Intel SC5299WS User Manual
Intel
®
Entry Server Chassis SC5299-E TPS
Power Sub-system
Revision 3.1
Intel order number D37594-005
17
2.1.5.3
Remote Sense
The power supply has remote sense return (ReturnS) to regulate out ground drops for all output
voltages; +3.3V, +5V, +12V1, +12V2, -12V, and 5VSB. The power supply uses remote sense
(3.3VS) to regulate out drops in the system for the +3.3V output. The +5V, +12V1, +12V2, –12V
and 5VSB outputs only use remote sense referenced to the ReturnS signal. The remote sense
input impedance to the power supply is greater than 200
voltages; +3.3V, +5V, +12V1, +12V2, -12V, and 5VSB. The power supply uses remote sense
(3.3VS) to regulate out drops in the system for the +3.3V output. The +5V, +12V1, +12V2, –12V
and 5VSB outputs only use remote sense referenced to the ReturnS signal. The remote sense
input impedance to the power supply is greater than 200
on 3.3VS, 5VS. This is the value of
the resistor connecting the remote sense to the output voltage internal to the power supply.
Remote sense is able to regulate out a minimum of 200mV drop on the +3.3V output. The
remote sense return (ReturnS) is able to regulate out a minimum of 200mV drop in the power
ground return. The current in any remote sense line is less than 5mA to prevent voltage sensing
errors. The power supply operates within specification over the full range of voltage drops from
the power supply’s output connector to the remote sense points.
Remote sense is able to regulate out a minimum of 200mV drop on the +3.3V output. The
remote sense return (ReturnS) is able to regulate out a minimum of 200mV drop in the power
ground return. The current in any remote sense line is less than 5mA to prevent voltage sensing
errors. The power supply operates within specification over the full range of voltage drops from
the power supply’s output connector to the remote sense points.
2.1.5.4
Power Module Output Power/Currents
The following table defines power and current ratings for the 420-W power supply. The
combined output power of all outputs does not exceed the rated output power. The power
supply meets both static and dynamic voltage regulation requirements for the minimum loading
conditions.
combined output power of all outputs does not exceed the rated output power. The power
supply meets both static and dynamic voltage regulation requirements for the minimum loading
conditions.
Table 11. Load Ratings
Load Range
Output
Voltage
Min.
Max.
Regulation
Ripple and Noise
Max. mV P-P
+5V
2A
20A
4.80 - 5.25V
50mV
+3V3
0.5A
17A
3.135 - 3.47V
50mV
–12V
0A
0.5A
-11.52 - -12.6V
120mV
+5VSB
0A
2A
4.80 – 5.25V
70mV
+12V1
0.5A
24A
11.40 - 12.6V
120mV
+12V2
0.5A
17A
11.40 - 12.6V
120mV
Notes:
1.
Noise test: noise bandwidth is from 10 Hz to 20 MHz.
2.
Add 0.1 uF and 10uF low ESR capacitors at output connector terminals for ripple and noise
measurements.
measurements.
3.
Main O/P shall be enabled by pulled “remote” pin to TTL low level, and disabled by pulled “remote”
pin to TTL high level.
pin to TTL high level.
4.
Max combined power on +5V and +3.3V outputs does not exceed 150 W.
5.
12V1 and 12V2 combined current does not exceed 30A.
6.
12V1 and 12V2 combined peak current does not exceed 34 A for over 12 seconds.
7.
All outputs remain within regulation limits.
8.
Maximum power does not exceed 450 W at 25 degrees C ambient and 420 W at 50 degrees C
ambient.
ambient.