NDY SERIES
Isolated 3W Wide Input DC-DC Converters
SELECTION GUIDE
Input
Nominal Rated
Input Output
Voltage Voltage Min Load
1
Output Current
Current
Full Load
(mA)
615
563
548
533
362
320
316
308
174
156
154
150
87
3
Full Load
(mA)
MTTF
Order Code
NDY0505
NDY0509
NDY0512
NDY0515
NDY1205
NDY1209
NDY1212
NDY1215
NDY2405
NDY2409
NDY2412
NDY2415
NDY4805
NDY4809
NDY4812
NDY4815
(V)
5
(V)
5
(mA)
(%)
66
72
71
73
71
78
78
79
70
78
80
82
73
80
81
81
(pF)
40
52
kHrs
1939
1926
100 -150 400- 600
5
5
5
9
55-83
42-62
33-50
150
83
62
50
150
83
62
50
150
83
62
50
222-333
166-250
133-200
600
333
250
200
600
333
250
12
15
5
43 1907
44 1924
36 1928
52 1916
44 1897
47 1914
36 1673
52 1663
44 1644
54
35
52
44
12
12
12
12
24
24
24
24
48
48
48
48
9
FEATURES
12
15
5
■ Industry Standard Footprint
■ Single Isolated Output
■ Short Circuit Protection
9
12
15
5
9
12
15
200
600
333
250
1657
1668
1663
1648
■ Operating Temperature Range
-40°C to +85°C
78
77
76
■ Low Profile 24 Pin Case
■ Efficiency to 83%
■ Power Density 0.90W/cm
200
53 1661
3
■ 2:1 Wide Input Range
INPUT CHARACTERISTICS
■ 5V, 12V, 24V & 48V Input
■ 5V, 9V, 12V & 15V Output
■ Footprint 4.73cm
■ UL 94V-0 Package Materials
■ No Heatsink Required
■ Internal SMD Construction
■ Fully Encapsulated
Parameter
Conditions
MIN
4.5
9
18
36
TYP
MAX
Units
All NDY05 Types
All NDY12 Types
All NDY24 Types
All NDY48 Types
All NDY05 types when 100µF at input
All NDY12 types when 100µF at input
All NDY24 types when 10µF at input
All NDY48 types when 10µF at input
5
12
24
48
400
150
290
100
9
18
36
72
500
170
360
127
2
Voltage Range
VDC
Reflected
Ripple
Current
mA p-p
DESCRIPTION
OUTPUT CHARACTERISTICS
The NDY series is a range of low profile
DC-DC converters offering a single regulated
output over a 2:1 input voltage range. All
parts deliver 3W output power up to 85°C
without heatsinking, except the 4.5V to 9V
input voltage range which should be derated
to 2W at the lower input voltage. A flyback
oscillator design with isolated feedback is
used to give regulation over the full operating
range of 25% to 100% of full load. It is
strongly recommended that external
capacitors be used on input and output to
guarantee performance over full load and
input voltage range (see recommended test
circuit for values). The plastic case and
encapsulant materials are rated to UL 94V-0
and the connection pins are formed from a
tin plated alloy 42 leadframe.
Parameter
Conditions
With external input/output capacitors,
MIN
TYP
MAX
Units
Voltage Set
1
5
%
Point Accuracy refer to recommended test circuit
Low line to high line,
Line Regulation with external input/output capacitors,
refer to to recommended test circuit
25% load to 100% load,
Load Regulation with external input/output capacitors,
refer to to recommended test circuit
0.05
0.2
5
0.5
0.5
10
%
%
BW = 20Hz to 300kHz
Ripple
Noise
With external input/output capacitors,
refer to to recommended test circuit
mV rms
mV p-p
BW = DC to 100MHz
With external input/output capacitors,
refer to to recommended test circuit
50
100
ABSOLUTE MAXIMUM RATINGS
Short-circuit protection
Input voltage 05 types
Input voltage 12 types
continuous
10V
20V
Input voltage 24 types
40V
Input voltage 48 types
80V
Lead temperature 1.5mm from case for 10 seconds
300°C
1 Refer to power derating graph
2 Measured at full load with external input/output capacitors
3 Calculated using MIL-HDBK-217F with nominal input voltage at full load.
All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified.
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