Manufacturers
SEASONIC SS-250U1
Description
Seasonic SS-250U1 Power Supply - ATX12V v1.1 1U Active PFC
Part Number
SS-250U1
Price
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Manufacturer
SEASONIC
Lead Time
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Category
POWER SUPPLY
Specifications
Active PFC, full load
0.99 typical
Cross regulation
+/- 5% typical
Dielectric withstand, input to frame/ground
1800VAC, 1sec.
Dielectric withstand, input to output
1800VAC, 1sec.
Efficiency; 100-120VAC and full range
72% typical
Efficiency; 220-240VAC, full load
76% typical
Hold up time, full load
16ms. typical
In-rush current, cold start
80A max.
Input frequency
50/60Hz
Line regulation
+/- 1% typical
Load regulation
+/- 5% typical
MTBF, full load @ 25°C amb.
>100k hrs, will vary w/fan type
Ripple/noise
1%
Datasheet
Extracted Text
PRODUCT SPECIFICATION File: EA-250U1C-10 Date: May, 25, 2005 Model: SS-250U1C Active PFC Page: 1 of 5 SWITCHING POWER SUPPLY Full Range Revision: 1.0 1. SCOPE 2 2. AC INPUT and AC OUTPUT 2 3. DC OUTPUT CURRENT LOAD RANGES 2 3.1 DYNAMIC DC OUTPUT CHARACTERISTICS 2 3.2 DC OUTPUT ON/OFF CONTROL 2 3.3 OUTPUT RIPPLE and NOISE 3 4. OUTPUT PROTECTION 3 4.1 TOTAL POWER PROTECTION 3 4.2 OVER VOLTAGE PROTECTION 3 4.3 SHORT CIRCUIT PROTECTION 4 4.4 RESET AFTER SHUTDOWN 4 5. POWER GOOD SIGNAL 4 6. EFFICIENCY 4 6.1 AT FULL LOAD 4 6.2 ENERGY STAR MODE 4 6.3 STANDBY MODE 4 7. COOLING OF PSU 4 8. ACTIVE POWER FACTOR CORRECTION (PFC) 4 9. ENVIRONMENT 5 9.1 OPERATING 5 9.2 SHIPPING / STORAGE 5 10. MTBF 5 11. EMC 5 12. SAFETY 5 13. MECHANICAL DRAWING 5 SEA SONIC ELECTRONICS CO., Ltd. Tel:+886-2-26590338 Fax:+886-2-26590530 PRODUCT SPECIFICATION File: EA-250U1C-10 Date: May, 25, 2005 Model: SS-250U1C Active PFC Page: 2 of 5 SWITCHING POWER SUPPLY Full Range Revision: 1.0 1. SCOPE This specification defines electrical performance and characteristic of “SS-250U1C Active PFC” Full Range series Power supplies which comply with Intel ATX12V v1.1, ATX2.03 & AMD Athlon requirements. 2. AC INPUT and AC OUTPUT: 1. RANGE Limits Minimum Maximum Unit AC Input voltage 90 264 Vac AC Input frequency 47 63 Hz 2. AC Input Current 4.5 Amp(rms) 3. Inrush current (cold start) 100 Amp(peak) Inrush current (warm start) NO COMPONENT OVER STRESSED. NO FUSE BLOW. NO DAMAGE TO THE POWER SUPPLY. NOTE: 1. The AC input is 90~264 Vac full range. No selectable hard switch is provided. 2. The value of the current is for the model with AC input. 3. Measured at 25 Deg C Ambient. 3. DC OUTPUT REQUIREMENTS: 3.1 DC OUTPUT CURRENT RATINGS DC OUPTUT Min. Nom. Max. Peak Tolerance +3.3VDC 0.3A 20A +5%/-5% +5VDC 0.1A 21A +5%/-5% Group1 +12VDC 1.0A 13A 16A +5%/-5% -12VDC 0.0A 0.8A +10%/-10% +5Vsb 0.0A 2A +5%/-5% Group2 Note: 1. Maximum continuous DC output power shall not exceed 250 Watts. 2. Combined load on +5VDC and +3.3VDC output shall not exceed 110 Watts or 30A. 3.2 CROSS REGULATION The +5V & +3.3V combined load and +12VDC load shall remain within the regulation limits Defined in section 3.1 over cross load combinations shown Figure 1 152 110 +12V load(W) 15 0 5 110 20 90 3.3V,+5V Combined load(W) Figure 1 +5V & +3.3V combined,+12V Cross Load Combinations SEA SONIC ELECTRONICS CO., Ltd. Tel:+886-2-26590338 Fax:+886-2-26590530 PRODUCT SPECIFICATION File: EA-250U1C-10 Date: May, 25, 2005 Model: SS-250U1C Active PFC Page: 3 of 5 SWITCHING POWER SUPPLY Full Range Revision: 1.0 3.3 OUTPUT RIPPLE and NOISE Measurement is made with an oscilloscope with 20 MHz bandwidth. Output should be bypassed at the connector with a 0.1uF ceramic disk capacitor and a 10uF electrolytic