NME 24V & 48V SERIES
Isolated 1W Single Output DC-DC Converters
SELECTION GUIDE
Nominal
Input
Voltage Voltage
Output
Output
Current
1
MTTF
Order Code
(V)
(V)
(mA)
(%)
70
(pF)
40
kHrs
NME2405D
24
5
200
201
185
163
136
201
185
163
136
213
194
164
140
213
194
164
140
NME2409D
NME2412D
NME2415D
NME2405S
NME2409S
NME2412S
NME2415S
NME4805D
NME4809D
NME4812D
NME4815D
NME4805S
NME4809S
NME4812S
NME4815S
24
24
24
24
24
24
24
48
48
48
48
48
48
48
48
9
12
15
5
111
83
75
80
80
70
75
80
80
70
75
80
80
70
75
80
80
59
78
79
40
59
78
79
32
50
76
75
32
50
76
75
DIP
SIP
DIP
SIP
66
FEATURES
200
111
83
■ Single Isolated Output
■ Industry Standard Pinout
■ 1kVDC Isolation
■ Efficiency to 80%
■ Power Density 1.45W/cm
■ 24V & 48V Input
■ 5V, 9V, 12V and 15V Output
■ Footprint from 0.69cm
■ UL 94V-0 Package Material
■ No Heatsink Required
■ Internal SMD Construction
■ Toroidal Magnetics
9
12
15
5
66
3
200
111
83
9
12
15
5
2
66
200
111
83
9
12
15
■ Fully Encapsulated
66
■ No External Components Required
■ Custom Solutions Available
■ Pin Compatible with LME
■ SIP & DIP Package Styles
i When operated without additional external load capacitance, the output voltage of the devices is guaranteed
to be within 95% of its steady state value within 100ms after the input voltage has reached 95% of its steady
state value, irrespective of the rise time of the input voltage.
ii 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
DESCRIPTION
Parameter
Conditions
MIN
21.6
43.2
TYP
24
48
MAX
26.4
52.8
Units
The NME Series of DC-DC Converters is
particularly suited to isolating and/or
converting DC power rails. The galvanic
isolation allows the device to be configured
to provide an isolated negative rail in systems
where only positive rails exist.
Continuous operation, 24V input types
Continuous operation, 48V input types
Voltage Range
V
OUTPUT CHARACTERISTICS
Parameter
Rated Power
Voltage Set
Conditions
TA= 0°C to 70°C
MIN
TYP
MAX
Units
2
1
W
See tolerance envelope
Point Accuracy
Line Regulation High VIN to low VIN
10% load to rated load, 5V output types
1.2
15
10
%/%
%
Load Regulation
10% load to rated load, all other output types
Ripple & Noise BW=DC to 20MHz, all input types
150
mV p-p
ABSOLUTE MAXIMUM RATINGS
Short-circuit duration3
Lead temperature 1.5mm from case for 10 seconds
Input voltage VIN, NME24 types
Input voltage VIN, NME48 types
1 second
300°C
28V
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.
All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified.
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