NMD SERIES
Isolated 1W Twin Output
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
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
7 Pin SIP
1
GND
7
NC
pin connections
14 Pin DIP (top view)
V
IN
14
+V1 0V +V2 0V
11 10
9
8
description
The NMD series of DC-DC converters are
ideally suited to applications where a potential
difference exists between loads, eg motor con-
trol 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.
1
2
4
5
6
7
V
IN
GND
+V1 0V +V2 0V
DC-DC Converters
2-33
2 - NMD SERIES
5V & 12V Input
NMD SERIES
Isolated 1W Twin Output
absolute maximum ratings over operating free air* temperature range
Input voltage V
IN
NMD05 types . . . . . . . . . . . . . .
Input voltage V
IN
NMD12 types . . . . . . . . . . . . . .
Output power total . . . . . . . . . . . . . . . . . . . . .
Short-circuit duration . . . . . . . . . . . . . . . . . . . .
Input to output Isolation voltage (flash tested for 1 second) .
Output to output Isolation voltage (flash tested for 1 second)
Operating free air temperature range . . . . . . . . . . . .
Storage temperature range . . . . . . . . . . . . . . . . .
Lead temperature 1.5mm from case for 10 seconds . . . . .
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. . . . . . 7V
. . . . . 15V
. . . . . . 1W
. . . . . . 1s
. . 1000VDC
. . 1000VDC
. 0°C to 70°C
1
--55°C to 150°C
. . . . . 300°C
electrical specifications
(measured at T
A
=25°C, at nominal input voltage)
Input voltage range NMD05 types . . . . . . .
Input voltage range NMD12 types . . . . . . .
Load voltage regulation (10% to 100% full load)
3.3V and 5V output types . . . . . . . . . .
9V, 12V and 15V output types . . . . . . . .
Line voltage regulation (10% to 100% full load) .
Output voltage accuracy . . . . . . . . . . . .
Input reflected ripple (20 MHz Band limited) . .
Output ripple (20 MHz Band limited) . . . . . .
Insulation resistance at 500VDC . . . . . . . .
Efficiency at full load, 3.3V, 5V output type . . .
Efficiency at full load, 9V, 12V and 15V types . .
Temperature drift (V
OUT
) . . . . . . . . . .
Temperature rise above ambient at full load
Weight DIP and SIP types (typical) . . . . . .
Switching frequency at full load (typical) . . .
No load power consumption (typical) . . . .
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. . . . . . . . . . . . . . . 5V 10%
. . . . . . . . . . . . . . 12V 10%
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. . . . . . . . . 15% max.
. . . . . . . . . 10% max.
. . . . . . . 1.2%/1% of V
IN
See tolerance envelope graph
. . . . . . . 80mV p-p max.
. . . . . . . 75mV p-p max.
. . . . . . . 1000M min.
. . . . 70% typical 65% min.
. . . . 80% typical 70% min.
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0.03% per °C max.
. . . . . 8°C max.
. . . . 2.3 grams
. . . . . . 100kHz
. . . . . 100mW
* Free air -- requires a minimum of 10mm air space around the component.
1
See derating curve.
2-34
NMD SERIES
Isolated 1W Twin Output
selection guide
5V, 12V input types
Part Number
NMD050503D
NMDXX0505D
NMDXX0509D
NMDXX0512D
NMDXX0515D
NMD050503S
NMDXX0505S
NMDXX0509S
NMDXX0512S
NMDXX0515S
Output
Voltage 1
(V)
5
5
5
5
5
5
5
5
5
5
Output
Voltage 2
(V)
3.3
5
9
12
15
3.3
5
9
12
15
Output
Current 1
(mA)
100
100
100
100
100
100
100
100
100
100
Output
Current 2
(mA)
152
100
56
42
34
152
100
56
42
34
2
1
Package
Style
typical characteristics
NMD05 series
Note : All data taken at T
A
=25°C.
DC-DC Converters
2-35
2 - NMD SERIES
NMD SERIES
Isolated 1W Twin Output
typical characteristics
NMD12 series
tolerance envelope
temperature derating graph
Safe Operating Area
See application notes on page 2- 132
Note : All data taken at T
A
=25°C.
2-36
NMD SERIES
Isolated 1W Twin Output
mean time to failure (MTTF) in thousands of hours
Part Number
NMD050503
NMD050505
NMD050509
NMD050512
NMD050515
NMD120505
NMD120509
NMD120512
NMD120515
--25°C
1900
1900
775
392
216
567
396
264
170
25°C
1615
1615
669
339
187
489
343
229
148
70°C
1350
1350
578
296
164
299
200
130
Note : MTTF figures derived from hybrid model of MIL-HDBK-217F.
DC-DC Converters
2-37
2 - NMD SERIES
424
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