SilverStone ST400 STRIDER User manual

ST400
STRIDER
Effortless power on demand
Dual +12V rails for newest systems
6 pin PCI express connector
Silent running 120mm fan
Four serial ATA connectors
Components designed for reliability
Support ATX 12V 2.2

01
SilverStone STRIDER ST400
ATX12V 2.2 Switching Power Supply
PS/2 400W
SPECIFICATION
1. GENERAL REQUIREMENTS
2. INPUT REQUIREMENTS
This specification describes a 400 watts power supply. With+ 5V stand-by , remote
ON/OFF control for ATX system and passive PFC(Power Factor Correction) (option)
circuit at 230 Vac.
The power supply shall operate in 115Vrms±10% or 230Vrms ±10%. The power
supply shall operate from an AC mains frequency of 47 through 63 Hz. Maximum
inrush current from power-on (with power on at any point on the AC sine) and
including, but not limited to, three line cycles, shall be limited to a level below the
surge rating of the input line cord, AC switch if present, bridge rectifier, fuse, and EMI
filter components. Repetitive ON/OFF cycling of the AC input voltage should not
damage the power supply or cause the input fuse to blow.
The AC mains steady-state RMS input current shall be:
8.5 amps maximum / 115 Vrms, 60 Hz.
5 amps maximum / 230 Vrms, 50 Hz.

02
3.1 OUTPUT VOLTAGE AND CURRENT
3. OUTPUT REQUIREMENTS
+12V1DC
+3.3V
+5V
+12V2DC
-12V
+5Vsb
1.0A
0.5A
0.3A
1.0A
0.0A
0.0A
MINIMUM
LOAD
7.0A
10.0A
7.0A
8.5A
0.4A
1.25A
NORMAL
LOAD
18A
28A
30A
18A
0.5A
2.5A
±5%
±5%
±5%
±5%
±10%
±5%
±1%
±1%
±1%
±1%
±2%
±1%
120mV P-P
50mV P-P
50mV P-P
120mV P-P
120mV P-P
50mV P-P
120mV P-P
50mV P-P
50mV P-P
120mV P-P
120mV P-P
50mV P-P
MAXIMUM
LOAD
LOAD
REG.
LINE
REG.
RIPPLE NOISE
(1) +3.3V &+5V total output not exceed 180W.
When +3.3V is load to 28A,the +5V maximum load is 17.52A.
When +3.3V is load to 9.0A,the +5V maximum load is 30A.
(2) +12V1DC & +12V2DC total output not exceed 348W.
(3) +3.3V &+5V & +12V1DC & +12V2DC total output not exceed 385W.
(4) All outputs shall be safety-isolated from the AC mains and share a common return.
This common return must be connected to supply chassis.
(5) Voltages and ripple are measured at the load side of mating connectors with a 0.1 uF
monolithic ceramic capacitor paralleled by a 10 uF electrolytic capacitor across the
measuring terminals.
STRIDER ST400

03
3.2 REMOTE ON/OFF CONTROL
3.3 OUTPUT VOLTAGE HOLD-UP TIME
3.4 OPERATION AT NO LOAD
The power supply shall accept a logic open collector level which will disable / enable
all the output voltage (exclude + 5V standby ).
As logic level is low, outputs voltage were enable.
As logic level is high, outputs voltage were disable.
Note: 1. Logic high level :3.50-5.25V while sourcing 0.4mA maximum.
2. Logic low level : 0-0.5V while sinking 1.5mA maximum.
3. Rise Time : 2ms maximum (10%-90%).
17.0 mS minimum : at 115V / 60 Hz. (COND.6)
17.0 mS minimum : at 230V / 50 Hz. (COND.6)
The power supply shall be capable of being operated with no load on any or all
outputs without damage. For no load on +3.3V&+5V, the output shall not exceed
+4.5 & +6.5Vdc and the power supply may shutdown and require by remote-control
or remove AC power restart.
3
1
2
4
5
6
7
8
9
COND.1
CONDITION
COND.2
COND.3
COND.4
COND.5
COND.6
COND.7
COND.8
COND.9
LOAD
11A
0.5A
3.0A
20A
28A
10A
12A
0.3A
3.0A
14A
14A
10A
2.0A
1.0A
2.0A
5.0A
8.0A
13.0A
1.5A
1.0A
2.0A
4.0A
6.0A
12.0A
0.15A
0A
0A
0.15A
0.3A
0.3A
+3.3V +5V +12V1DC +12V2DC -12V
7.2A
16A
1.0A
10A
11.2A
2.0A
10.0A
11.2A
5.0A
15.0A
12.0A
4.0A
0.5A
0.3A
0.5A
1.0A
0A
0A
1.5A
2.0A
2.5A
2.5A
1.0A
0A
OUTPUT LOAD
NO.
LOAD REGULATION CHARACTERISTICS
+5Vsb

