ENHANCE SWITCHING POWER SUPPLY SPECIFICATION 250 WATT MODEL NO:V525 1.0 SCOPE 2.0 INPUT REQUIREMENTS 2.1 VOLTAGE 2.2 FREQUENCY 2.3 STEAD-STATE CURRENT 2.4 INRUSH CURRENT 3.0 OUTPUT REQUIREMENTS 3.1 AC OUTPUT 3.2 DC LOAD REQUIREMENTS 3.3 +12V POWER ON REQUIREMENTS 3.3.1 +12V SURGE CURRENT 3.4 WARM-UP DRIFT 3.5 RIPPLE AND NOISE 3.5.1 DEFINITION 3.5.2 SPECIFICATION 3.5.3 RIPPLE VOLTAGE TEST CIRCUIT 3.6 OVERSHOOT 3.7 EFFICIENCY 4.0 PROTECTION 4.1 INPUT 4.2 OUTPUT 4.2.1 OCP OPP 4.2.2 OVP 4.2.3 SHORT 5.0 POWER SUPPLY SEQUENCING 5.1 TURN ON 5.2 HOLD UP TIME 5.3 ON/OFF CYCLE 5.4 POWER OFF SEQUENCE 5.4.1 OUTPUT VOLTAGE SEQUENCE V525SPEC REV: 1 OF 9 2000/08/05
6.0 SIGNAL REQUIREMENTS 6.1 POWER GOOD (POR) 6.2 UNDER VOLTAGE SENSE LEVEL 6.3 SINK/SOURCE COMPATIBILITY 7.0 STABILITY 8.0 ENVIRONMENT 8.1 OPERATION 8.2 SHIPPING AND STORAGE 8.3 ALTITUDE 8.4 COOLING 9.0 FRAGILITY AND VIBRATION 9.1 SHOCK-NON-OPERATION 9.2 VIBRATION NON-OPERATION 9.3 VIBRATION OPERATION 10.0 SAFETY 10.1 CB TEST REPORT 10.2 UL 10.3 CSA 10.4 TUV 10.5 SEMKO DEMKO NEMKO SETI 10.6 CE MARK 11.0 RELIABILITY 11.1 MTBF 11.2 METHOD OF CACULATION 11.3 ENVIRONMENT 11.4 POWER ON HOURS 11.5 ON/OFF CYCLE 11.6 BURN IN 12.0 MECHANICAL REQUIREMENTS 12.1 PHYSICAL DIMENSION 12.2 CONNECTION 12.2.1 P10,P11 12.2.2 P12 12.2.3 P8,P9 12.3 AC INLET 12.4 AC OUTLET V525SPEC REV: 2 OF 9 2000/08/05
1.0 SCOPE THIS SPECIFICATION DEFINES THE PERFORMANCE. CHARACTERISTICS OF A GROUNDED, SINGLE-PHASE, 250WATTS, 4 OUTPUT LEVEL POWER SUPPLY. THIS SPECIFICATION ALSO DEFINES WORLD WIDE SAFETY REQUIREMENTS AND MANUFACTURES PROCESS TEST REQUIREMENTS. 2.0 INPUT REQUIREMENTS 2.1 VOLTAGE (SINUSOIDAL) LOW RANGE 95-132 Vac NOMINAL 100-125 Vac HIGH RANGE 180-264 Vac NOMINAL 200-240 Vac A MANUAL SWITCH SHALL BE PROVIDED TO SELECT THE APPROPRIATE RANGE. 2.2 FREQUENCY THE INPUT FREQUENCY RANGE WILL BE 47Hz - 63Hz 2.3 STEADY- STATE CURRENT 6.3 AMPS MAXIMUM (EXCLUDING AC OUTPUT CURRENT) AT ANY LOW RANGE INPUT VOLTAGE. 3.5 AMPS MAXIMUM (EXCLUDING AC OUTPUT CURRENT) AT ANY HIGH RANGE INPUT VOLTAGE. 2.4 INRUSH CURRENT 50 AMPS @ 110Vac. 100 AMPS @ 220Vac. ( AT 25 DEGREES AMBIENT WARM AND COLD START). 