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NKE0503S Schematic ( PDF Datasheet ) - C&D Technologies

Teilenummer NKE0503S
Beschreibung Isolated Sub-Miniature 1W Single Output DC-DC Converters
Hersteller C&D Technologies
Logo C&D Technologies Logo 




Gesamt 2 Seiten
NKE0503S Datasheet, Funktion
www.DataSheet4U.com
NKE SERIES
Isolated Sub-Miniature 1W Single Output DC-DC Converters
FEATURES
s New Sub-Miniature SIP & DIP Styles
s 3kVDC Isolation
s Efficiency to 81%
s Wide Temperature performance at
full 1 Watt load, –40°C to 85°C
s Increased Power Density to
1.95W/cm3
s UL 94V-0 Package Material
s Footprint 0.69cm2
s Single Isolated Output
s Industry Standard Pinout
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 2.4 Million hours
s Custom Solutions Available
s No Electrolytic or Tantalum
Capacitors
DESCRIPTION
The NKE sub-miniature series of DC-DC
Converters is particularly suited to isolating
and/or converting DC power rails. A smaller
package size, improved efficiency, lower
output ripple and 3kVDC isolation capability
through state of the art packaging and
improved technology. The galvanic isolation
allows the device to be configured to provide
an isolated negative rail in systems where
only positive rails exist. The wide temperature
range guarantees startup from –40°C and full
1 watt output at 85°C.
SELECTION GUIDE
Nominal
Input Output
Voltage Voltage
OrderCode(V)
(V)
Output
Current
(mA)
Input
Current at
Rated Load Efficiency
(mA)
(%)
Isolation
Capacitance MTTF1
(pF) kHrs
NKE0303S 3.3
3.3
303
400
75
30 1234
NKE0305S 3.3
5
200
400
76
35 632
NKE0503S
5
3.3 303
270
75
40 619
NKE0505SE
5
5 200 250 78
34 419
NKE0505S
5
5 200 289 69
28 2414
NKE0509S
5
9 111 266 75
29 1173
NKE0512S
5
12
83
260 77
30 633
NKE0515S
5
15
66
256 78
32 360
NKE1205S
12
5
200
117
71
35 620
NKE1209S
12
9
111
107
78
50 488
NKE1212S
12
12
83
105 79
57 360
NKE1215S
12
15
66
103 81
60 252
† For DIP package style replace suffix S with D, eg NKE0303D.
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
Continuous operation, 3.3V input types 2.97
Voltage Range
Continuous operation, 5V input types 4.5
Continuous operation, 12V input types 10.8
Reflected Ripple Current
TYP
3.3
5.0
12.0
40
MAX
3.63
5.5
13.2
60
Units
V
mA p-p
OUTPUT CHARACTERISTICS
Parameter
Rated Power2
Voltage Set Point
Accuracy
Line regulation
Load Regulation3
Ripple and Noise
Conditions
TA = –40°C to 85°C
See tolerance envelope
High VIN to low VIN
10% load to rated load, 3.3V output types
10% load to rated load, 5V output types
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, 3.3V 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
TYP MAX Units
1W
1.0 1.2 %/%
10 15
12 15
7.5 10 %
6.5 9.5
6.0 8.5
40 80
77 100
43 90 mV p-p
35 65
32 55
ABSOLUTE MAXIMUM RATINGS
Short circuit duration 4
Internal power dissipation
Lead temperature 1.5mm from case for 10 seconds
Input voltage Vin NKE03 types
Input voltage Vin NKE05 types
Input voltage Vin NKE12 types
1 second
530mW
300°C
5.5V
7V
15V
www.dc-dc.com
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 TA=25°C, nominal input voltage and rated output current unless otherwise specified.
DataSheet4 U .com





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