ST55GF 550W + 550W PS/2 redundant power supply Hot swappable Industry-leading reliability Durable zinc-plated surface Convenient pull-out handle bars
SPECIFICATION SilverStone Gemini ST55GF Mini Redundant Power Supply With Active PFC 550W + 550W 1. General This specification describes the electrical characteristics, functional and physical of a 550W+550W=550 watts redundant power supply with Active PFC (Power Factor Correction) and hot-swappable capabilities. 2. AC Input Characteristics 2.
ST55GF 2.3 Input Power Factor Correction (Active PFC) The power factor at full load shall be • 0.98 •0.95 at nominal input voltage. 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.
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, 4KV, 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.
ST55GF 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,+12V, -12V and +5BSB 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.
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 +5V +3.3V +12V +12V MIN 10 10 10 1 +5VSB 1 MAX 12,000 12,000 11,000 350 Units uF uF uF uF 350 uF 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.
ST55GF Vout V1 10%Vout V2 V3 V4 Tvout_on Tvout_off Tvout_rise Figure 1 :Output Voltage Timing Item rin MIN MAX Units Tsb_on-delay Delay from AC being applied to +5VSB being within regulation Tsb_on-delay Delay from AC being applied to all output voltages being within regulation. 1500 mS 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.
AC Input AC off AC on Tsb_holdup Vout Tpwok_low Tac_on-delay Tsb_on-delay Tpwok_off Tpwok_on Tsb_on-delay Tpwok_off Tpwok on Tpwok_holdup PWOK Tsb_vout +SVSB Tpson_pwok Tvout_holdup Min 70mS Tpson_on_delay PSON# PSON turn on/off cycle AC turn on/off cycle Figure 2: Turn On/Off Timing 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.
ST55GF 3.7 Remote On/Off Control: PSON# The PSON# 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. Signal Accepts an open collector/drain input from the system. Pull-up to VSB located in power supply.
4.1 Over Current Protection The power supply should contain the OCP function on each hot swap module. The power supply should beshut down in a latch off mode while the respective output current exceeds the limit as shown in Table 8. When the latch has been cleared by toggling the PSON# single or cycling the AC input power. The powersupply module should not be damaged in this condition. Voltage Minimum Maximum Shutdown Mode +5V +3.
ST55GF 5. Environmental Requirements 5.1 Temperature Operating Temperature Range Non-Operating Temperature Range 0•C ~ 40•C (32•F ~ 104•F) -40•C ~ 70•C (-40•F ~ 158•F) 5.2 Humidity Operating Temperature Range 20%~90%RH non-condensing Non-Operating Temperature Range 5%~95%RH non-condensing 5.3 Altitude Operating Temperature Range Sea level to 10,000 ft Non-Operating Temperature Range Sea level to 40,000 ft 5.
6. Agency Requirements 6.1 Safety Certification.
ST55GF 7. Redundant Power Supply Function: 7.1 Redundancy The redundant power supply is 1+1=1 (550W+550W=550W) (460W+460W=460W) function power , each one module is redundancy when any one module was failed. To be redundant each item must be in the Hot swap power supply module. 7.2 Hot Swap Requirements The redundant power supply modules shall be hot swappable. Hot swapping a power supply is the process of inserting and extracting a power supply from an operating.
8. Reliability 8.1 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: Full rated load, 120V AC input, Ground Benign, 25ᑻC 8.2 Warranty Two (2) years manufacture's warranty. Date code indicating the year (200X, X is the first code) and week (2, 3 Code is the week ) of manufacture.
ST55GF P2: 8-Pin Processor Power Connector Connector housing: 8- Pin Molex : 39-01-2080 or Equivalent Contact: Molex 44476-1111 or Equivalent Pin Signal Color Size Pin Signal Color Size 1 COM Black 18 AWG 5 +12 VDC Yellow 18 AWG 2 COM Black 18 AWG 6 +12 VDC Yellow 18 AWG 3 COM Black 18 AWG 7 +12 VDC Yellow 18 AWG 4 COM Black 18 AWG 8 +12 VDC Yellow 18 AWG 4-Pin HDD / CD ROM Drive Power Connectors Connector housing: 4- Pin AMP: 1-480424-0 or Equivalent Contact: Amp 6
May,2008
