Datasheet

ManualsBrandsSilverStone ManualsPower Supply UnitsSST-ST85ZF

Description:

Electrical Specification

SilverStone Technology Co., Ltd.

Subject:

SilverStone Technology

Model: ST85ZF

Switching Power Supply

Document No.:

ES-850-ZEUS-01

File Name: ST85ZF.doc Page : 1

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 200-240Vac 264Vac 6A

Frequency 47 Hz 50 / 60 Hz 63 Hz

Table 1 – AC Input Voltage and Frequency

.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.

Summary of content (13 pages)

PAGE 1
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.
PAGE 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.
PAGE 3
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 Voltage +5V +3.3V +12V1 +12V2 +12V3 Max. Load 30A 24A 18A 18A Min. Load 1.0A 1.5A 0.8A 0.8A +12V4 -12V +5VSB 18A 18A 0.5A 3A 0.5A 0.5A 0A 0.
PAGE 4
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 ≤ 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.
PAGE 5
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 70mS. 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.
PAGE 6
Item Description Tsb_on-delay MIN MAX Units Delay from AC being applied to +5VSB being within regulation. 1500 mS Tac_on-delay Delay from AC being applied to all output voltages being within regulation. 2500 mS 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 limits.
PAGE 7
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.
PAGE 8
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 ≥ 80% with maximum efficiency up to 87%, 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.
PAGE 9
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 0°C ~ 50°C (32°F~ 122°F) Operating Temperature Range: Non-Operating Temperature Range: -40°C ~ 70°C (-40°F~ 158°F) 5.
PAGE 10
6. Agency Requirements 6.1 Safety Certification. Product Safety: UL 60950 2000Edition, IEC60950, 3rd Edition EU Low Voltage Directive(73/23/EEC) (CB) TUV, CCC RFI Emission: FCC Part15 (Radiated & Conducted Emissions) CISPR 22,3rd Edition/ EN55022 Class B) PFC Harmonic: EN 61000-3-2 Flicker: EN 61000-3-3 Immunity against: -Electrostatic discharge: EN55024: 1998 -IEC 61000-4-2 Min. 4kV contact discharge Min. 8kV air discharge -IEC 61000-4-3 Min.
PAGE 11
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.
PAGE 12
9.2 Pin definition M/B 24PIN connector 16AWG wire Orange Orange(22AWG) Blue (18AWG) Black Green(20AWG) Black Black Black N/C Red Red Red Black Signal +3.3V +3.3Vsense -12VDC COM PS-ON COM COM COM N/C +5VDC +5VDC +5VDC COM Pin 13 13 14 15 16 17 18 19 20 21 22 23 24 Pin 1 Signal +3.3V 16AWG wire Orange 2 3 4 5 6 7 8 9 10 11 12 +3.3V COM +5VDC COM +5VDC COM PWRGOOD +5Vsb +12V3 +12V3 +3.
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EPS 12V 18AWG wire Yellow Yellow Yellow Yellow Signal +12V1 +12V1 +12V2 +12V2 Pin 5 6 7 8 EPS 12V 18AWG wire Orange Orange Yellow 8PIN Connector Signal +3.3V +3.