NMH SERIES
Isolated 2W Dual Output DC-DC Converters
SELECTION GUIDE
Nominal
Input
Voltage Voltage
Output
Output
Current at Rated Load
Input Current
1
MTTF
Order Code
NMH0505S
NMH0509S
NMH0512S
NMH0515S
NMH1205S
NMH1209S
NMH1212S
NMH1215S
NMH2405S
NMH2409S
NMH2412S
NMH2415S
NMH4805S
NMH4809S
NMH4812S
NMH4815S
(V)
5
5
5
5
12
12
12
12
24
24
24
24
48
48
48
48
(V)
5
9
12
15
5
(mA)
200
111
83
(mA)
500
494
488
476
208
201
198
198
103
98
97
97
51
51
49
49
(%)
80
81
82
84
80
83
84
84
81
85
86
86
82
82
85
85
(pF)
24
28
30
33
35
55
63
66
41
75
95
104
45
74
90
112
kHrs
1574
663
338
187
490
343
229
148
318
249
183
127
235
195
152
112
SIP
SIP
SIP
SIP
67
200
111
83
9
FEATURES
12
15
5
67
■ Wide Temperature performance at
200
111
83
full 2 Watt load, –40°C to 85°C
9
■ Dual Output from a Single Input Rail
■ Industry Standard Pinout
■ Power Sharing on Output
■ 1kVDC Isolation
■ Efficiency to 86%
■ Power Density up to 1.44W/cm
■ 5V, 12V, 24V & 48V Input
■ 5V, 9V,12V and 15V Output
■ Footprint from 1.46cm
■ UL 94V-0 Package Material
■ No Heatsink Required
■ Internal SMD Construction
■ Toroidal Magnetics
12
15
5
9
12
15
67
200
111
83
67
3
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
2
Conditions
Continuous operation, 5V input types
Continuous operation, 12V input types 10.8
Continuous operation, 24V input types 21.6
Continuous operation, 48V input types 43.2
5V input types
12V input types
24V input types
48V input types
MIN
4.5
TYP
5
12
24
48
50
70
130
200
MAX Units
5.5
13.2
26.4
Voltage Range
V
52.8
■ Fully Encapsulated
Reflected Ripple Current
mA p-p
■ No External Components Required
■ MTTF up to 2.0 Million hours
■ Custom Solutions Available
OUTPUT CHARACTERISTICS
Parameter
Rated Power2
Output Voltage
Accuracy
Conditions
TA= –40°C to 85°C
NMH0505
MIN
TYP
MAX
2
7.5
5
Units
W
■ No Electrolytic or Tantalum
Capacitors
–5
–5
%
All other types
Line Regulation High VIN to low VIN
10% load to rated load, 5V output types
1.0
5
1.2
10
%/%
DESCRIPTION
The NMH series of industrial temperature
range DC-DC converters are the standard
building blocks for on-board point-of-use
power systems. They are ideally suited for
providing dual rail supplies on single rail
boards with the added benefit of galvanic
isolation to reduce circuit noise. All of the
rated power may be drawn from a single pin
provided the total load does not exceed 2W.
10% load to rated load, 9V output types
10% load to rated load, 12V output types
10% load to rated load, 15V output types
BW=DC to 20MHz, 5V output types
BW=DC to 20MHz, 9V output types
BW=DC to 20MHz, 12V output types
BW=DC to 20MHz, 15V output types
Load Regulation
Ripple & Noise
%
3
10
150
100
80
200
150
150
150
mV p-p
70
ABSOLUTE MAXIMUM RATINGS
3
Short circuit duration
1second
300mW
300°C
7V
15V
28V
Pin compatibility with the NMA 1 watt series
ensures minimal effort in upgrading
distributed power systems.
Internal power dissipation
Lead temperature 1.5mm from case for 10 seconds
Input voltage VIN, NMH05 types
Input voltage VIN, NMH12 types
Input voltage VIN, NMH24 types
Input voltage VIN, NMH48 types
54V
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.
4 Replace suffix “S” with “D” for DIP package style.
All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified.
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