Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833

603-778-2300 www.wallindustries.com Fax 603-778-9797

MDW Ultra Wide Series

Single and Dual Output

20 Watt DC/DC Converter

4:1 Wide Input Voltage Range

SAFETY & EMC

Safety Standard Pending ................. IEC60950-1, UL60950-1, EN60950-1

EMI (See Note 8) ............... EN55022.............................................Class A

ESD.................... EN61000-4-2……..

……Perf. Criteria B

Radiated Immunity........... EN61000-4-3……………10V/m Perf. Criteria A

Fast Transient.................. EN61000-4-4 ................... ±2KV Perf. Criteria B

Surge (See Note 9).......... EN61000-4-5……………..±1KV Perf. Criteria B

Conducted Immunity…… EN61000-4-6……….…10 Vrms Perf. Criteria A

OUTPUT VOLTAGE / CURRENT RATING CHART

Output Current

Input Current

Model Number

Input

Range

Output

Voltage

Min. load Full load

Output

(4)

Efficiency

(4)

Capacitor

(5)

Load max

MDW24S3.3-5500

3.3 VDC

0mA

5500mA

60mVp-p

50mA

934mA

85%

18000uF

MDW24S5-4000

5 VDC

0mA

4000mA

75mVp-p

65mA

992mA

88%

9600uF

MDW24S12-1670

12 VDC

0mA

1670mA

75mVp-p

22mA

1018mA

86%

1650uF

MDW24S15-1330

15 VDC

0mA

1330mA

75mVp-p

22mA

1014mA

86%

1050uF

MDW24D5-2000

±5 VDC

0mA

±2000mA

100mVp-p

55mA

992mA

88%

±4800uF

MDW24D12-833

±12VDC

0mA

±833mA

100mVp-p

30mA

1004mA

87%

±825uF

MDW24D15-667

24 VDC

(9-36 VDC)

±15VDC

0mA

±667mA

100mVp-p

30mA

1005mA

87%

±525uF

MDW48S3.3-5500

3.3 VDC

0mA

5500mA

60mVp-p

35mA

467mA

85%

18000uF

MDW48S5-4000

5 VDC

0mA

4000mA

75mVp-p

35mA

496mA

88%

9600uF

MDW48S12-1670

12 VDC

0mA

1670mA

75mVp-p

15mA

503mA

87%

1650uF

MDW48S15-1330

15 VDC

0mA

1330mA

75mVp-p

15mA

501mA

87%

1050uF

MDW48D5-2000

±5 VDC

0mA

±2000mA

100mVp-p

35mA

490mA

89%

±4800uF

MDW48D12-833

±12VDC

0mA

±833mA

100mVp-p

17mA

496mA

88%

±825uF

MDW48D15-667

48 VDC

(18-75 VDC)

±15VDC

0mA

±667mA

100mVp-p

17mA

496mA

88%

±525uF

NOTES

1.

BELLCORE TR-NWT-000332. Case 1: 50% Stress, Temperature at 40ºC (Ground fixed and controlled environment).

MIL-STD-217F Notice2 @Ta=25 ºC, Full load (Ground, Benign, controlled environment)

2.

Maximum value at nominal input voltage and full load.

3.

Typical value at nominal input voltage and no load.

4.

Typical value at nominal input voltage and full load.

5.

Test by minimum Vin and constant resistive load.

6.

The ON/OFF control pin voltage is referenced to -Vin.

To order negative logic ON/OFF control add the suffix ”R” (Ex: MDW48S5-4000R)

7.

Heat sink is optional, consult factory for ordering details.

8.

The MDW Series can meet EN55022 Class A with an external capacitor in parallel with the input pins.

Recommended: 24Vin: NA.

48Vin: 1µF/100V

9.

An external filter capacitor is required if the module has to meet EN61000-4-5. The filter capacitor Wall Industries suggests: Nippon chemi-con

KY Series, 220uF/100V, ESR 48mΩ.

Air

± 8KV

Contact ± 6KV

FED20-48S05W Derating Curve

0

20

40

60

80

100

120

-40

-20

0

20406080

100

120

AMBIENT TEMPERATURE(℃)

72

Natural convection

100LFM

200LFM

300LFM

400LFM

500LFM

105

DERATING CURVES & EFFICIENCY GRAPHS

FED20-48S05W Derating Curve

With Heatsink (Note 7 )

0

20

40

60

80

100

120

-40

-20

0

20

40

60

80

100

120

AMBIENT TEMPERATURE(℃)

Natural convection

100LFM

200LFM

300LFM

400LFM

500LFM

105

78

FED20-48S05W

Efficiency VS Output Load

45

50

55

60

65

70

75

80

85

90

95

10

20

30

40

50

60

70

80

90

100

OUTPUT LOAD (% of Full Load)

FED20-48S05W

Efficiency VS Input Voltage

78%

80%

82%

84%

86%

88%

90%

18

24

30

36

42

48

54

60

66

72

INPUT VOLTAGE (V)

MDW48S5-4000

DERATING CURVE

MDW48S5-4000

Efficiency vs Input Voltage

MDW48S5-4000

Efficiency vs Input Voltage

MDW48S5-4000

DERATING CURVE

With Heatsink (Note 7)