cdtechno NMD050503D, NMD050503S, NMD050505S, NMD050512D, NMD050509S Datasheet

FEATURES

■ Twin Independent Outputs

■ Output/Output Isolation 1kVDC

■ Power Sharing on Outputs

■ Input/Output Isolation 1kVDC

■ SIP & DIP Package Styles

■ Efficiency to 80%

■ Power Density 0.85W/cm

3

■ 5V & 12V Input

■ One 5V Output (V1)

■ 3.3V, 5V, 9V, 12V

and 15V Output (V2)

■ Footprint from 1.17cm

2

■ UL 94V-0 Package Material

■ No Heatsink Required

■ Internal SMD Construction

■ Toroidal Magnetics

■ Fully Encapsulated

■ No External Components Required

■ MTTF up to 1.9 Million hours

■ PCB Mounting

■ Custom Solutions Available

DESCRIPTION

The NMD series of DC-DC converters are
ideally suited to applications where a
potential difference exists between loads, eg
motor control circuits. The twin outputs offer
cost and space savings by consolidating two
DC-DC Converters into one package. All of
the rated power may be drawn from a single
output provided the total load does not
exceed 1 Watt.

NMD SERIES

Isolated 1W Twin Output DC-DC Converters

SELECTION GUIDE

Nominal

Input Output Output Output Output

Voltage Voltage 1 Voltage 2 Current 1 Current 2 Efficiency MTTF

Order Code (V) (V) (V) (mA) (mA) (%) kHrs

NMD050503D 5 5 3.3 100 152 70 1615 DIP

NMD050503S 5 5 3.3 100 152 70 1615 SIP

NMD050505D 5 5 5 100 100 70 1615 DIP

NMD050505S 5 5 5 100 100 70 1615 SIP

NMD050509D 5 5 9 100 56 80 669 DIP

NMD050509S 5 5 9 100 56 80 669 SIP

NMD050512D 5 5 12 100 42 80 339 DIP

NMD050512S 5 5 12 100 42 80 339 SIP

NMD050515D 5 5 15 100 34 80 187 DIP

NMD050515S 5 5 15 100 34 80 187 SIP

NMD120505D 12 5 5 100 100 70 489 DIP

NMD120505S 12 5 5 100 100 70 489 SIP

NMD120509D 12 5 9 100 56 80 343 DIP

NMD120509S 12 5 9 100 56 80 343 SIP

NMD120512D 12 5 12 100 42 80 229 DIP

NMD120512S 12 5 12 100 42 80 229 SIP

NMD120515D 12 5 15 100 34 80 148 DIP

NMD120515S 12 5 15 100 34 80 148 SIP

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.

INPUT CHARACTERISTICS

Parameter Conditions MIN TYP MAX Units

Voltage Range

Continuous operation, 5V input types 4.5 5 5.5
Continuous operation, 12V input types 10.8 12 13.2

OUTPUT CHARACTERISTICS

Parameter Conditions MIN TYP MAX Units

Rated Power2TA= 0°C to 125°C 1 W
Voltage Set

Point Accuracy
Line Regulation High VINto low V

See tolerance envelope

IN

1.0 1.2 %/%
10% load to rated load, 3.3V output types 15
10% load to rated load, 5V output types 15

Load Regulation 10% load to rated load, 9V output types 10 %

10% load to rated load, 12V output types 10
10% load to rated load, 15V output types 10

Ripple & Noise BW=DC to 20MHz, All output types 75 mV p-p

ABSOLUTE MAXIMUM RATINGS

Short-circuit duration
Lead temperature 1.5mm from case for 10 seconds 300°C
Input voltage VIN, NMD05 types 7V
Input voltage VIN, NMD12 types 15V

3

1 second

1

V

www.dc-dc.com

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.

All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified.

NMD SERIES

Isolated 1W Twin Output DC-DC Converters

ISOLATION CHARACTERISTICS

Parameter Conditions MIN TYP MAX Units

Isolation Test Voltage Flash tested for 1 second 1000 VDC
Resistance Viso=500VDC 1 GΩ

GENERAL CHARACTERISTICS

Parameter Conditions MIN TYP MAX Units

Switching Frequency All input types 100 kHz

TEMPERATURE CHARACTERISTICS

Parameter Conditions MIN TYP MAX Units

Specification All output types 0 70 °C
Storage –55 150 °C
Cooling Free air convection

PERFORMANCE CHARACTERISTICS

+10%

+5%

V nominal

tolerance envelope

+2.5%

-2.5%

-7.5%

temperature derating graph

2.0

1.5

1.0

PIN CONNECTIONS

14 Pin DIP

PIN

1 GND
7 NC
8 0V

9 +V2
10 0V
11 +V1
14 V

IN

7 Pin SIP

PIN

1 V
2 GND
4 +V1
5 0V
6 +V2
7 0V

IN

10 50 100

Output Load Current (%)

MECHANICAL DIMENSIONS

14 Pin DIP

Weight: 2.3g

NMD050509D

9.80

7 Pin SIP

Weight: 2.3g

6.00

YYWW

19.80

19.50

6.80

4.1

NMD120515S

10.0

4.1

1 2 5 6 74

7.62

YYWW

0.50±0.05

0.5

Safe Operating Area

0

–40 0 50 70 100 125 150

Ambient Temperature (°C)

15.24

7.62

0.50±0.05

2.00

1.25

15.24

0.50±0.05

All dimensions in mm XX.XX ±0.25mm. All pins on a

2.54mm pitch and within ±0.25mm of true position.

71

8911 1014

0.25±0.05

0.25±0.05

C&D Technologies (NCL) Limited reserve the right to alter or improve the
specification, internal design or manufacturing process at any time, without
notice. Please check with your supplier or visit our web site to ensure that
you have the current and complete specification for your product before use.

© C&D Technologies (NCL) Limited 2001 NDC NMD.3

No part of this publication may be copied, transmitted or stored in a
retrieval system or reproduced in any way including, but not limited to,
photography, photocopy, magnetic or other recording means, without prior
written permission from C&D Technologies (NCL) Limited.

Instructions for use are available from www.dc-dc.com

C&D Technologies (NCL) Ltd

Tanners Drive, Blakelands North
Milton Keynes MK14 5BU, England
Tel: [phone]
Fax:[phone]
email: [e-mail]

www: http://www.dc-dc.com

C&D Technologies (NCL), Inc.

5816 Creedmoor Road, Raleigh
NC 27612, USA
Tel: [phone]
Fax: [phone]
email: [e-mail]