NMA Datasheet, PDF (1/2 Pages) C&D Technologies – Isolated 1W Dual Output DC-DC Converters

NMA 24V & 48V SERIES
Isolated 1W Dual Output DC-DC Converters
SELECTION GUIDE
FEATURES
s Dual Output from a Single Input Rail
s Industry Standard Pinout
s Power Sharing on Output
s 1kVDC Isolation
s Efficiency to 80%
s Power Density 0.85W/cm³
s 24V & 48V Input
s 5V, 9V, 12V and 15V Output
s Footprint from 1.17cm²
s UL 94V-0 Package Material
s No Heatsink Required
s Internal SMD Construction
s Toroidal Magnetics
s Fully Encapsulated
s No External Components Required
s Custom Solutions Available
DESCRIPTION
The NMA series of DC-DC converters are the
standard building blocks for on-boar d
distributed power systems. They are ideally
suited to 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 1 Watt.
Nominal
Input Output Output
Voltage Voltage Current
Order Code (V)
(V)
(mA)
(%)
NMA2405D 24
5
±100
70
MTTF¹
(pF)
kHrs
39
194
NMA2409D 24
9
±55
80
NMA2412D 24
12
±42
80
50
166
DIP
65
134
NMA2415D 24
15
±33
80
95
101
NMA2405S
24
5
±100
70
39
194
NMA2409S
24
9
±55
80
NMA2412S
24
12
±42
80
50
166
SIP
65
134
NMA2415S
24
15
±33
80
95
101
NMA4805D 48
5
±100
70
26
206
NMA4809D 48
9
±55
80
NMA4812D 48
12
±42
80
38
174
DIP
52
139
NMA4815D 48
15
±33
80
56
104
NMA4805S
48
5
±100
70
26
206
NMA4809S
48
9
±55
80
NMA4812S
48
12
±42
80
38
174
SIP
52
139
NMA4815S
48
15
±33
80
56
104
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, 24V input types 21.6 24 26.4}
Continuous operation, 48V input types 43.2 48 52.8
V
OUTPUT CHARACTERISTICS
Parameter
Conditions
MIN
Rated Power² T_A= 0°C to 70°C
Voltage Set
Point Accuracy
See tolerance envelope
Line Regulation High V_IN to low V_IN
10% load to rated load, 5V output types
Load Regulation _{10% load to rated load, all other output types}
Ripple & Noise BW=DC to 20MHz, all input types
TYP MAX Units
1
W
1.2 %/%
15
10
%
150 mV p-p
www.dc-dc.com
ABSOLUTE MAXIMUM RATINGS
Short-circuit duration³
Lead temperature 1.5mm from case for 10 seconds
Input voltage VIN, NMA24 types
Input voltage VIN, NMA48 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 T_A=25°C, nominal input voltage and rated output current unless otherwise specified.