3.0 OUTPUT REQUIREMENTS 3.1 AC OUTPUT REQUIREMENTS ONE AC OUTPUT SHALL BE PROVIDED WHICH MUST MEET THE FOLLOWING REQUIREMENTS: LOW RANGE 90-132 Vac MAX OUTPUT CURRENT 2.0 AMP HIGH RANGE 180-264 Vac MAX OUTPUT CURRENT 1.0 AMP 3.2 DC LOAD REQUIREMENTS CONDITION 1. : NOMINAL LOAD CURRENT REGULATION TOLERANCE OUTPUT VOLTAG MAX MIN MAX MIN + 5V 26 5 5% -5% + 12V 9 3 6% -5% - 5V 0.3 0 10% -10% - 12V 0.3 0 10% -10% CONDITION 2. : NOMINAL LOAD CURRENT REGULATION TOLERANCE OUTPUT VOLTAGE MAX MIN MAX MIN + 5V 13 3 5% -5% + 12V 4.5 1 5% -5% - 5V 0.2 0 10% -10% - 12V 0.2 0 10% -10% * ALL LOADS ARE ASSUMED TO BE RESISTIVE. * PERCENT OF ABSOLUTE VALUE OF OUTPUT VOLTAGE. * BOTH OF TWO LOAD CURRENT CONDITION SHALL BE MEET ALL REGULATION TOLERANCE. V525SPEC REV: 3 OF 9 2000/08/05
3.3 +12V POWER-ON REQUIREMENTS +12V SURGE CURRENT THE +12V OUTPUT SHALL WITHSTAND A TOTAL SURGE CURRENT OF 11.0A AT TURN-ON WITH THE CURRENT RAMPING DOWN TO NORMAL LOADING WITHIN 10 SECONDS, DURING THIS TIME PERIOD THE +12V REGULATION TOLERANCE SHALL BE + / - 5%. 3.4 WARM-UP DRIFT ANY CHANGE IN OUTPUT VOLTAGE DUE TO WARM-UP DRIFT, DOES NOT EXCEED REGULATION LIMIT. 3.5 RIPPLE AND NOISE 3.5.1 DEFINITION THE RIPPLE VOLTAGE OF THE OUTPUT SHALL BE MEASURED AT THE PINS OF THE OUTPUT RATING CONNECTOR WHEN TERMINATED IN THE LOAD IMPEDANCE SPECIFIED IN SECTION 3.5.3. THIS MEASUREMENT SHALL BE MADE USING A DIFFERENTIAL TECHNIQUE HAVING A COMMON MODE REJECTION RATIO (CMRR) 10,000 TO 1 FROM 10HZ TO 500KHZ. WHEN MEASURED RIPPLE USED 100K LOW PASS FILTER. RIPPLE SHALL BE MEASURED UNDER ANY CONDITION OF LINE VOLTAGE, OUTPUT LOAD, LINE FREQUENCY, OPERATION TEMPERATURE. 3.5.2 SPECIFICATION + 5V 100mV (P-P) + 12V 120mV (P-P) - 12V 150mV (P-P) - 5V 150mV (P-P) 3.5.3 RIPPLE VOLTAGE TEST CIRCUIT ( SEE FIG.1 ) Power Supply AC Hot AC Neutral V out V return 10uF 22uf 0.1uF Load AC Ground Scope 3.6 OVERSHOOT Figure 1. Ripple voltage test circuit ANY OVERSHOOT AT TURN ON OR TURN OFF SHALL BE LESS 10% OF THE NOMINAL VOLTAGE VALUE, ALL OUTPUT SHALL BE WITHIN THE REGULATION LIMIT OF SECTION 3.2 BEFORE ISSUING THE POWER GOOD SIGNAL OF SECTION 6.0. 3.7 EFFICENCY POWER SUPPLY EFFICIENCY TYPEICAL 70% AT 115V, FULL LOAD. POWER FACTOR CANN'T BELOW 0.7. V525SPEC REV: 4 OF 9 2000/08/05