capacitor to simulate System load. The length of ground wire on probe should not longer than 40mm, if a Non - differential type of scope was used. +3.3V +5V +12V -5V -12V +5Vsb 50mV 50mV 120mV 50mV 150mV 50mV 3.4 DYNAMIC DC OUTPUT CHARACTERISTICS +/-10% Max. Excursion for 50% to 100%, or 100% to 50% load change with return to Regulation in 0.5 mS. 3.5 DC OUTPUT ON/OFF CONTROL A low active PS-ON (DC ON/OFF) input signal is equipped, which provide the interface to ENABLE or to DISABLE the GROUP1 of DC output. This signal is electrically compatible to interface with TTL,OPEN COLLECTOR and the HARD SWITCH. T6 Vin(AC) +5Vsb T2 T4 DC ON/OFF T2 +5V 4.75V Vpg Vpg 4.75V T5 T3 T3 POK(PG) SIGNAL NAME MAXIMUM MINIMUM T2 +5V TURN-ON DELAY 20 mS T3 RESET TIME 500 mS 100 mS T4 DC SAVE TIME 1 mS T5 SAVE TIME Vpg= 4.75V 1 mS 16 mS T6 HOLD-ON TIME (AT NOMINAL AC INPUT) 4. OUTPUT PROTECTION 4.1 TOTAL POWER PROTECTION: ( OPP ) Total power 135% max with shut-down and latch off protection. 4.2 OVER VOLTAGE PROTECTION: ( OVP ) OVER ACTIVE RANGE RESULT VOLTAGEAT Min. Max. +3.3V 3.76V 4.8V Shut down & Latch OFF The Group 1 DC Output +5V 5.7V 7.0V +12V 15.6V SEA SONIC ELECTRONICS CO., Ltd. Tel:+886-2-26590338 Fax:+886-2-26590530 PRODUCT SPECIFICATION File: EA-250U1C-10 Date: May, 25, 2005 Model: SS-250U1C Active PFC Page: 4 of 5 SWITCHING POWER SUPPLY Full Range Revision: 1.0 4.3 SHORT CIRCUIT PROTECTION: ( OCP ) The short between any output of group 1 will shut down all group1. The short at group 2 will Shut down both group 1 and group 2. 4.4 RESET AFTER SHUTDOWN Whenever the power supply latches into shutdown state due to fault condition on its output, The power supply will return to normal operation only after the fault has been removed and the power switch has been cycled off/on with A MINIMUM OFF TIME OF 20mS. (PS-ON) 5. POWER GOOD SIGNAL: Signal Type: open collector +5DC, TTL compatible. Logic Level: <0.4V while sinking 4 mA. Logic Level High: between 2.4VDC and +5V output while souring 200 uA. 6. EFFICIENCY: 6.1 AT FULL LOAD: Over 65% at normal input voltage. 6.2 ENERGY STAR MODE Over 50% at 30W max power consumption with 15W or more delivered to DC power output 6.3 STANDBY MODE Over 50% (PS-ON inactive)5W max power consumption with at least 500mA output on +5Vsb 7. COOLING OF PSU A DC FAN was equipped to Cooling The Power Supply and system Load , The FAN will draw in AIR Through The vent Holes in DC Output Cable Side , and Exhaust it in The AC Receptacle Side. Fan parameters Rated voltage 12VDC Dimensions 40*40*20 (mm) Air flow 9.5 CFM min. Noise <45.5 dBA 8. ACTIVE POWER FACTOR CORRECTION (PFC): 8.1 Harmonic current meets IEC1000-3-2 / EN61000-3-2 standards. 8.2 PFC >0.95 at full load. SEA SONIC ELECTRONICS CO., Ltd. Tel:+886-2-26590338 Fax:+886-2-26590530 PRODUCT SPECIFICATION File: EA-250U1C-10 Date: May, 25, 2005 Model: SS-250U1C Active PFC Page: 5 of 5 SWITCHING POWER SUPPLY Full Range Revision: 1.0 9. ENVIRONMENT 9.1 OPERATING o o o Temperature: 0 to 50 C. (The rated power will derate from 100% to 80% from 40 C to 50 C Linearly) Relative Humidity: 20% to 80% 9.2 SHIPPING / STORAGE Temperature: -40 to 85 Deg C Relative Humidity: 10% to 95% 10. MTBF Over 100,000 hours at 25 Deg C. excluding the DC Fan. 11. EMC Comply to CE EN50081-1(1992) , EN55024(1998), EN61000-3-2, EN61000-3-3 & FCC (B) regulation. 12. SAFETY: Conform to IEC950 (EN60950) standards: CB, C-UL, TUV 13. MECHANICAL DRAWING: Dimension: L190*W100*H40.5 mm SEA SONIC ELECTRONICS CO., Ltd. Tel:+886-2-26590338 Fax:+886-2-26590530
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