Silverstone SST-ST45NF-V1.0 power supply unit
Contents
1. SILVERSTONE Designing Inspiration NIGHTJAR SERIES SST ST49NF Optimum fan less power supply with stability and silence SPECIFICATION SilverStone Nightjar ST45NF ATX12V 2 3 Switching Power Supply With Active PFC PS 2 450W 1 General This specification describes the electrical characteristics functional and physical of a PS 2 Fanless Switching power supply the maximum output shall be 450W when Input Voltage is from 100V to 240V This power supply is also design with Active PFC Power Factor Correction capabilities 2 AC Input Characteristics 2 1 AC Input Voltage Frequency and Current Rating 100V 240Vac 47 63Hz 6 3A The power supply must operate within all specified limits over the input voltage range in Table 1 Harmonics distortion of up to 10 THD must not cause the power supply to go out of specified limits EE E Viaximum Parameter Minimum Rated Maximum Input Current Voltage 115V 99 Vac 100 127Vac 132 Vac 6A Voltage 230V 180 Vac 200 240Vac 264Vac Table 1 AC Input Voltage and Frequency 2 2 AC Input Current and Inrush Current AC input current of the system shall meet the limits shown in Table 1 No damage shall occur or overstress input fuse shall blow as a result of inrush Under conditions 132 264VAC full load turn off 1sec turn on at peak of input voltage cycle 25 C air ambient cold start 2 3 Input Power Factor Correction Active PFC The power factor at full load2. 5V 12V 12V 5VSB 5 5 5 5 5 5 10 10 5 5 Table 7 Regulation ripple and noise Ripple and noise shall be measured using the following methods a Measurements made differentially to eliminate common mode noise b Ground lead length of oscilloscope probe shall be lt 0 25 inch c Measurements made where the cable connectors attach to the load d Outputs bypassed at the point of measurement with a parallel combination of 10uF tantalum capacitor in parallel with a 0 1uF ceramic capacitors e Oscilloscope bandwidth of 0 Hz to 20MHz f Measurements measured at locations where remote sense wires are connected g Regulation tolerance shall include temperature change warm up drift and dynamic load 3 3 Dynamic Loading The output voltages shall remain within the limits specified in Table 7 for the step loading and within the limits specified in Table 8 for the capacitive loading The load transient repetition rate shall be tested between 50Hz and 5kHz at duty cycle ranging from 10 90 The load transient repetition rate is only a test specification The Astep load may occur anywhere within the MIN load to the MAX load shown in Table 5 and Table 6 Output A Step Load Size Load Slew Rate Capacitive Load 30 of Max Load 0 5 AluS 1000 uF 3 3V 30 of Max Load 0 5 AluS 1000 uF 50 of Max Load 0 5 AluS 2200 uF 5VSB 50 of Max Load 0 5 AluS Table 8 Transient Load requirements 3 4 Capacitive Loa
3. Latch Off 110 150 Latch Off 110 150 Latch Off Table 14 Over Current protection 4 2 Over Voltage Protection The power supply shall shut down in a latch off mode when the output voltage exceeds the over voltage limit shown in Table 4 Voltage Shutdown Mode 5V Latch Off Latch Off 13 2V 14 5V Latch Off Table 15 Over Voltage protection 4 3 Short Circuit Protection The power supply shall shut down in a latch off mode when the output voltage is short circuit except 5Vsb 4 4 No Load Operation When the primary power is applied with no load on any output voltage no damage or hazardous conditions shall occur 5 Environmental Requirements 5 1 Temperature Operating Temperature Range 0 C 25 C 32 F 75 F Non Operating Temperature Range 40 C 70 C 40 F 158 F 5 2 Humidity Operating Humidity Range 20 90 RH non condensing Non Operating Humidity Range 5 95 RH non condensing 5 3 Altitude Operating Altitude Range Sea level to 10 000 ft Non Operating Altitude Range Sea level to 40 000 ft 5 4 Mechanical Shock The power supply shall not be damaged during a shock of 50G with an 11 mS half sin wave non operating The shock test shall be applied in each of the orthogonal axes 5 5 Vibration The power supply shall be subjected to a vibration test consisting of a 10 to 300 Hz sweep at a constant acceleration of 2 0g for duration of one 1 hour for each of the