4.0 PROTECTION 4.1 INPUT (PRIMARY) THE INPUT POWER LINE MUST HAVE AN OVERCURRENT PROTECTION DEVICE IN ACCORDANCE WITH SAFETY REQUIREMENT OF SECTION 12.0. 4.2 OUTPUT (SECONDARY) 4.2.1 OVER CURRENT PROTECTION THE POWER SUPPLY SHALL PROVIDE OVERCURRENT PROTECTION ON EACH DC OUTPUT SUCH THAT WHEN A 10 AMPS / SECOND FAULT CURRENT RAMP IS APPLIED TO AN OUTPUT, THE OUTPUT VOLTAGE SHALL NOT DROP BELOW 2.5V (ABSOLUTE) BEFORE THE POWER SUPPLY LATCHES ALL DC OUTPUT INTO A SHUTDOWN STATE. OVERCURRENT OF THIS TYPE SHALL CAUSE NO DAMAGE TO POWER SUPPLY, AFTER OVER LOAD IS REMOVED AND A POWER ON / OFF CYCLE IS INITIATED, THE POWER SUPPLY WILL RESTART. TRIP POINT TOTAL POWER Min 110%, Max 130%. 4.2.2 OVER VOLTAGE PROTECTION IF AN OVERVOLTAGE FAULT OCCURS (INTERNAL TO THE POWER SUPPLY), THE SUPPLY WILL LATCH ALL DC OUTPUT INTO A SHUTDOWN STATE BEFORE WHEN + 5V OUTPUT EXCEEDS 140% OF ITS NOMINAL VALUE. 4.2.3 SHORT CIRCUIT A SHORT CIRCUIT PLACED ON ANY DC OUTPUT TO DC RETURN SHALL CAUSE NO DAMAGE AND POWER SUPPLY LATCH. 5.0 POWER SUPPLY SEQUENCING 5.1 POWER ON (SEE FIG.2) 5.2 HOLD UP TIME (SEE FIG.2) WHEN POWER SHUTDOWN DC OUTPUT 5V MUST BE MAINTAIN 16m Sec IN REGULATION LIMIT AT NOMINAL INPUT VOLTAGE. 5.3 ON / OFF CYCLE WHEN THE POWER SUPPLY IS TURNED OFF FOR A MINIMUM OF ONE SECOND AND THEN TURNED ON, THE POWER GOOD SIGNAL SHALL BE REGENERATED AS DESCRIBED IN PARAGRAPH 6.0. 5.4 POWER OFF SEQUENCE (SEE FIG.2) 5.4.1 OUTPUT VOLTAGE SEQUENCE WITH AT LEAST THE MINIMUM LOAD APPLIED TO ALL VOLTAGES, THE OUTPUT VOLTAGE TRACK WITHIN 300 MILLISECONDS OF EACH OTHER WHENEVER THE POWER SUPPLY IS SWITHED ON OR OFF. V525SPEC REV: 5 OF 9 2000/08/05
6.0 SIGNAL REQUIREMENTS 6.1 POWER GOOD SIGNAL (SEE FIG.2) Figure 2. Timing Sequence THE POWER SUPPLY SHALL PROVIDE A "POWER GOOD" SIGNAL TO RESET SYSTEM LOGIN, INDICATE PROPER OPERATION OF THE POWER SUPPLY, AND GIVE ADVANCE WARNING OF IMPENDING LOSS OF REGULATION AT TURN OFF. THIS SIGNAL SHALL BE A TTL COMPATIBLE UP LEVEL (2.4V TO 5.25V) WHEN + 5V OUTPUT VOLTAGE ARE PRESENT AND ABOVE THE MINIMUM UV SENSE LEVELS SPECIFIED IN PARAGRAPH 6.2, OR A DOWN LEVEL (0.0V TO 0.8V) WHEN ANY OUTPUT IS BELOW ITS MINIMUM UV SENSE LEVEL. AT POWER ON THE POWER GOOD SIGNAL SHALL HAVE A TURN ON DELAY OF AT LEAST 100ms BUT NOT GREATER THAN 500mS AFTER THE OUTPUT VOLTAGES HAVE REACHED THEIR RESPECTIVE MINIMUM SENSE LEVELS. THE POWER GOOD SIGNAL SHALL HAVE A RISE TIME (MEASRUED FROM THE 10% POINT TO THE 90% POINT) OF LESS THAT 200 MICROSECONDS. AT TURN OFF, POWER GOOD SHALL GO TO A DOWN LEVEL AT LEAST 1mSec BEFORE ANY VOLTAGE FALLS BELOW THE REGULATION LIMITS DESCRIBED IN SECTION 3.2. IF POWER IS ON AND ANY OUTPUT GOES BELOW ITS MINIMUM UV SENSE LEVEL, POWER GOOD SHALL GO TO DOWN LEVEL WITHIN 500 MILLISECONDS. 6.2 UNDERVOLTAGE (UV) SENSE LEVELS OUTPUT MINIMUM SENSE VOLTAGE + 5V +4.50V 6.3 SINK / SOURCE COMPATIBILITY THE POWER GOOD SIGNAL OUTPUT SHALL BE CAPABLE OF SOURCING 500 MICRO- AMPS AND SINKING 5 MILLI-AMPS. V525SPEC REV: 6 OF 9 2000/08/05
