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SELECTION GUIDE

FEATURES

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Industry Standard Footprint

■

Single Isolated Output

■

Short Circuit Protection

■

Operating Temperature Range

-40°C to +85°C

■

Low Profile 24 Pin Case

■

Efficiency to 82%

■

■

2:1 Wide Input Range

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5V, 12V, 24V & 48V Input

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3.3V, 5V, 9V, 12V & 15V Output

■

■

UL 94V-0 Package Materials

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No Heatsink Required

■

Internal SMD Construction

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Fully Encapsulated

■

Lead Free Compatible

DESCRIPTION

The NDY series is a range of low profile

DC/DC converters offering a single regulated

output over a 2:1 input voltage range. All

parts deliver 3W output power up to 85°C

without heatsinking, except the 4.5V to 9V

input voltage range which should be derated

to 2W at the lower input voltage. A flyback

oscillator design with isolated feedback is

used to give regulation over the full operating

range of 25% to 100% of full load. It is

strongly recommended that external

capacitors be used on input and output to

guarantee performance over full load and

input voltage range (see recommended filter

circuit for values). The plastic case and

encapsulant materials are rated to UL 94V-0

and the connection pins are formed from a

tin plated alloy 42 leadframe.

Nominal Rated

Input

Input

Output

Current

Voltage Voltage

Min Load

Full Load

Full Load

Order Code

(V)

(V)

(mA)

(mA)

(mA)

(%)

(pF)

kHrs

NDY0505

55

100 -150

400- 600

615

66

40

1939

NDY0509

59

55-83

222-333

563

72

52

1926

NDY0512

5

12

42-62

166-250

548

71

43

1907

NDY0515

515

33-50

133-200

533

73

44

1924

NDY1205

12

5

150

600

362

71

36

1928

NDY1209

12

9

83

333

320

78

52

1916

NDY1212

12

12

62

250

316

78

44

1897

NDY1215

12

15

50

200

308

79

47

1914

NDY2403

24

3.3

227

909

178

70

30

1671

NDY2405

24

5

150

600

174

70

36

1673

NDY2409

24

9

83

333

156

78

52

1663

NDY2412

24

12

62

250

154

80

44

1644

NDY2415

24

15

50

200

150

82

54

1657

NDY4803

48

3.3

227

909

87

71

30

1676

NDY4805

48

5

150

600

87

73

35

1668

NDY4809

48

9

83

333

78

80

52

1663

NDY4812

48

12

62

250

77

81

44

1648

NDY4815

48

15

50

200

76

81

53

1661

Parameter

Conditions

MIN

TYP

MAX

Units

All NDY05XX

4.5

5

9

Voltage Range

All NDY12XX

9

12

18

VDC

All NDY24XX

18

24

36

All NDY48XX

36

48

72

180

360

140

290

All NDY05XX

400

500

Ripple

All NDY12XX

150

170

mA p-p

Current

All other NDY24XX

290

360

All other NDY48XX

100

127

Short-circuit protection

continuous

Input voltage 05 types

10V

Input voltage 12 types

20V

Input voltage 24 types

40V

Input voltage 48 types

80V

Lead temperature 1.5mm from case for 10 seconds

300°C

Minimum Load

25% of rated load

Internal Dissipation

1.7W

INPUT CHARACTERISTICS

ABSOLUTE MAXIMUM RATINGS

1 Measured at full load with external input/output capacitors, refer to filter circuit 1.

2 For lower ripple refer to filter circuit 2.

3 Calculated using MIL-HDBK-217F with nominal input voltage at full load.

4 Refer to power derating graph.

NDY SERIES

Isolated 3W Wide Input DC/DC Converters