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| DC-DC 212 Watts DMA Series * * * * * * * xppower.com Open Frame Telecom DC-DC Converter -48 VDC Input ETSI Compliant NEBS Compliant 5 V Standby & 12 V Fan Outputs Remote On/Off & Power Good Signal AC Input Version Available (EMA212) Specification Input Input Voltage Range Input Current Input Reverse Voltage Protection Input Transient Undervoltage Lockout Protection Fusing * 48 VDC nominal (36 - 75 VDC). Can be configured as -48 VDC input * 5 A typical. 7 A max. * Continuous protection with automatic recovery * Compliant with ETSI EN300 132:2003 * 32 - 35V DC * 15 A F rated in -ve line General Efficiency Isolation Voltage * 88% typical * 1500 VDC Input to Output (basic insulation), 1000 VDC Input to Ground, 500 VDC Output to Ground. * 60 kHz typical * 11 W/In3 * Combined input & DC OK - Open collector referenced to output 0 V, transistor normally off when input & output good. Input fail provides 5 ms warning of loss of output from input failure. DC OK provides warning of DC output failure. * 550 kHrs per MIL-HDBK-217F Switching Frequency Power Density Signals Output * V1: 12 V, see table * Not fitted * 10% minimum load required on V1 to meet all specification parameters of V2 & V3. Line Regulation * V1:0.5%, V2: 5%, V3:3% of nominal with input variation of 36-75 VDC Load Regulation * V1:1%, V2: 5%, V3:3% of nominal with load variation 10-100% Setpoint Accuracy * V1:1%, V2: 5%, V3:3% of nominal with 48V DC input and 50% load Turn-on Time * 2 s typical from application of DC input Transient Response * <4% deviation with a 50-75-50% load change at 1 A/s. Output returns to within 1% in less than 500 s Ripple & Noise * 1% max pk-pk 20MHz bandwidth Overvoltage Protection * V1:115-140% of nominal, recycle input DC to reset Overload Protection * V1:110-125% of max current Short Circuit Protection * Continuous protection, trip and restart (hiccup mode) characteristic Temperature * 0.02%/C (after 20 minute warm up) Coefficient Output Voltage Output Voltage Trim Minimum Load MTBF Environmental Operating Temperature * 0 C to +50 C with full load, derate linearly to 50% load at 70 C with force cooling 10CFM minimum Cooling * Forced cooled (see operating temperature) Operating Humidity * 0 to 95% RH non condensing. (1,3) Storage Temperature * -40 C to +80 C. (2,3) Storage Humidity * 0 to 95% RH non condensing.(2,3) Operating Altitude * 3000m.(3) Shock * 3 shocks in each axis (total 18 shocks) 30g 11ms (half sine). (1,4) Vibration * 2g, 10 - 500Hz 10 sweeps. (1,5) EMC & Safety Emissions * EN61204-3 2000, EN55022 class A conducted & radiated, ETSI EN 300 132-2 2003, ETSI 300 386-1 1994, NEBS GR1089-CORE issue 4 * EN61000-4-4 level 1 Perf Criteria A, ETSI 300 386-1 1994 * EN61000-4-5 level 1 Perf Criteria A, * EN61000-4-6 level 2 Perf Criteria A, ETSI 300 386-1 1994, NEBS GR-1089-Core issue 4 * ETSI EN 300 132-2 2003 * EN60950-1:2006, CSA-C22.2 No. 609501-03, CB Report IEC60950-1:2005, CE Marked to LVD EFT/Burst Surge Conducted Immunity Notes 1. Compliant with ETS 300 019-1-3 May 1992 + ammendment 1 June 1997 class 3.1. 2. Compliant with ETS 300 019-1-1 Feb 1992 class 1.1, ETS 300 019-1-2 Feb 1992 class 2.2. 3. Compliant with NEBS GR-63-Core issue 3. 4. Compliant with EN60068-2-27. 5. Compliant with EN60068-2-6. Narrow & Wide Band Noise Safety Approvals DC-DC Models and Ratings Max Output Power (10 CFM Air Flow) 212 W Output Voltage V1 12.0 VDC Output Current (10 CFM Airflow) 16.7 A Fan Output V2 12.0 V/1.0 A Standby Supply V3 5.0 V/0.1 A DMA Model Number DMA21248S12 Mechanical Details 5.00 (127.0) 0.22 (5.7) 4.55 (115.6) 4 X o 0.14 (3.5) MOUNTING HOLES 0.22 (5.7) CN2 CN2 AIR FLOW 12 CFM 2.55 (64.8) CN1 (SCREW TYPE) CN3 (SCREW TYPE) 1.14 (28.9) 0.62 (15.8) 0.23 (5.7) SAFETY EARTH - 4.8 mm Faston 0.23 (5.7) 1.28 (32.6) 0.06 (1.6) 0.08 (2.0) PIN CONNECTIONS - CN1 1 2 0.25" Faston -Vin +Vin Earth PIN CONNECTIONS - CN2 1 2 3 4 5 6 7 8 9 10 +V2 V2 Return V2 Return ROF ROF Return Input Fail/DC OK Current Share +V3 -V3 +V2 PIN CONNECTIONS - CN3 1 2 +V1 V1 Return Mating Connectors: CN2: Molex housing 511101050 and crimp 503948100. Notes 1. 2. 3. 4. All dimensions in inches (mm). Tolerance .xx = 0.02 (0.50); .xxx = 0.01 (0.25) Units supplied with screw terminal (CN2) as standard. For faston type, add suffix `-F' to the part number. All 4 mounting positions should be connected to safety earth. The air flow needs to be directed through the power supply within the end application. 01-Aug-08 |
Price & Availability of DMA21248S12
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