7.0 STABILITY THE POWER SUPPLY SHALL BE UNCONDITIONALLY STABLE FOR ANY SPECIFIED OPERATION INPUT AND OUTPUT CONDITION. 8.0 ENVIRONMENT 8.1 OPERATION TEMPERATURE 0 TO 50 DEGREES CENTIGRADE RELATIVE HUMIDITY 8 TO 80 PERCENT, NON-CONDENSING 8.2 SHIPPING AND STORAGE TEMPERATURE -40 TO 60 DEGREES CENTIGRADE RELATIVE HUMIDITY 5 TO100 PERCENT, INCLUDING CONDENSATION 8.3 ALTITUDE THE POWER SUPPLY MUST OPERATE TO AN ALTITUDE OF 7000 FEET. 8.4 COOLING THE POWER SUPPLY SHALL PROVIDE FORCED AIR COOLING OF AT LEAST 13 CFM WITH A PRESSURE DROP, AT THE AIR INTAKE EXTERNAL TO THE POWER SUPPLY, OF 0.02 INCHES OF WATER. 9.0 FRAGILITY AND VIBRATION 9.1 SHOCK NON-OPERATING SUPPLY MUST SURVIVE WITHOUT PHYSICAL OR FUNCTIONAL DAMAGE A SERIES OF SIX (6) SHOCKS, ONE ON EACH SIDE, TOP AND BOTTOM. EACH SHOCK SHALL CONSIST OF A 35G SQUAREWAVE PULSE WITH A DURATION OF 15-20 MILLI-SECONDS. 9.2 VIBRATION NON-OPERATING A CONSTANT 0.5G INPUT SHALL BE APPLIED WITH FREQUENCY SWEPT FROM 2 TO 200GZ AT.3 DECADES / MINUTE, STOPPING AT RESONANT FREQUENCIES FOR 15 MINUTES. RESONANT FREQUENCIES ARE DEFINED AS FREQUENCIES WHERE 1.0G OR HIGHER IN/OUT RESPONSE IS CREATED. ACCEPTANCE SHALL BE DEFINED AS THE POWER SUPPLY BEING FUNCTIONAL AFTER DWELLING AT EACH RESONANT FREQUENCY. 9.3 VIBRATION OPERATIONAL CONTINUOUS VIBRATION LEVELS: 5 TO 17HZ 0.036 INCH DOUBLE AMPLITUDE DISPLACEMENT 17 TO 199HZ 0.55GS ACCELERATION 200 TO 500HZ 0.25GS ACCELERATION TRANSIENT VIBRATION LEVELS: 5 TO 17HZ 0.048 INCH DOUBLE AMPLITUDE DISPLACEMENT 17 TO 199HZ 0.73GS ACCELERATION 200 TO 500HZ 0.33GS ACCELERATION FREQUENCY TO BE SWEPT AT A RATE OF.067 DECADES / MINUTE (4 DECADES /HOUR). DWELL AT RESONANT FREQUENIES FOR 30 MINUTES. ACCEPTANCE SHALL BE DEFINED AS THE POWER SUPPLY CONTINUING TO FUNCTION PROPERLY THROUGHOUT THE TEST. V525SPEC REV: 7 OF 9 2000/08/05
