltages shall remain in regulation for at
least 16msec.
least 16msec.
3.5.11
Overshoot
Any output overshoot at turn on shall be less than 10% of the nominal output value. Any
overshoot shall recover to within the specified regulation in less than 0.5mS.
overshoot shall recover to within the specified regulation in less than 0.5mS.
3.5.12
Temperature coefficient
After operating for 30 minutes or longer at 25° C ambient, the output voltages shall not
change by more than
change by more than
0.05 % per degree C for any given line and load conditions.
3.6 Protection Circuits
The 5VSB output shall remain on if the failure does not involve this output. When a
protection circuit shuts down a power supply all the LED show a failed status and shall be
active, if the power supply latches off due to a protection circuit tripping. An AC cycle off for
15 sec and PSON cycle high for 1 sec shall reset the power supply. Else the Power should
auto-recover, when the fail had been cleared or the power supply is within specifications
again.
protection circuit shuts down a power supply all the LED show a failed status and shall be
active, if the power supply latches off due to a protection circuit tripping. An AC cycle off for
15 sec and PSON cycle high for 1 sec shall reset the power supply. Else the Power should
auto-recover, when the fail had been cleared or the power supply is within specifications
again.
3.6.1
Over-Current/short circuit Protection (OCP)
The power supply shall have current limit to prevent the+12Voutput from exceeding the
value shown in Table 10. The current limiting shall be of the constant current type for the
+12V.
The power supply shall latch off. The latch will be cleared by togging the PSON# signal or by
an AC power interruption. The power supply shall not be damaged power cycling in this
condition.
value shown in Table 10. The current limiting shall be of the constant current type for the
+12V.
The power supply shall latch off. The latch will be cleared by togging the PSON# signal or by
an AC power interruption. The power supply shall not be damaged power cycling in this
condition.
Table 64. Over-current Protection (OCP)
Voltage
Over current limit
+12 V
110% min; 150% max
3.6.2
Over-voltage Protection (OVP)
An over voltage condition shall be measured on the +12V output of the power supply DC
connector. The power supply must shutdown and latch off when the +12V reaches the
voltage
connector. The power supply must shutdown and latch off when the +12V reaches the
voltage
shown in below table. The latch can be cleared by togging the PSON# signal or by
an AC cycle off.