What’s New 250W DUAL OUTPUT SWITCHING POWER SUPPLY ✔ Low-Profile Rack Mount (1U High) ✔ 85-270 VAC Universal Input ✔ 0.99 Minimum Power Factor at Full Load ✔ 2 Outputs: +5 and +12 VDC ✔ Load Sharing on Both Outputs ✔ Hot-Swap Capable ✔ International Safety Standards ✔ EN55022/FCC Class B Input Filter ✔ EN61000-4 EMC/ESD Immunity ✔ IEC68 Shock and Vibe Immunity ✔ Over-Voltage, Short-Circuit/Overload Protection ✔ Fan Fault Sensors ✔ Power Fault Warning and Power-Good LED ✔ IEC320 Input Connector ✔ 96-Pin DIN 41612 Output Connector ✔ 2-Year Warranty ✔ 250,000-Hour Minimum MTBF Output Current Output CHARACTERISTICS Output Voltage Min. Nom. Max. Voltage Line Load Cross- Model Output (V) (A) (A) (A) Tol. Reg. Reg. Reg. Input Voltage.............................85-270 VAC single phase (120/240 VAC nominal). AC-DC Dual 85-265 VAC Input CPA2-250 V1 +5 5.0 40 40 2.0% 0.2% 1.0% — Input Line Frequency ................47-440 Hz (50/60 Hz, nominal). V2 +12 0.1 1.0 4.0 4.0% 0.2% 1.0% 0.5% Input Current.............................4.6A, maximum. In-Rush Current ........................80A, peak (cold start at TA = +25°C). Input Line Protection.................MOV transient protection; input line CHARACTERISTICS fuse provided on-board. (See Notes 1 and 2.) Transient Response..................200 µs, maximum, recovery time to Turn-On Delay...........................5 seconds, maximum, both outputs. within 1% of the regulation window Power Factor.............................0.99, minimum, at full load. (±3% peak deviation) after a load EMI Filter...................................Standard, performance better than change from 25% to 75% of full load the conducted EMI requirements of at a slew rate of 10A/µs. EN55022/FCC Class B. Design Topology .......................PFC boost with half-bridge converter Continuous Output Power.........250W, maximum. running under voltage-mode control. Output Voltage Adjust ...............Output V1 is adjustable ±5%. Output Frequency of Operation ............100 kHz, fixed. V2 is fixed. Electrical Strength/Isolation......5300 VDC, input-to-output for one minute. (See Note 3.) Output Rise Time ......................50 ms, maximum, both outputs. Noise and Ripple ......................1% peak-to-peak, maximum. (See Efficiency...................................65%, minimum (nominal input line Note 4.) voltage and full load conditions). Temperature Range ..................-20°C to +70°C with forced air cool- Load-Share Method ..................Droop with OR-ing diode, each out- ing of 100 LFM, minimum, through put. the power supply. Overload Protection ..................Power-limit circuit. Cooling Fan Fault Signal ..........TTL-compatible active LOW at fan Short-Circuit Protection.............Continuous, cycle-by-cycle current tachometer signal indicating a fan limiting, both outputs; automatic speed below 1800 rpm. recovery. Output Power De-Rating...........De-rate output power and current Over-Voltage Protection............Both outputs protected; automatic 2.5W/°C from +50°C to +70°C. recovery at end of over-voltage con- Temperature Coefficient............±0.02%/°C over the entire operating dition. Typical over-voltage ranges: temperature range. Output V1, 5.9V - 6.9V. Relative Humidity......................0 to 95%, non-condensing. Output V2, 14V - 15V. Altitude ......................................0 to 10,000 feet. Power-Fault Signal....................TTL-compatible; an active HIGH sig- Storage Temperature ................-20°C to +85°C. nal at an out-of-tolerance condition for either output. Storage Humidity ......................0 to 95%, non-condensing. Ride-Through Time ...................16 ms, minimum (low line, full load). Mean Time Between Failures ...>250,000 hours (Note 9). POWER 152 Will Drive · Canton, MA 02021 USA · Phone 781-828-6216 · Fax 781-830-1155 · Email power@nidecpg.com · http://www.nidec.com GENERAL 9 What’s New 250W DUAL OUTPUT SWITCHING POWER SUPPLY CPA2-250 A. Dimensions shown are in inches. B. Tolerances = 0.00 ±0.01 inch. 0.000 ±0.005 inch. C. Input connector P1 is IEC320-C14. D. Output connector P2 is a 96-pin DIN-style 41612 assembly (AMP 650473-5 or equivalent). POWER 152 Will Drive · Canton, MA 02021 USA · Phone 781-828-6216 · Fax 781-830-1155 · Email power@nidecpg.com · http://www.nidec.com GENERAL 10 What’s New 250W DUAL OUTPUT SWITCHING POWER SUPPLY P2 Pin-Out Notes 1. Replace the input line fuse with the same types and rating. capacitor. The probe ground band must make contact with the output Recommended: 6.0A/250V slow-blow fuse. return or common terminal to prevent erroneous noise measurements. 5. Line regulation is measured under full load conditions as the input 2. This power supply meets the following EMC/ESDrequirements: voltage is varied from 85 to 270 VAC. Electrostatic Discharge Immunity - EN61000-4-2 at Level 4; 6. Load regulation is measured at 120 VAC. The output under test is Radiated Fields Immunity - EN61000-4-3 at Level 3; brought to 60%of full load; load current is then varied ±40% of full load Fast Transient Protection - EN61000-4-4 at Level 4; while other output is held at full load condition. Lightning Surge Protection - EN61000-4-5 at Level 4. 7. Cross-regulation is tested by changing the load on the V1 output from 3. Electrical strength/isolation is 2200 VDC from the input of the power sup- 10% to 100% of full load while measuring the voltage change on the aux- ply to ground for 60 seconds. iliary output under test. 4. Peak-to-peak and RMS metering equipment must have a 20 MHz fre- 8. This power supply meets mechanical requirements of IEC68 Part 2-27 (shock), IEC68 Part 2-6 (vibration) and IEC68 Part 2-29 (bump). quency response with probes and cables that maintain a frequency response of 20 Hz to 20 MHz. Output ripple and spikes are measured 9. MTBF is calculated using Bellcore TR-NWT-000332 (ground benign, directly at the output terminals of the power supply with a 0.1 µF ceramic TA = +40°C). POWER 152 Will Drive · Canton, MA 02021 USA · Phone 781-828-6216 · Fax 781-830-1155 · Email power@nidecpg.com · http://www.nidec.com GENERAL 11