4. Tpson_pwok Tpwok_on Delay from PWOK deserted to output voltages Tpwok_off 5V 3 3V 12V 12V dropping out of regulation limits Tpwok_low Delay from 5VSB being in regulation to O Ps being in Tsb_vout regulation at AC turn on Table 11 Turn On Off Timing AC Input AC off AC on lt gt Tsb_holdup l Tpwok_low 1 I 1 1 1 1 N 1 i 1 Le Tpwok_off E e Tsb_on delay i lt 1 i U Tsb_on delay lt ta Tpwok_off PWOK Tpwok on l Tpwok_holdup Tpson_pwok 1 I l 1 i i i 1 I 1 1 I 1 t LI j p lt Tsb_vout Tvout_hold 5VSB Min Toms aS 1 1 S i 1 l 1 l 1 1 l gt 1 l 1 I l 1 1 1 l i Tpson_on_delay le AC tum on off cycle PSON tum on off cycle Figure 2 Turn On Off Timing 3 6 Power Good Signal PWOK PWOK is a power OK signal and will be pulled HIGH by the power supply to indicate that all the outputs are within the regulation limits of the power supply When any output voltage falls below regulation limits or when AC power has been removed for a time sufficiently long so that power supply operation is no longer guaranteed PWOK will be deserted to a LOW state See for a representation of the timing characteristics of PWOK The start of PWOK delay time shall inhibited as long as any power supply output is in current limit Open collector drain output from power Signal Type
5. not produce damage to the power supply gt The power supply must meet surge withstand test condition under maximum and minimum DC output load conditions 2 7 Surge Immunity IEC61000 4 5 The peak value of the unidirectional surge waveform shall be 2KV for common mode and 1KV for differential mode of transient surge injection No unsafe operation or no user noticeable degradation is allowed under any condition Automatic or manual recovery is allowed for other conditions 2 8 Electrical Fast Transient Burst IEC61000 4 4 No unsafe operation allowed under any condition No user noticeable performance degradation up to 1KV is allowed Automatic or manual recovery is allowed for other conditions 2 9 Electro Static Discharge IEC61000 4 2 In addition to IEC61000 4 2 the following ESD tests should be conducted Each surface area of the unit under test should be subjected to twenty 20 successive static discharges at each of the follow voltages 2KV 3KV 4KV 5KV 6KVand 8KV All power supply outputs shall continue to operate within the parameters of this specification without glitches or interruption while the power is operating as defined and subjected to 2kV through 10kV ESD pulses The direct ESD event shall not cause any out of regulation conditions such as overshoot or undershoot The power supply shall withstand these shocks without nuisance trips of the Over Voltage Protection Over Current Protection or the remote 5VDC 12V
6. shall be gt 0 95 at nominal input voltage 2 4 Input Current Harmonics When the power supply is operated in 99 264Vac of Sec 2 1 the input harmonic current drawn on the power line shall not exceed the limits set by EN61000 3 2 class D standards The power supply shall incorporate universal power input with active power factor correction 2 5 AC Line Dropout An AC line dropout of 20mS or less shall not cause any tripping of control signals or protection circuits If the AC dropout lasts longer than 20mS the power supply should recover and meet all turn on requirements The power supply shall meet the regulation requirement over all rated AC voltages frequencies and output loading conditions Any dropout of the AC line shall not cause damage to the power supply An AC line dropout is defined as a drop in AC line to OVAC at any phase of the AC line for any length of time 2 6 AC Surge Voltages The power supply shall be tested and be compliant with the requirements of IEC61000 4 5 Level 3 criteria for surge withstand capability with the following conditions and exceptions The test equipment and calibrated waveforms shall comply with the requirements of IEC61000 4 5 for open circuit voltage and short circuit current gt These input transients must not cause any out of regulation conditions such as overshoot and undershoot nor must it cause any nuisance trips of the power supply protection circuits gt The surge withstand test must
