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40 Watt

Single, Dual and Triple Output Isolated, Wide Input

Over current protection for telecom and networking applications

With a miniature case of 2.0" x 2.0" x 0.4", our 40 watt single, dual and triple output DC-DC converter features over current protection, an on/off control and a six-sided shield. This design is ideal for telecom and networking applications.

MWA40B2ASeries

INPUT

  • Voltage Range:
    • 12Vin (nom): 9 Min., 12 Typ., 18 Max. Vdc
    • 24Vin (nom): 18 Min., 24 Typ., 36 Max. Vdc
    • 48Vin (nom): 36 Min., 48 Typ., 75 Max. Vdc
  • Start Up Voltage:
    • 12Vin (nom): 9 Max. Vdc
    • 24Vin (nom): 17.8 Max. Vdc
    • 48Vin (nom): 36 Max. Vdc
  • Shutdown Voltage:
    • 12Vin (nom): 7 Min., 8 Typ., 8.8 Max. Vdc
    • 24Vin (nom): 15 Min., 16 Typ., 17.5 Max. Vdc
    • 48Vin (nom): 32.5 Min., 34 Typ., 35.5 Max. Vdc
  • Start up time:
    • Constant Resistive Load
      • Power Up: 25 Typ. mS
      • Remote On/Off: 25 Typ. mS
  • Input Surge Voltage:
    • 12Vin (nom), 100ms, Max.: 36 Max. Vdc
    • 24Vin (nom): 50 Max. Vdc
    • 48Vin (nom): 100 Max. Vdc
  • Input Filter: L-C type
  • Start Up Time:
    • Referred to -Vin pin
      • Positive Logic DC-DC ON: Open or 3.5-12 Vdc
      • DC-DC OFF: Short or 0-1.2 Vdc
      • Input Current of Ctrl Pin: -0.5 Min., 0.5 Max. Vdc
      • Remote OFF Input Current: 2.5 Typ. Vdc

OUTPUT

  • Voltage Accuracy:
    • Single/Dual: ±1%
    • Triple, 3.3Vout, 5Vout: ±1%
    • Truple, 12Vout, 15Vout: ±5%
  • Line Regulation:
    • Low Line to High Line at Full Load
      • Single/Dual: ±0.5%
      • Triple, 3.3Vout, 5Vout: ±1%
      • Truple, 12Vout, 15Vout: ±5%
  • Load Regulation:
    • Min. load to full load, Single and Dual
    • Single: ±0.5%
    • Dual: ±1%
    • Main Output: (3.3Vout, 5Vout) 10% to 100% with 10% to 100% balanced on auxiliaries, Triple
    • Triple, 3.3Vout, 5Vout: ±2%
    • Triple, 12Vout, 15Vout: ±5%
    • Auxiliary outputs 10% to 100% balanced on all outputs
  • Cross Regulation:
    • Asymmetrical load 25%/100% FL, Dual: ±5%
    • Main output: (3.3Vout, 5Vout) 100% load, auxiliary 100%, other auxiliary 25% to 100% load or main output: (3.3Vout, 5Vout) 25%, auxiliary 25%, other auxiliary 25% to 100%, Triple
    • Triple, 3.3Vout, 5Vout: ±1%
    • Triple, 12Vout, 15Vout: ±5%
  • Voltage Adjustability: Single and Dual output (not including DUal Positive and Triple), -10 Min., 10 Max. %
  • Ripple and noise
    • 20MHz bandwidth
    • With a 0.1uF/50V MLCC
    • Single, Others: 50 Typ. mVp-p
    • Single, 12Vout, 15Vout: 75 Typ. mVp-p
    • Dual, 12Vout: 120 Typ. mVp-p
    • Dual, 15Vout: 150 Typ. mVp-p
    • Triple, 3.3Vout, 5Vout: 50 Typ. mVp-p
    • Triple, 12Vout, 15Vout: 75 Typ. mVp-p
    • With a 1uF ceramic output capacitors
    • Dual Positive, 3.3Vout, 5Vout: 100 Typ. mVp-p
  • Temperature Coefficient: ±0.02%/°C Max.
  • Transient Response recovery time: 25% load step change, 250 Typ. µS
  • Overvoltage Protection: Zener Diode Clamp
    • 1.5Vout: 3.9 Typ. Vdc
    • 1.8Vout: 3.9 Typ. Vdc
    • 2.5Vout: 3.9 Typ. Vdc
    • 3.3Vout: 3.9 Typ. Vdc
    • 5Vout: 6.2 Typ. Vdc
    • 12Vout: 15 Typ. Vdc
    • 15Vout: 18 Typ. Vdc
  • Over Load Protection: % of lout rated, 150 Max. %
  • Short Circuit Protection: Continuous, automatic recovery

