EMA212 Series 3.00 x 5.00 x 1.34 3 High Power Density 10.6 W/in Up to 90% Efficiency 5 V Standby & 12 V Fan Outputs Active Current Share Remote On/Off Power Good Signal -10 C to +70 C Operation Universal AC Input 90-264 VAC Level B Conducted Emissions 48 VDC Input Versions Available (DMA212) Designed for communications applications, the EMA212 has been developed to meet the needs of networking equipment, voice over IP systems, wireless LANs, servers, storage area networks and post-production broadcast equipment. Designers of these systems demand higher power from AC/DC units in industry-standard 1U formats as processing power and functionality grows within tight space constraints. The EMA212 delivers over 200W across the full universal AC input range from an industry-standard 3 x 5 inch (76.2 x 127 mm) footprint. It is 1.34 inches (34.04 mm) high and achieves 10.6 Watts per cubic inch power density without compromising performance or functionality. With efficiency up to 90% at full load, the EMA212 needs only 12 CFM air-flow for full power operation at up to 50 C ambient and will operate at up to 70 C ambient with de-rating. The main output is 12, 24 or 48 VDC but each power supply also has a 5 V, 100 mA standby output and a 12 V, 1 A output for powering a fan. The unit incorporates a fully featured signal set including AC fail/DC OK, remote on/off and active current sharing.xppower.com Models and Ratings Max Output Power Model Ouput Voltage Ouput Current Fan Output Standby Supply (12 CFM Air Flow) V1 (12 CFM Airflow) V2 V3 Number 212 W 12.0 VDC 16.7 A 12.0 V/1.0 A 5.0 V/0.1 A EMA212PS12 212 W 24.0 VDC 8.3 A 12.0 V/1.0 A 5.0 V/0.1 A EMA212PS24 205 W 48.0 VDC 4.0 A 12.0 V/1.0 A 5.0 V/0.1 A EMA212PS48 Input Characteristics Characteristic Minimum Typical Maximum Units Notes & Conditions Input Voltage - Operating 90 264 VAC Input Frequency 47 50/60 63 Hz Power Factor >0.9 230 VAC Input Current - No Load 110 mA Input Current - Full Load 2.1/1.1 A 115/230 VAC Inrush Current 60 A 230 VAC cold start Earth Leakage Current 0.5 1.1 mA 230/264 VAC 50 Hz Input Protection T5 A/250 V internal fuse in line Output Characteristics Characteristic Minimum Typical Maximum Units Notes & Conditions Output Voltage - V1 12 48 VDC See Models and Ratings table (V1) (V2) (V3) Initial Set Accuracy 1 , 5 & 3 % Output Voltage Adjustment Not available Minimum Load No minimum load required Start Up Delay 1.5 3 s 90 VAC full load (see fig. 1 to 3) Start Up Rise Time 20 ms Hold Up Time 16 20 ms 90 VAC full load (see fig. 4 to 6) Drift 0.2 % After 20 min warm up (V1) (V2) (V3) Line Regulation 0.5 , 2 & 0.5 % (V1) (V2) (V3) Load Regulation 1 , 5 & 1 % 0-100% load V1 & V3, 10-100% load V2 (V2) Cross Regulation 10 % 10-100% load change V1 Recovery within 1% in less than 500 s for a Transient Response - V1 4 % 25-75% and 75-25% load step (see fig. 7 & 8) Over/Undershoot - V1 2/5 % 12/48 V (see fig. 9) V1 V3 V2 Ripple & Noise 1( & ) & 2( ) % pk-pk 20 MHz bandwidth (see fig. 11 to 14) Overvoltage Protection 115 140 % Vnom DC. Output 1 only, recycle input to reset Overload Protection 110 140 % I nom Output 1 only, auto reset (see fig. 10) Short Circuit Protection Trip & Restart (Hiccup mode) Temperature Coefficient 0.05 %/C Overtemperature Protection C Primary & secondary protection 2