CD Technologies NMA User Manual

查询NMA0505D供应商

FEATURES

■ Wide Temperature performance at

full 1 Watt load, –40°C to 85°C

■ Dual Output from a Single Input Rail

■ Industry Standard Pinout

■ Power Sharing on Output

■ 1kVDC Isolation

■ Efficiency to 78%

■ Power Density up to 0.85W/cm

■ 5V & 12V Input

■ 5V, 9V, 12V and 15V Output

■ Footprint from 1.17cm

■ UL 94V-0 Package Material

■ No Heatsink Required

■ Internal SMD Construction

■ Toroidal Magnetics

■ Fully Encapsulated

■ No External Components Required

■ MTTF up to 2.1 Million hours

■ Custom Solutions Available

■ No Electrolytic or Tantalum

Capacitors

DESCRIPTION

The NMA series of industrial temperature
range DC-DC converters are the standard
building blocks for on-board distributed
power systems. They are ideally suited for
providing dual rail supplies on primarily
digital boards with the added benefit of
galvanic isolation to reduce switching noise.
All of the rated power may be drawn from
a single pin provided the total load does not
exceed 1watt.

2

NMA 5V & 12V SERIES

Isolated 1W Dual Output DC-DC Converters

SELECTION GUIDE

Nominal

Input Output Output Input Current

Voltage Voltage Current at Rated Load MTTF

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

NMA0505D 5 5 ±100 289 69 28 1697
NMA0509D 5 9 ±55 270 75 32 682
NMA0512D 5 12 ±42 266 77 34 343
NMA0515D 5 15 ±33 263 78 36 188
NMA0505S 5 5 ±100 289 69 28 1697
NMA0509S 5 9 ±55 270 75 32 682
NMA0512S 5 12 ±42 266 77 34 343
NMA0515S 5 15 ±33 263 78 36 188
NMA1205D 12 5 ±100 120 69 33 559
NMA1209D 12 9 ±55 113 74 46 375
NMA1212D 12 12 ±42 111 75 55 243
NMA1215D 12 15 ±33 110 76 54 154

3

NMA1205S 12 5 ±100 120 69 33 559
NMA1209S 12 9 ±55 113 74 46 375
NMA1212S 12 12 ±42 111 75 55 243
NMA1215S 12 15 ±33 110 76 54 154

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

Reflected Ripple Current 20 33 mA p-p

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= –40°C to 120°C 1 W
Voltage Set

Point Accuracy
Line Regulation High VINto low V

Load Regulation

Ripple & Noise

See tolerance envelope

10% load to rated load, 5V output types 10 12.5

IN

10% load to rated load, 9V output types 9 10
10% load to rated load, 12V output types 6.5 7.5
10% load to rated load, 15V output types 6 7.5
BW=DC to 20MHz, 5V output types 40 75
BW=DC to 20MHz, 9V output types 25 50
BW=DC to 20MHz, 12V output types 25 50
BW=DC to 20MHz, 15V output types 20 50

1.0 1.2 %/%

ABSOLUTE MAXIMUM RATINGS

Short-circuit duration
Internal power dissipation 450mW
Lead temperature 1.5mm from case for 10 seconds 300°C
Input voltage VIN, NMA05 types 7V
Input voltage VIN, NMA12 types 15V

3

1 second

1

DIP

SIP

DIP

SIP

V

%

mV p-p

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.

NMA 5V & 12V SERIES

Isolated 1W Dual 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 10 GΩ

GENERAL CHARACTERISTICS

Parameter Conditions MIN TYP MAX Units

Switching Frequency

5V input types 110
12V input types 140

kHz

TEMPERATURE CHARACTERISTICS

Parameter Conditions MIN TYP MAX Units

Specification All output types -40 85 °C
Storage -50 130 °C
Case Temperature

Above Ambient

5V output types 33
All other output types 28

°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 +V
11 –V
14 V

IN

7 Pin SIP

PIN

1 V
2 GND
4 –V
5 0V
6 +V

IN

10 50 100

Output Load Current (%)

MECHANICAL DIMENSIONS

14 Pin DIP

Weight: 2.4g

NMA0505D

9.80

7 Pin SIP

Weight: 2.1g

6.00

XYYWWi

19.50

19.50

4.60

3.60

4.60

3.60

6.80

NMA0505S

10.0

1 2 5 64

0.55

0.45

XYYWWi

2.54

0.5

Safe Operating Area

0

-40 0 50 100 150
Ambient Temperature (°C)

7.62

2.54

1.25

0.55

0.45

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

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

15.24 1.092.13

2.00

12.70

71

891114

0.55

0.45

0.30

0.20

0.30

0.20

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 NMA.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]