GENERAL SPECIFICATIONS

  • Isolation Voltage:
    • Input to Output: 1600 Vdc, Min., 1 minute
    • Input (Output) to case: 1600 Vdc, Min.
  • Isolation Resistance: 1 Min., 500Vdc
  • Isolation Capacitance: 1000 pF, Max.
  • Switching Frequency:
    • Others, 270 Min., 300 Typ., 330 Max., kHz
    • Dual Positive, 5Vout, 270 Min., 300 Typ., 330 Max., kHz
    • Dual Positive, 3.3 Vout, 450 Min., 500 Typ., 550 Max., kHz

ENVIRONMENTAL SPECIFICATIONS

  • Operating Ambient Temperature: With derating, -40 Min., 85 Max. °C
  • Maximum Case Temperature: 100 Max. °C
  • Over Temperature Protection: 115 Typ.. °C
  • Storage Temperature Range: -55 Min., 125 Max. °C
  • Thermal Impedance:
    • 9.2 Typ. °C without heat-sink
    • 7.6 Typ. °C with heat-sink
    • 2.8 Typ. °C with heat-sink (500LFM)
  • Thermal Shock: MIL-STD-810F
  • Vibration: MIL-STD-810F
  • Relative Humidity: 5% to 95% RH

PHYSICAL SPECIFICATIONS

  • Design Meet Safety Standard: IEC/UL/EN60950-1, UL:E193009, CB:UL(Demko)
  • Case Material: Nickel-coated copper
  • Base Material: FR4 PCB
  • Potting Material: Epoxy (UL94 V-0)
  • Weight: 60g (2.11oz)
  • Dimensions: 2” × 2” × 0.4” (50.8mm × 50.8mm × 10.2mm)
  • MTBF: 9.224 × 105 hrs , MIL-HDBK-217F, Full load

