DC-DC 212 Watts xppower.com DMA Series • 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 General • 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 Efficiency Isolation Voltage Switching Frequency Power Density Signals • 15 A F rated in -ve line Output Output Voltage Output Voltage Trim Minimum Load • 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/µs. Output returns to within 1% in less than 500 µs 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 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 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. • 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 Narrow & Wide Band Noise Safety Approvals • 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 Max Output Power (10 CFM Air Flow) Output Voltage V1 Output Current (10 CFM Airflow) Fan Output V2 Standby Supply V3 Model Number 212 W 12.0 VDC 16.7 A 12.0 V/1.0 A 5.0 V/0.1 A DMA21248S12 Mechanical Details 5.00 (127.0) 0.22 (5.7) 0.22 (5.7) 4.55 (115.6) 4 X ø 0.14 (3.5) MOUNTING HOLES CN2 AIR FLOW 12 CFM 2.55 (64.8) CN2 CN3 (SCREW TYPE) CN1 (SCREW TYPE) 1.14 (28.9) 0.23 (5.7) 0.62 (15.8) 1.28 (32.6) 0.23 (5.7) SAFETY EARTH - 4.8 mm Faston 0.06 (1.6) PIN CONNECTIONS - CN1 0.08 (2.0) PIN CONNECTIONS - CN2 PIN CONNECTIONS - CN3 1 -Vin 1 +V2 1 +V1 2 +Vin 2 V2 Return 2 V1 Return 0.25” Faston Earth 3 V2 Return 4 ROF 5 ROF Return 6 Input Fail/DC OK 7 Current Share 8 +V3 9 -V3 10 +V2 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 DC-DC DMA Models and Ratings