Silverstone ST85ZF
Contents
1. Designing Inspiration SilverStone Technology Co Ltd SilverStone Technology Model ST85ZF Switching Power Supply Yellow Black stripe 12V3 1 1 5VDC Red Black COM 2 2 COM Black Black COM 3 3 COM Black Red 5VDC 4 4 12V3 Yellow SATA connector Orange 3 3V 5 Black GND 4 Red 5V 3 Black GND 2 Yellow 12V2 1 Subject Description Electrical Specification Document No ES 850 ZEUS 01 File Name ST85ZF doc Page 12 EPS 12V 8PIN Connector Yellow 12V1 5 1 COM Black Yellow 12V1 6 2 COM Black Yellow 12V2 7 3 COM Black Yellow 12V2 8 4 COM Black EPS 12V 6PIN Connector Orange 3 3V 1 4 GND Black Orange 3 3V 2 3 GND Black Yellow 12V3 3 6 Yellow 12V3 6PIN PCI Express Connector 1 amp 2 Yellow 12V4 1 4 GND Black Yellow 12V4 2 5 GND sense Black Yellow 12V4 3 6 GND Black 6PIN PCI Express Connector 3 Yellow 12V2 1 4 GND Black Yellow 12V2 2 5 GND sense Black Yellow 12V2 3 6 GND Black 6PIN PCI Express Connector 4 Yellow 12V3 1 4 GND Black Yellow 12V3 2 5 GND sense Black Yellow 12V3 3 6 GND Black With dual NVIDIA GeForce 7950GTX cards please use the following combination of PCI E connectors only PCI E 1 amp PCI E 2 PCI E 1 amp PCI E 3 PCI E 2 amp PCI E 3 SILVERSTONE2. File Name ST85ZF doc Page 5 Item Description MIN MAX Units Tsb_on delay Delay from AC being applied to 5 VSB being within regulation 1500 mS Tac_on delay Delay from AC being applied to all output voltages being 2500 mS within regulation Tvout_holdup Time all output voltage stay within regulation after loss of AC 18 mS Tpwok_holdup Delay from loss of AC deassertion of PWOK 17 ms Tpson_on_delay Delay from PSON active to output voltage within regulation 5 400 mS limits Tpson_pwok Delay from PSON deactive to PWOK being deasserted 50 mS Tpwok_on Delay from output voltage within regulation limits to PWOK 100 500 mS asserted at turn on Tpwok_off Delay from PWOK deasserted to output voltages 5V 3 3V 1 mS 12V 12V dropping out of regulation limits Tpwok_low Duration of PWOK being in the deasserted state during an off on 100 mS cycle using AC or the PSON signal Tsb_vout Delay from 5VSB being in regulation to O Ps being in regulation at 50 1000 mS AC turn on Table 11 Turn On Off Timing AC Input Tac_on delay i f T wok_low p I i 1 I Tsb_on delay i T pwok_off i Tpwok_off PWOK i i Tpwok_holdup Tsb_on delay Tpson_pwok a T sb_holdup I Min gt 70mS i Tpson_on_delay PSON l I Tsb_vout i 1 L 1 PSON turn on off cycle Ta i AC turn On off cycle Figure 2 Turn On Off Timing Subject SilverStone Technolo
3. Designing Inspiration SilverStone Technology Co Ltd Subject SilverStone Technology Model ST85ZF Description Electrical Specification Switching Power Supply Document No ES 850 ZEUS 01 File Name ST85ZF doc Page 13
4. VDC 12VDC shutdown circuitry Subject Description SilverStone Technology Electrical Specification SILVERSTONE KoA Designing Inspiration Model ST85ZF Switching Power Supply SilverStone Technology Co Ltd Document No ES 850 ZEUS 01 File Name ST85ZF doc Page 2 2 10 Radiated Immunity IEC61000 4 3 Frequency Electric Field Strength 27 MHz to 500 MHz un modulated 3 V m 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 Output 5V 3 3V 12V1 12V2 4 12V3 12V4 12V 5VSB Voltage Max Load 30A 24A 18A 18A 18A 18A 0 5A 3A Min Load 1 0A 1 5A 0 8A 0 8A 0 5A 0 5A OA 0 1A Table 5 Output Loads Range 1 Note 1 The 5 amp 3 3 Volt total output shall not exceed 180 W Note 2 Maximum continuous total DC output power should not exceed 850 W Note 3 Maximum continuous load on the combined 12 V output shall not exceed 70 A 3 2 DC Voltage Regulation 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 3 3V 12V 12V and 5VSB outputs are meas
5. 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 S VSB and Vbias turn off This signal is pulled to a standby voltage by a pull up resistor internal to the power supply Signal Type Accepts an open collector drain input from the system Pull up to VSB locted in power supply PSON Low Power ON PSON Open Power OFF MIN MAX Logic level low Power supply ON OV 1 0V Logic level low Power supply OFF 2 0V 5 25V Source current Vpson Low 4mA Power up delay Tpson_on_delay SmSec 400mSec PWOK delay Tpson_pwok 50mSec Table 13 PWOK Signal Characteristics Subject Description 8 SilverStone Technology Electrical Specification SILVERSTONE KoA Designing Inspiration Model ST85ZF Switching Power Supply SilverStone Technology Co Ltd Document No ES 850 ZEUS 01 File Name ST85ZF doc Page 7 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 to within regulation in less than 10ms 3 9 Efficiency The minimum power supply system efficiency shall be gt 80 with maximum efficiency up to 87 measured at nominal input voltage 115 V or 230 V and full loading 3 10 5 VSB Standby The 5VSB output is always on 5V Standby when AC power is applied an
