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

NKA SERIES
Isolated Sub-Miniature 1W Dual Output DC-DC Converters
FEATURES
s New Sub-Miniature SIP & DIP
Package Styles
s 3kVDC Isolation
s Efficiency up to 82%
s Wide Temperature performance at
full 1 Watt load, –40°C to 85°C
s Increased Power Density to
1.35W/cm³
s UL 94V-0 Package Material
s Reduced Footprint at 0.98cm²
s Dual Output from a Single Input Rail
s Industry Standard Pinout
s Power Sharing on Output
s 3.3V, 5V & 12V Input
s 3.3V, 5V, 9V, 12V and 15V Output
s No Heatsink Required
s Internal SMD Construction
s Fully Encapsulated with Toroidal
Magnetics
s No External Components Required
s MTTF up to 1.6 Million hours
s No Electrolytic or Tantalum
Capacitors
DESCRIPTION
The NKA sub-miniature series of industrial
temperature range DC-DC converters are the
standard building blocks for on-boar d
distributed power systems. The series offers
smaller package size, improved efficiency,
lower output ripple and 3kVDC isolation
capability through the use of state of the art
packaging and technology. Ideally suited for
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 1watt.
www.dc-dc.com
SELECTION GUIDE
Nominal
Input Output
Voltage Voltage
Output
Current
Input
Current at
Rated Load Efficiency
Isolation
Capacitance MTTF¹
OrderCode^† (V)
(V)
(mA)
(mA)
(%)
(pF)
kHrs
NKA0303S 3.3
3.3
±163
407
74
20
195
NKA0305S 3.3
5
±100
383
79
22
1121
NKA0312S 3.3
12
±42
390
78
31
375
NKA0315S 3.3
15
±33
384
79
32
206
NKA0503S
5
3.3
±163
259
77
20
205
NKA0505S
5
5
±100
285
70
21
1697
NKA0505SE 5
5
±100
249
80
26
1557
NKA0509S
5
9
±55
263
76
25
682
NKA0512S
5
12
±42
255
78
28
343
NKA0515S
5
15
±33
253
79
29
188
NKA1205S 12
5
±100
112
74
33
559
NKA1209S 12
9
±55
106
79
48
375
NKA1212S 12
12
±42
104
81
55
243
NKA1215S 12
15
±33
102
82
60
154
† For DIP package style replace suffix S with D, eg NKA0312D.
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
Continuous operation, 3.3V input types 2.97 3.3 3.63
Voltage Range
Continuous operation, 5V input types 4.5 5 5.5 V
Continuous operation, 12V input types 10.8 12 13.2
Reflected Ripple Current ^{3.3V input types}
All other types
30
20
60
35
mA p-p
OUTPUT CHARACTERISTICS
Parameter
Conditions
MIN TYP MAX Units
Rated Power²
Voltage Set Point
Accuracy
T_A = -40°C to 120°C
See tolerance envelope
1
W
Line regulation
High V_IN to low V_IN
10% load to rated load, 0312 & 0315
1.0 1.2 %/%
8 14
10% load to rated load, 3.3V output types
10 15
Load Regulation^{3 10% load to rated load, 5V output types}
10% load to rated load, 9V output types
10 12
%
6.5 8
10% load to rated load, 12V output types
6 8.5
10% load to rated load, 15V output types
6
7
BW=DC to 20MHz, 0312 & 0315
25 60
BW=DC to 20MHz, 3.3V output types
40 80
Ripple and Noise ^{BW=DC to 20MHz, 5V output types}
BW=DC to 20MHz, 9V output types
50 75 _{mV p-p}
40 65
BW=DC to 20MHz, 12V output types
40 60
BW=DC to 20MHz, 15V output types
40 60
ABSOLUTE MAXIMUM RATINGS
Short circuit duration ⁴
Internal power dissipation
Lead temperature 1.5mm from case for 10 seconds
Input voltage V_IN, NKA03 types
Input voltage V_IN, NKA05 types
Input voltage V_IN, NKA12 types
1 second
550mW
300°C
5.5V
7V
15V
1 Calculated using MIL-HDBK-217F with nominal input voltage at full load.
2 See derating curve.
3 12V input types have typically 3% less load regulation change.
4 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.