ST46GF 460W + 460W PS/2 redundant power supply Hot swappable Industry-leading reliability Durable zinc-plated surface Convenient pull-out handle bars
SPECIFICATION SilverStone GEMINI ST46GF Mini Redundant Power Supply With Active PFC 460W + 460W 1. General This is the specification of Model SST-ST46GF; it is intended to describe the functions and performance of the subject power supply. This 460 watts Redundant Power Supply with Active PFC (Power Factor Correction) capability, meets EN61000-3-2 and equips Full Range Input features. 2. AC Input Characteristics 2.
ST46GF 2.3 Input Power Factor Correction ( Active PFC) The power factor at full load shall be _> 0.98 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.
3. DC Output Specification 3.1 Output Current / Loading The following table defines 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 +12V -5V -12V +5VSB Max. Load 35A 22A 30A 0.5A 1A 2A Min. Load 1A 1A 2A 0A 0A 0.1A 2.5W 12W 10W 220W Max. Combined Total Output 436W Table 2– Output Loads Range 1: Note 1: Maximum continuous total DC output power should not exceed 460 W.
ST46GF 3.3 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.
3. DC Output Specification 3.1 Output Current / Loading The following table defines power and current rating. The power supply shall meet both static and dynamic voltage regulation requirements for minimum load condition. Item Description MAX Units Tsb_on-delay 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.
ST46GF 3.4 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,-5V and -12V power rails. When this signal is not pulled low by the system, or left open, the outputs (except the +5VSB and V bias) 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.
Voltage Minimum Maximum Shutdown Mode +5V +5.7V +6.5V Latch Off +3.3V +3.9V +4.5V Latch Off +12V +13.3V +14.5V Latch Off 5VSB +5.7V +6.5V Auto recovery Table 7 –Over Voltage protection 4.3 Over Current Protection The power supply should contain the OCP function on each hot swap module. The power supply should be shut down in a latch off mode while the respective output current exceeds the limit as shown in Table 8.
ST46GF 5.2 Humidity Operating Humidity Range: 20% ~ 90%RH non-condensing Non-Operating Humidity Range: 5% ~ 95%RH non-condensing 6. Agency Requirements 6.1 Safety Certification.
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. During this process the output voltage shall remain within the limits specified in Table 7 with the capacitive load specified Table 9. The Sub-system shall not exceed the maximum inrush current as specified in section 2.2.
ST46GF 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 MIL217F or Bell core 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 9. Physical Characteristics Size 9.
April, 2012