7. DC shutdown circuitry 2 10 Radiated Immunity IEC61000 4 3 3 DC Output Specification 3 1 Output Current Loading The following tables define two power and current rating The power supply shall meet both static and dynamic voltage regulation requirements for minimum load condition 400W 25 C at 99Vac 264Vac 36A Table 5 High Load Range 1 Note 1 The 5 amp 3 3 Volt total output shall not exceed 130 W Note 2 The 5 3 3 amp 12Volt total output shall not exceed 394W Note 3 Maximum continues total DC output power should not exceed 400W Note 4 Peak Power should not exceed 450W 450W 25 C at 180Vac 264Vac 40A Table 5 High Load Range 1 Note 1 The 5 amp 3 3 Volt total output shall not exceed 130 W Note 2 The 5 3 3 amp 12Volt total output shall not exceed 430W Note 3 Maximum continues total DC output power should not exceed 450W Note 4 Peak Power should not exceed 500W 3 2 DC Voltage Regulations Ripple and Noise The power supply output voltages must stay within the following voltage limits when operating at steady state and dynamic loading conditions All outputs are measured with reference to the return remote sense ReturnS signal The 5V 12V 5V 12V and 5VSB outputs are measure at the power supply connectors references to ReturnS The 5V and 3 3V is measured at its remote sense signal 5VS 3 3VS located at the signal connector Output Voltage 3 3V
8. TION DO NOT TOUCH THE SURFACE OF POWER SUPPLY WHEN THE TEMP LED INDICATES YELLOW IT MIGHT BE DANGEROUS Temp Status LED Color High 55 C Yellow Low lt 55 C Configure 8 1 1 The Status LED indicates power supply working Power Status LED Color Standby Power Fault Configure 8 1 2 8 2 AC Input Connector The AC input receptacle shall be an IEC 320 type or equivalent The IEC 320 C receptacle will be considered the mains disconnect 8 3 DC Wire Harness and Connector Requirements ATX Motherboard Power Connector Physical Characteristics Size 9 Physical Characteristics Size 9 1 Weight 2 8Kg TBD 9 2 Power Supply Dimension 150mm W x 86mm H x 160mm D 9 3 Connectors Pin definition M B 24PIN connector 3 3V Orange Orange 22AWG Blue 18AWG 12VDC pr Orange E E Black ie f ne 20 n ra Red BDG 12VDC Yellow Red 22AWG E a 5VDC ahs 12VDC_ _ Yellow Black COM 12 3 3V Orange M B 20PIN connector M B 20 4PIN in split mode 18AWG wire Signal Signal 18AWG wire owe sev 3 3V Orange Orange 22AWG 3 3Vsense Blue 18AWG a BE E a 3V Orange Black 3 Black J oe Red 22AWG 5Vsense 22 13 SilverStone Technology Co Ltd www silverstonetek com support silverstonetek com Issue date February 2008 NO G11205490
9. ding The power supply shall be stable and meet all requirements except dynamic loading requirements with the following capacitive loading ranges 5VSB Table 9 Capacitive Loading Conditions 3 5 Timing Requirements These are the timing requirements for the power assembly operation The output voltages must rise from 10 to within regulation limits Tvout_rise within 5 to 200mS The 5V 3 3V and 12V output voltages should start to rise at about the same time All outputs must rise monotonically The 5V output needs to be greater than the 3 3V output during any point of the voltage rise The 5V output must never be greater than the 3 3V output by more than 2 25V Each output voltage shall reach regulation within 50 mS Tvout_on of each other during turn on of the power supply Each output voltage shall fall out of regulation within 400 mS Tvout_off of each other during turn off Figure 1 and figure 2 show the turn On and turn Off timing requirement In Figure 2 the timing is shown with both AC and PSON controlling the On Off of the power supply Item Tvout_rise Tvout_rise Table 10 Output Voltage Timing 05 Vout V1_10 Vout v2 a lt lt Tvout_on a Tvout_off Tvout_rise Figure 1 Output Voltage Timing Item Description MIN MAX Units Tsb_on delay Delay from AC being applied to 5VSB being within regulation 1500 mS Tac_on delay Tvout_holdup Tpwok_holdup Tpson_on_delay
10. e by stamping or labeling the power supply with Hi pot test OK 6 4 Hi Pot Testing Each power supply must be Hi pot tested according UL and TUV requirements Minimum typical testing voltage for Hi pot testing are 1500Vac or 2121Vdc However depending on the power supply design the testing voltage May be higher If higher the power supplies shell be at the higher value 6 5 Ground Continuity Testing UL and TUV require that each power supply ground is tested to ensure there is continuity between the ground inlet of the power supply and the power supply chassis This can be performed with an ohm meter or an electronic circuit that lights up and illustrates the ground has continuity Based on EN50116 ERG or TUV require that each power supply ground id tested with a 25Amp ground test 7 Reliability 7 1 Mean Time Between failures MTBF The MTBF of the power supply shall be calculated utilizing the Part Stress Analysis method of Bellcore MIL217F The calculated MTBF of the power supply shall be greater than 100 000 hours under the following conditions a Full rated load b 120V AC input c Ground Benign d 25 C 8 LED Indicators s amp Connections 8 1 LED Indicators There are two LEDs for the monitoring the status of the power supply which allows users to perceive a full awareness of the working condition of the power supply The temperature LED indicates surface temperature of the power supply s housing cage CAU