EMC SPECIFICATIONS

  • EMI: EN55032, With external components, Class A, Class B
  • ESD: EN61000-4-2, Air ±8kV and Contact ±6kV, Perf. Criteria A
  • Radiated Immunity: EN61000-4-3, 10V/m, Perf. Criteria A
  • Fast Transient: EN61000-4-4, ±2KV, With an external input filter capacitor (Nippon chemi-con KY series, 220 μF/100V), Perf. Criteria B
  • Surge: EN61000-4-5, ±1KV, With an external input filter capacitor (Nippon chemi-con KY series, 220 μF/100V), Perf. Criteria B
  • Conducted Immunity: EN61000-4-6, 10 Vr.m.s, Perf. Criteria A
  • Power Frequency Magnetic Field: EN61000-4-8, 100 A/m continuous; 1000 A/m 1 second, Perf. Criteria A
    Output Current        
Input Voltage
(Vdc)		 Output Voltage
(Vdc)		 Min. load
(mA)		 Full load
(mA)		 Input Current at No Load
(mA)		 Efficiency
(%)		 Model Number Max. Capacitor Load
(μF)
Single Output
9 - 18 1.5 0 8000 110 84 MWA40-12S1.5/B2A 45000
9 - 18 1.8 0 8000 110 82 MWA40-12S1.8/B2A 37700
9 - 18 2.5 0 8000 110 84 MWA40-12S2.5/B2A 27000
9 - 18 3.3 0 8000 175 86 MWA40-12S3.3/B2A 21000
9 - 18 5 0 8000 225 86 MWA40-12S5/B2A 13600
9 - 18 12 0 3333 255 86 MWA40-12S12/B2A 2360
9 - 18 15 0 2666 310 87 MWA40-12S15/B2A 1510
18 - 36 1.5 0 8000 40 81 MWA40-24S1.5/B2A 45000
18 - 36 1.8 0 8000 40 83 MWA40-24S1.8/B2A 37700
18 - 36 2.5 0 8000 40 86 MWA40-24S2.5/B2A 27000
18 - 36 3.3 0 8000 60 87 MWA40-24S3.3/B2A 21000
18 - 36 5 0 8000 80 89 MWA40-24S5/B2A 13600
18 - 36 12 0 3333 70 88 MWA40-24S12/B2A 2360
18 - 36 15 0 2666 85 89 MWA40-24S15/B2A 1510
36 - 75 1.5 0 8000 25 82 MWA40-48S1.5/B2A 45000
36 - 75 1.8 0 8000 25 84 MWA40-48S1.8/B2A 37700
36 - 75 2.5 0 8000 25 86 MWA40-48S2.5/B2A 27000
36 - 75 3.3 0 8000 35 88 MWA40-48S3.3/B2A 21000
36 - 75 5 0 8000 40 90 MWA40-48S5/B2A 13600
36 - 75 12 0 3333 50 89 MWA40-48S12/B2A 2360
36 - 75 15 0 2666 50 89 MWA40-48S15/B2A 1510
Dual and Triple Output
9 - 18 ±12 ±144 ±1800 30 85 MWA40-12-12/B2A ±1200
9 - 18 ±15 ±112 ±1400 35 85 MWA40-12-15/B2A ±750
9 - 18 3.3/5 0 4000/4000 325 85 MWA40-12S33S5/B2A 11000/6800
9 - 18 3.3/±12 600/±40 6000/±400 215 84 MWA40-12S33-12/B2A 13000/±330
9 - 18 3.3/15 600/±30 6000/±300 230 84 MWA40-12S33-15/B2A 13000/±110
9 - 18 5/±12 600/±40 6000/±400 280 86 MWA40-12S5-12/B2A 6800/±330
9 - 18 5/±15 600/±30 6000/±300 255 86 MWA40-12S5-15/B2A 6800/±110
18 - 36 ±12 ±144 ±1800 20 87 MWA40-24-12/B2A ±1200
18 - 36 ±15 ±112 ±1400 20 87 MWA40-24-15/B2A ±750
18 - 36 3.3/5 0 4000/4000 80 86 MWA40-24S33S5/B2A 11000/6800
18 - 36 3.3/±12 600/±40 6000/±400 65 85 MWA40-24S33-12/B2A 13000/±330
18 - 36 3.3/±15 600/±30 6000/±300 65 85 MWA40-24S33-15/B2A 13000/±110
18 - 36 5/±12 600/±40 6000/±400 60 87 MWA40-24S5-12/B2A 6800/±330
18 - 36 5/±15 600/±30 6000/±300 75 87 MWA40-24S5-15/B2A 6800/±110
36 - 75 ±12 ±144 ±1800 15 87 MWA40-48-12/B2A ±1200
36 - 75 ±15 ±112 ±1400 15 87 MWA40-48-15/B2A ±750
36 - 75 3.3/5 0 4000/4000 45 88 MWA40-24S33S5/B2A 11000/6800
36 - 75 3.3/±12 600/±40 6000/±400 35 86 MWA40-48S33-12/B2A 13000/±330
36 - 75 3.3/±15 600/±30 6000/±300 35 86 MWA40-48S33-15/B2A 13000/±110
36 - 75 5/±12 600/±40 6000/±400 30 88 MWA40-48S5-12/B2A 6800/±330
36 - 75 5/±15 600/±30 6000/±300 40 88 MWA40-48S5-15/B2A 6800/±110

Notes

The output requires a minimum loading on the output to maintain specified regulation. Operation under no-load condition will not damage these devices, however they may not meet all listed specification.

Any condition of dual output (3.3Vout, 5Vout) rated lout current do not exceed 8A of total output currents.