6. or Bellcore RPP The calculated MTBF of the power supply shall be greater than 100 000 hours under the following conditions Full rated load 120V AC input Ground Benign 25 C Technical information in this specification is subject to change without notice The revision of specification will be marked on the cover 8 Connections 8 1 AC Input Connector and DC Wire Harness and Connector Requirements Please refer to the attachment 9 Physical Characteristics Size 9 1 Power Supply Dimension 150 0mm W x 86 0mm H x 180 0mm D Subject Description 8 SilverStone Technology Electrical Specification SILVERSTONE KoA Designing Inspiration Model ST85ZF Switching Power Supply SilverStone Technology Co Ltd Document No ES 850 ZEUS 01 File Name ST85ZF doc Page 11 9 2 Pin definition M B 24PIN connector a U HE T Orange 3 3V 13 1 3 3V Orange Orange 22AWG 3 3Vsense 13 Blue 18AWG 12VDC 14 2 3 3V Orange Black COM 15 3 COM Black Green 20AWG PS ON 16 4 5VDC Red Black COM 17 5 COM Black Black COM 18 6 5VDC Red Black COM 19 7 COM Black N C N C 20 8 PWRGOOD Grey 20AWG Red 5VDC 21 9 5Vsb Purple i8AWG Red 5VDC 22 10 12V3 Yellow Red 5VDC 23 11 12V3 Yellow Black COM 24 12 3 3V Orange 4PIN Molex connector HDD 4PIN floppy connector FDD ee SILVERSTONE
7. 4 5V Latch Off 12V1 2 3 4 5 13 3V 14 5V Latch Off 12V 13 3 14 5 Latch Off 5VSB 5 7 6 5 Latch Off Table 15 Over Voltage protection Subject Description SilverStone Technology Model ST85ZF Switching Power Supply Electrical Specification KoA SILVERSTONE Designing Inspiration Document No ES 850 ZEUS 01 SilverStone Technology Co Ltd File Name ST85ZF doc Page 8 4 3 Short Circuit Protection The power supply shall shut down in a latch off mode when the output voltage is short circuit 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 50 C 32 F 122 F Non Operating Temperature Range 40 C 70 C 40 F 158 F 5 2 Humidity 5 3 Altitude Operating Humidity Range 20 90 RH non condensing Non Operating Humidity Range 5 95 RH non condensing 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 non operating shall not be damaged during a shock of 50G with an 11 mS half sin wave non operating The shock to be applied in each of the orthogonal axes 5 5 Vibration Operating and Non operating The power supply shall be subject
8. ES 850 ZEUS 01 File Name ST85ZF doc Page 1 2 4 Input Current Harmonics When the power supply is operated in 90 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 17mS or less shall not cause any tripping of control signals or protection circuits If the AC dropout lasts longer than 17mS 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 W 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 W The surge wit
9. SPECIFICATION SilverStone Zeus ST85ZF Switching Power Supply With Active PFC PS 2 850W 1 General This specification describes the electrical characteristics functional and physical of a PS 2 850 watts switching power supply with Active PFC Power Factor Correction capabilities 2 AC Input Characteristics 2 1 AC Input Voltage Frequency and Current Rating 100V 240Vac 47 63Hz 12 6A 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 Parameter Minimum Rated Maximum Max Current Voltage 115V 90 Vac 100 120Vac 132 Vac 12A Voltage 230V 180 Vac 200 240V ac 264V ac 6A Frequency 47 Hz 50 60 Hz 63 Hz Table 1 AC Input Voltage and Frequency 2 2 AC Inrush Current AC line inrush current shall not damage any component nor cause the AC line fuse to blow under any DC conditions and with any specified AC line input voltage and frequency Repetitive On Off cycling of the AC input voltage shall not damage the power supply 2 3 Input Power Factor Correction Active PFC The power factor at full load shall be 0 95 at nominal input voltage Subject Description 8 SilverStone Technology Electrical Specification SILVERSTONE Koa Designing Inspiration Model ST85ZF Switching Power Supply SilverStone Technology Co Ltd Document No
10. 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 done 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 2121 Vdc However depending on the power supply design the testing voltage May be higher If higher the power supplies shell be at the higher value KoA SILVERSTONE Designing Inspiration SilverStone Technology Co Ltd Subject SilverStone Technology Model ST85ZF Switching Power Supply Description Electrical Specification Document No ES 850 ZEUS 01 File Name ST85ZF doc Page 10 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 MIL217F
