Rev. A

RGUW2 Series

Single & Dual Outputs

4:1 Input Voltage Range

2 Watt DC/DC Power Converters

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

09/21/2010

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

Page 4 of 6

NOTES

1. BELLCORE TR-NWT-000332. Case 1: 50% Stress, Temperature at 40°C.

MIL-HDBK-217F Notice2 @Ta=25°C, 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 RGUW2 series meets EN55022 Class A and input reflected ripple current with an external L-C filter before the input pins to the

converter. (See Class B figure for connecting network)

Recommended: 12Vin: C1=10µF/25V 1812 MLCC C3=220pF/3KV 1808 MLCC L1=2.2µH 0504 SMD Inductor P/N: PMT-059

24Vin: C1=6.8µF/50V 1812 MLCC C3=220pF/3KV 1808 MLCC L1=18µH 0504 SMD Inductor P/N: PMT-046

48Vin: C1=4.7µF/100V 1812 MLCC C3=220pF/3KV 1808 MLCC L1=18µH 0504 SMD Inductor P/N: PMT-046

7. An external input filter capacitor is required if the module has to meet EN61000-4-4, EN61000-4-5. The filter capacitor suggested is

Nippon chemi-con KY series, 220μF /100V, ESR 48mΩ.

8. To order surface mount version, add the suffix “S” to the model number (Ex: RG24S5UW2S).

9. To order 3000VDC I/O isolation version, add the suffix “H” to the model number (Ex: RG24S5UW2H).

10. CAUTION: Internal fusing is not included so we suggest using an input line fuse.

REMOTE ON/OFF APPLICATION CIRCUITS

+Input

-Input

3mA current

Source

Ctrl

1K



DC-DC ON

+Input

-Input

3mA current

Source

Ctrl

1K



DC-DC OFF

CHARACTERISTICS

RG48S5UW2 Efficiency vs Input Voltage

RG48S5UW2 Efficiency vs Output Load

65

70

75

80

85

18

24

30

36

42

48

54

60

66

72

75

INPUT VOLTAGE(V)

30

40

50

60

70

80

90

10

20

30

40

50

60

70

80

90

100

% OF FULL LOAD