SELECTION GUIDE

FEATURES

s

BS EN 60950 Certified

s

UL 1950 Recognised

s

6kVDC Isolation

s

Dual Outputs

s

Low Profile Package

s

Efficiency to 80%

s

s

5V & 12V Input

s

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

s

s

UL 94V-0 Package Material

s

No Heatsink required

s

Internal SMD Construction

s

Toroidal Magnetics

s

Fully Encapsulated

s

MTTF up to 1.0 Million Hours

s

PCB Mounting

s

Custom Solutions Available

DESCRIPTION

The NMS Series of DC-DC Converters are UL

1950 recognised and fully certified to BS EN

60950, this makes them ideal for all Telecom

and safety applications where approved

isolation is required. The low profile package

allows mounting in rack systems without risk

of touching other boards. The output

configuration allows all of the rated power to

be drawn from a single pin provided the total

load does not exceed 2 Watts. The devices

feature low noise and low isolation

capacitance suitable for applications in high

noise enviroments, eg heavy electrical

machine interface.

Nominal

Input

Output

Output

Isolation

Voltage

Voltage

Current

Efficiency

Capacitance

Order Code

(V)

(V)

(mA)

(%)

(pF)

kHrs

NMS0505

5

±5

±200

74

1.8

747

NMS0509

5

±9

±111

76

1.9

327

NMS0512

5

±12

±83

77

2.0

169

NMS0515

5

±15

±67

78

2.1

93

NMS1205

12

±5

±200

78

1.9

365

NMS1209

12

±9

±111

81

2.0

224

NMS1212

12

±12

±83

82

2.1

136

NMS1215

12

±15

±67

82

2.2

82

When operated with additional external load capacitance the rise time of the input voltage will determine the

maximum external capacitance value for guaranteed start up. The slower the rise time of the input voltage the

greater the maximum value of the additional external capacitance for reliable start up.

Parameter

Conditions

MIN

TYP

MAX

Units

Continuous operation, 5V input types

4.5

5

5.5

Voltage Range

Continuous operation, 12V input types

10.8

12

13.2

V

Parameter

Conditions

MIN

TYP

MAX

Units

2

W

Voltage Set

Point Accuracy

See tolerance envelope

–7.5

10

%

Line Regulation High V

1.0

1.2

%/%

10% load to rated load, 5V output types

10

15

Load Regulation

10% load to rated load, 9V output types

6

15

%

10% load to rated load, 12V output types

6

15

10% load to rated load, 15V output types

6

15

Ripple & Noise BW=DC to 20MHz, all output types

200

mV p-p

1 second

Internal power dissipation

900mW

Lead temperature 1.5mm from case for 10 seconds

300°C

7V

15V

INPUT CHARACTERISTICS

OUTPUT CHARACTERISTICS

ABSOLUTE MAXIMUM RATINGS

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

2 See derating curve

3 Supply voltage must be discontinued at the end of the short circuit duration.

NMS SERIES

6kVDC Isolated 2W Dual Output DC-DC Converters

www.dc-dc.com