11. ading 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 Output A Step Load Size Load Slew Rate Capacitive Load 5V 30 of Max Load 0 5 A uS 1 000 uF 3 3V 30 of Max Load 0 5 A uS 1 000 uF 12V Combine 65 of Max Load 0 5 A uS 2 200 uF 5VSB 25 of Max Load 0 5 A uS 1 uF Table 8 Transient Load requirements 3 4 Capacitive Loading The power supply shall be stable and meet all requirements except dynamic loading requirements with the following capacitive loading ranges Output MIN MAX Units 5V 10 12 000 uF 3 3V 10 12 000 uF 12V 10 11 000 uF 12V 1 350 uF 5VSB 1 350 uF Table 9 Capacitive Loading Conditions Subject Description KoA S TLVER Ss TONE SilverStone Technology Electrical Specification Designing Inspiration Model ST85ZF Switching Power Supply SilverStone Technology Co Ltd Document No ES 850 ZEUS 01 File Name ST85ZF doc Page 4 3 5 Timing Requirements These are the timing requirements for the power assembly operation The outpu
12. d power switch is turned on The 5VSB line is capable of delivering at a maximum of 3 0A for PC board circuit to operate 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 PSPON 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 Minimum Maximum Shutdown Mode 5V 110 150 Latch Off 3 3V 110 150 Latch Off 12V 110 150 Latch Off 4 2 Over Voltage Protection Power supply shall shut down in latch off mode when the output voltage exceeds the over voltage limit Table 14 Over Current protection Voltage Minimum Maximum Shutdown Mode 5V 5 7V 6 5V Latch Off 3 3V 3 9V
13. ed 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 perpendicular axes X Y and Z 0 1 octave minute The output voltages shall remain within specification Subject Description 8 SilverStone Technology Electrical Specification SILVERSTONE KoA Designing Inspiration Model ST85ZF Switching Power Supply SilverStone Technology Co Ltd Document No ES 850 ZEUS 01 File Name ST85ZF doc Page 9 6 Agency Requirements 6 1 Safety Certification Product Safety UL 60950 2000Edition IEC60950 3 Edition EU Low Voltage Directive 73 23 EEC CB TUV CCC RFI Emission FCC Part15 Radiated amp Conducted Emissions CISPR 22 3 Edition EN55022 Class B PFC Harmonic EN 61000 3 2 Flicker EN 61000 3 3 Immunity against Electrostatic discharge Radiated field strength Fast transients Surge voltage RF Conducted Voltage Dips and Interruptions EN55024 1998 IEC 61000 4 6 IEC 61000 4 11 IEC 61000 4 2 Min 4kV contact discharge Min 8kV air discharge IEC 61000 4 3 Min 10V m IEC 61000 4 4 Min 2kV AC input lines Min 1kV on data lines IEC 61000 4 5 Min 2kV common mode Min 1kV differential mode Table 16 Safety Certification 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
14. gy Model ST85ZF Switching Power Supply Description Electrical Specification KoA SILVERSTONE Designing Inspiration SilverStone Technology Co Ltd Document No ES 850 ZEUS 01 Page 6 File Name ST85ZF doc 3 6 Power Good Signal PWOK PSOK 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 deasserted 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 Signal Type Open collector drain output from power supply Pull up to VSB located in power supply PWOK High Power OK PWOK Low Power is Not OK MIN MAX Logic level low voltage Isink 4mA OV 0 4V Logic level high voltage Isource 200 uA 2 4V 5 25V Sink current PWOK Low 4mA Source current PWOK High 2mA PWOK delay Tpwok_on 100mSec 1000mSec PWOK rise and fall time 100 u Sec PWOK down delay Tpwok_off 2mSec 200mSec Table 12 PWOK Signal Characteristics 3 7 Remote On Off Control PPON The PSON signal is required to remotely turn on off the power supply PSON is an active
15. hstand test must not produce damage to the power supply E 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 2K V 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 EC61000 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 Electrical 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 AKV 5KV 6KV and 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 5
16. t voltages must rise from 10 to within regulation limits Tvout_rise within 5 to 7OmS 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 Description MIN MAX Units Tvout_rise Output voltage rise time from each main output 5Vsb lt 70mS 5 70 mS Tvout_on All main output must be within regulation of each other within 50 mS this time Tvout_off All main output must leave regulation within this time 400 mS Table 10 Output Voltage Timing V3 A S r 1 E E i Tvout_on e Tvout_off Tvout_rise Figure 1 Output Voltage Timing Subject Description x SilverStone Technology Electrical Specification SILVER STONE KoA Designing Inspiration Model ST85ZF Switching Power Supply SilverStone Technology Co Ltd Document No ES 850 ZEUS 01
17. ure 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 a8 SILVERSTONE Designing Inspiration SilverStone Technology Co Ltd SilverStone Technology Model ST85ZF Switching Power Supply Output 5V 3 3V 12V1 12V2 12V3 12V4 12V 5VSB Voltage Load Reg 5 5 5 5 5 5 10 5 Line Reg 1 1 1 41 41 1 41 1 Ripple amp Noise 50mV 50mV 120mV 120mV 120mV 120mV 120mV 50mV Table 7 Regulation ripple and noise Subject Description Electrical Specification Document No ES 850 ZEUS 01 File Name ST85ZF doc Page 3 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 Lo
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