04
3.5.3 Short-Current Protection
A short circuit at any output shall cause no damage to the power supply nor blow the
primary fuse. The supply may shut down in the event of a short circuit and require
power-on restart. A short circuit consists of application of a test resistance of less
than 0.05 ohms at each output with maximum load on all outputs.
3.6 OUTPUT RISETIME
The cold-start enable output voltage risetime of all outputs shall be measured with
maximum load on all outputs.
risetime : +3.3V 20mS (maximum)
(10-95%) +5V 20mS (maximum)
+12 V1DC 20mS (maximum)
+12 V2DC 20mS (maximum)
-12 V 20mS (maximum)
+5Vsb 20mS (maximum)
3.5 PROTECTION
3.5.1 Over-voltage protection
In the event of an over-voltage condition on +3.3 & +5Vdc &+12V the power supply
shall
shutdown and require remote control or remove the AC mains input to reset the system.
+5V : 6.5V (maximum)
+3.3V : 4.6V (maximum)
+12V1DC : 15.5V (maximum)
+12V2DC : 15.5V (maximum)
3.5.2 Over-LOAD protection
There shall be protection from an output over-current event. The supply may shutdown
form such an event and require power-on restart. Testing consists of application of the
listed over-current value with maximum load on all other outputs.
Over-current test values: (maximum load)
+3.3V : 90A maximum
+5V : 68A maximum
+12V1DC : 32A maximum
+12V2DC : 32A maximum
STRIDER ST400

05
3.10 POWER ON TIME
115/230V (FULL LOAD) : 500mS minimum.
Figure 1
T2 : RISETIME < 20mS
T3 : POWER GOOD DELAY TIME 100mS-500mS
T4 : POWER GOOD RISETIMEɷ10mS
3.7 OUTPUT OVERSHOOT
No output voltage shall overshoot or generate spikes at turn-on or turn-off, during
momentary power loss, output short, or realistic input voltage or output load changes,
Overshoot is defined as any output that exceeds the voltage tolerance plus or minus
an additional 5%.
3.8 EFFICIENCY
Overall efficiency must be 70% minimum measured at normal AC mains voltage and
frequency with maximum loads on all outputs.
3.9 POWER GOOD SIGNAL
115/230V (FULL LOAD) : 100-500mS

06
4.3 SHOCK AND VIBRATION
The power supply will withstand the following imposed conditions without experiencing
non-recoverable failure or deviation form specified output characteristics. Storage -40G,
11mSec. half-sine wave pulse in both directions on three mutually perpendicular axes.
Operating -10G, 11mSec. half-sine wave pulse in both directions on three mutually
perpendicular axes.Vibration Operation-Sine wave excited, 0.25G maximum acceleration.
10-250 Hz, swept at one octave/min. Fifteen minute dwell at all resonant points, where
resonance is defined as those exciting frequencies at which the device under test
experiences excursions two times large than non-resonant excursions.
4. PHYSICAL ENVIRONMENT
4.1 OPERATING CONDITIONS
The power supply shall be capable of continuous operation and meet all electrical
specification without need for adjustment when subjected to the following
environmental conditions:
4.1.1 AMBIENT TEMPERATURE : 0 TO 50ʨ
The maximum continuous power rating of supply is 400W at 25ʨ. De-rate 2W / ʨ
from 25ʨto 50ʨ.
4.1.2 RELATIVE HUMIDITY : 90%
4.2 STORAGE AND SHIPPING CONDITIONS
No degradation of the power supply shall occur during shipping or storage at the
specified conditions.
4.2.1 AMBIENT TEMPERATURE : -20 TO +65ʨ
4.2.2 RELATIVE HUMIDITY : 95%
STRIDER ST400