10.0 SAFETY 10.1 CB TEST REPORT TO MEET IEC 950, 2nd EDITION, 1991 + Amd.1,1992. 10.2 UNDERWRITERS LABORATORY (UL) (CUL) RECOGNITION. THE POWER SUPPLY DESIGNED TO MEET UL 1950. 10.3 CANADIAN STANDARDS ACCOCIATION (CSA) APPROVAL. THE POWER SUPPLY DESIGNED TO MEET CSA C22.2 NO.950 10.4 TUV THE POWER SUPPLY SHALL BE DESIGNED TO MEET TUV-EN60950/08.92 + A1/01.93 10.5 THE POWER SUPPLY DESIGNED TO MEET: SEMKO SS-EN 60950 DEMDO SECTION 137 (EN60950, IEC 950 MODIFIED) NEMKO NEK-EN60950 (1992) A1. SETI SFS-EN60950. 10.6 THE CE APPROVAL THE PRODUCTS MUST AGREE WITH FOLLWOING EMI RULES. EN 55022B RADIO INTERFERENCE. IEC 801-2 ESD (IES 1004-4-2) IEC 801-3 RADIATED ELECTRICAL FIELD REQUIREMENT (IEC 1004-4-3) IEC 801-4 BURST (IEC (1004-4-4) EN60555-2 HARMONIC CURRENT EMISSIONS. 11.0 RELIABILITY 11.1 MTBF MTBF (AS DESCRIBED IN 11.2 AND 11.3 BELOW) SHALL BE 25,000 POWER ON HOURS (POH) OR GREATER. THIS RELATIVES TO AN INTRINSIC FAILURE RATE OF 1.25% PER 1000 HOURS OF OPERATION. 11.2 METHOD OF CALCULATION MEAN TIME BETWEEN FAILURES (MTBF) SHALL BE CALCULATED ACCORDING TO MIL-HDBK-217E. 11.3 ENVIRONMENT MTBF SHALL BE CALCULATED ON A POWER SUPPLY OPERATION AT 25 DEGREES CENTIGRADE AMBIENT TEMPERATURE, SEA LEVEL, BOTH LINE VOLTAGE RANGES SPECIFIED IN PARAGRAPH 2.0 AND 75% OF MAXIMUM LOAD AS SPECIFIED IN PARAGRAPH 3.2. V525SPEC REV: 8 OF 9 2000/08/05
11.4 POWER ON HOURS (POH) THE POWER SUPPLY SHALL BE DESIGNED FOR A MINIMUM OF 10,000 POH. 11.5 ON / OFF CYCLES THE POWER SUPPLY SHALL BE DESIGNED TO WITHSTAND A MINIMUM OF 10.000 ON / OFF CYCLES WITHOUT FAILURE RATE DEGRADATION. 11.6 BURN IN ALL PRODUCTS SHIPPED TO CUSTOMER MUST BE BURN IN. THE BURN IN SHALL BE PERFORMED AT LOW LINE VOLTAGE. 12.0 MECHANICAL REQUIREMENTS 12.1 PHYSICAL DIMENSION 150mm*140mm*86mm. PS/2 TYPE 12.2 CONNECTION 12.2.1 HARNESS P10. P11 & P12 CONSISTING OF : 4 STRANDED WIRES AWG 18 INSULATED LENGHT 300mm +/- 10mm WITH TERMINAL WIRE ( AMP:61314T-4 ) AND CONNECTOR HOUSING ( AMP:1-480424-4 ) OR EQUIVALENT. 12.2.2 HARNESS P13 & P14 CONSISTING OF : 4 STRANDED WIRES AWG 22 INSULATED LENGHT 300mm +/- 10mm WITH TERMINAL WIRE ( AMP:2411 ) AND CONNECTOR HOUSING ( AMP:2510-04 ) OR EQUIVALENT. 12.2.3 HARNESS P8 AND P9 CONSISTING OF : 6 STRANDED WIRES AWG 18 INSULATED LENGHT 400mm +/- 10mm WITH TERMINAL WIRE ( AMP:2422 BS ) AND CONNECTOR HOUSING ( AMP:4200-6) OR EQUIVALENT. 12.3 CONNECTOR POWER INPUT ( SWITCHCRAFT EAC-303 ) OR EQUIVALENT. 12.4 CONNECTOR AC OUTPUT ( SWITCHCRAFT EAC-305 ) OR EQUIVALENT. V525SPEC REV: 9 OF 9 2000/08/05