11. perpendicular axes X Y and Z 0 1 octave minute The output voltages shall remain within specification 6 Agency Requirements 6 1 Safety Certification Product Safety TA a RFI Emission FCC Part15 Radiated amp Conducted Emissions CISPR 22 3rd Edition EN55022 Class B PFC Harmonic EN 61000 3 2 Immunity against EN55024 1998 Electrostatic discharge IEC 61000 4 2 Min 4kV contact discharge Min 8kV air discharge Radiated field strength IEC 61000 4 3 Min 10V m Fast transients IEC 61000 4 4 Min 2kV AC input lines Min 1kV on data lines Surge voltage IEC 61000 4 5 Min 2kV common mode Min 1kV differential mode RF Conducted IEC 61000 4 6 Voltage Dips and Interruptions IEC 61000 4 11 However the unit is allowed to exceed the limits for conducted emissions of the above specification in the frequency range 150KHz to 1Mhz A Golden Unit will be provided by Stratus as areference This Gold Unit is a unit which has been modified and tested by Stratus Production units shall not exceed the limits of the Gold Unit by more than 5dB in the frequency range 150Khz to 1Mhz 6 2 AC Input Leakage Current Input leakage current from line to ground will be less than 3 5mA rms Measurement will be made at 240 VAC and 60Hz 6 3 Production Line Testing 100 of the power supply production must have the following test performed Each power shall be marked indicating the testing was done and passed Typically this is don
12. supply Pull up to VSB located in power supply PWOK High Power OK PWOK Low Power is Not OK S MIN MAX Logic level low voltage Isink 4mA OV 0 4V Logic level high voltage Isource 200A 2 4V 5 25V Sink current PWOK Low 4mA Source current PWOK High S 2mA PWOK delay Tpwok_on 100mSec 500mSec PWOK rise and fall time S 100uUSec PWOK down delay Tpwok_off 2mSec 200mSec Table 12 PWOK Signal Characteristics 3 7 Remote On Off Control PSON The PWON signal is required to remotely turn on off the power supply PSON is an active low signal that turns on the 5V 3 3V 12V and 12V power rails When this signal is not pulled low by the system or left open the outputs except the 5VSB and Vbias turn off This signal is pulled to a standby voltage by a pull up resistor internal to the power supply Accepts an open collector drain input from Signal Type the system Pull up to VSB locted in power supply PSON Low Power ON PSON Open Power OFF MAX Logic level low Power supply ON OV 0 8V Logic level low Power supply OFF 2 0V 5 25V Source current Vpson Low E 4mA Power up delay Tpson_on_delay 5mSec 400mSec PWOK delay Tpson_pwok 50mSec Table 13 PWOK Signal Characteristics 3 8 Overshoot at Turn on Turn off Any output overshoot at turn on shall be less than 10 of the nominal output value Any overshoot shall recover
13. to within regulation in less than 10ms 3 9 Efficiency The minimum power supply system efficiency shall be gt 80 measured at nominal input voltage 115 V or 230 V and full loading 3 10 5VSB Standby The 5VSB output is always on 5V Standby when AC power is applied and power switch is turned on and the 5VSB line is capable of delivering at a maximum of 1 5A for PC board circuit that power supply is in standby mode The maximum output current of 5Vsb shall be 2 5A that power supply is in powered on mode 4 Protection Protection circuits inside the power supply shall cause only the power supply s main outputs to shutdown If the power supply latches off due to a protection circuit tripping either a AC cycle OFF for 15 sec or PSON cycle HIGH for 1 sec must be able to restart the power supply 4 1 Over Current Protection This power supply shall have current limit to prevent the 5V 3 3V and 12V outputs from exceeding the values shown in table 14 The current limit shall not trip under maximum continuous load or peak loading as described in Table 5 The power supply shall latch off if the current exceeds the limit The latch shall be cleared by toggling the PSON signal or by cycling the AC power The power supply shall not be damaged from repeated power cycling in this condition The 12V and 5VSB outputs shall be shorted circuit protected so that no damage can occur to the power supply Voltage Shutdown Mode 5V 110 150
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