07
6 OTHER REQUIREMENTS
6.1 COOLING
With the fan voltage set to around 12 volts, the fan will deliver greater than 38.2 CFM
with the power supply in open air.
6.2 INPUT CONNECTIONS
Refer to Mechanical Specifications for placement. The AC mains input are through a
three-circuit IEC type connector mounted on the rear of the power supply chassis.
5. REGULATORY COMPLIANCE
5.1 SAFETY REQUIREMENTS
-TUV EN60950
-UL 60950
5.2 DIELECTRIC STRENGTH
Primary to Frame Ground : 1800 Vac for 1 sec.
Primary to Secondary : 1800 Vac for 1 sec.
5.3 INSULATION RESISTANCE
Primary to Secondary : 20 Meg. ohms Minimum.
Primary to FRAME GROUND : 20 Meg. ohms Minimum.
5.4 GROUND LEAKAGE CURRENT
The power supply ground leakage current shall be less than 3.5mA.
5.5 EMISSION REQUIREMENTS
When testing the power supply must operate within the listed requirements.

08
6.4 PIN DEFINITION
M/B 24PIN connector
ATX 12V 4PIN connector
+3.3V
+3.3V
COM
+5VDC
COM
+5VDC
COM
PWRGOOD
+5Vsb
+12V
+12V
+3.3V
Orange
Orange
Black
Red
Black
Red
Black
Grey (24AWG)
Purple(18AWG)
Yellow
Yellow
Orange
1
2
3
4
5
6
7
8
9
10
11
12
13
13
14
15
16
17
18
19
20
21
22
23
24
+3.3V
+3.3Vsense
-12VDC
COM
PS-ON
COM
COM
COM
N/C
+5VDC
+5VDC
+5VDC
COM
Orange (20AWG)
Brown (24AWG)
Blue (24AWG)
Black (18AWG)
Green (24AWG)
Black
Black
Black
N/C
Red
Red
Red
Black
18AWG wire Signal Pin Pin Signal 18AWG wire
Yellow / Black
Yellow / Black
18AWG wire Signal Pin Pin Signal 18AWG wire
+12V
+12V
Black
Black
3
4
1
2
COM
COM
6.3 RELIABILITY
The power supply reliability, when calculated by MIL-HDBK-217; latest revision, are
exceed 100,000 hours with all output at maximum load and an ambient temperature of 25ʨ.
STRIDER ST400
6PIN PCI Express Connector
Yellow
Yellow
Yellow
18AWG wire Signal Pin Pin Signal 18AWG wire
+12V
+12V
+12V
Black
Black
Black
1
2
3
4
5
6
GND
GND sense
GND

09
Fan voltage varies with the ambient temperature or output power.
7. FAN SPEED CONTROL
SATA connector
+3.3V
GND
+5V
GND
+12V
5
4
3
2
1
Orange
Black
Red
Black
Yellow
18AWG wire Signal Pin
4PIN peripheral connector (HDD) 4PIN floppy connector (FDD)
Yellow
Black
Black
Red
18AWG wire Signal Pin Pin Signal 22AWG wire
+12V
COM
COM
+5VDC
Red
Black
Black
Yellow
1
2
3
4
1
2
3
4
+5VDC
COM
COM
+12V
AIR FLOW
150.0
140.0
86.0
86.0
8. Power Supply Dimension : 150mm(W) ×86mm(H) ×140mm(D)

10
STRIDER ST400
20885 Currier Road
City of Industry , CA 91789
Tel: [phone]
Fax: [phone]
usasales

January, 2007
NO: G11203390