CANDD NKE

NKE SERIES
Isolated Sub-Miniature 1W Single Output DC-DC Converters
SELECTION GUIDE
Nominal
Input
Voltage
Output
Voltage
Output
Current
Input
Current at
Rated Load Efficiency
OrderCode†
(V)
(V)
(mA)
NKE0303S
3.3
3.3
303
400
NKE0305S
3.3
5
200
400
NKE0503S
5
3.3
303
270
75
40
619
NKE0505SE
5
5
200
250
78
34
419
(mA)
Isolation
Capacitance MTTF1
(%)
(pF)
kHrs
75
30
1234
76
35
632
NKE0505S
5
5
200
289
69
28
2414
NKE0509S
5
9
111
266
75
29
1173
633
FEATURES
NKE0512S
5
12
83
260
77
30
NKE0515S
■ New Sub-Miniature SIP & DIP Styles
5
15
66
256
78
32
360
NKE1205S
12
5
200
117
71
35
620
488
■ 3kVDC Isolation
NKE1209S
12
9
111
107
78
50
■ Efficiency to 81%
NKE1212S
12
12
83
105
79
57
360
■ Wide Temperature performance at
full 1 Watt load, –40°C to 85°C
NKE1215S
12
15
66
103
81
60
252
■ Increased Power Density to
1.95W/cm3
† 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.
■ UL 94V-0 Package Material
■ Footprint 0.69cm2
INPUT CHARACTERISTICS
■ Single Isolated Output
Parameter
Conditions
MIN
TYP
MAX
Voltage Range
Continuous operation, 3.3V input types 2.97
Continuous operation, 5V input types
4.5
Continuous operation, 12V input types 10.8
3.3
5.0
12.0
40
3.63
5.5
13.2
V
60 mA p-p
■ Industry Standard Pinout
■ 3.3V, 5V & 12V Input
■ 3.3V, 5V, 9V, 12V and 15V Output
Reflected Ripple Current
Units
■ No Heatsink Required
■ Internal SMD Construction
■ Fully Encapsulated with Toroidal
Magnetics
■ No External Components Required
■ MTTF up to 2.4 Million hours
■ Custom Solutions Available
■ 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.
www.dc-dc.com
OUTPUT CHARACTERISTICS
Parameter
Conditions
Rated Power2
Voltage Set Point
Accuracy
Line regulation
TA = –40°C to 85°C
TYP
MAX
Units
1
W
1.2
15
15
10
9.5
8.5
80
100
90
65
55
%/%
See tolerance envelope
High VIN to low V IN
10% load to rated load, 3.3V output types
10% load to rated load, 5V output types
Load Regulation 3 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
Ripple and Noise BW=DC to 20MHz, 9V output types
BW=DC to 20MHz, 12V output types
BW=DC to 20MHz, 15V output types
1.0
10
12
7.5
6.5
6.0
40
77
43
35
32
%
mV p-p
ABSOLUTE MAXIMUM RATINGS
Short circuit duration 4
Internal power dissipation
Lead temperature 1.5mm from case for 10 seconds
Input voltage V in NKE03 types
Input voltage V in NKE05 types
Input voltage V in NKE12 types
1
2
3
4
1 second
530mW
300°C
5.5V
7V
15V
Calculated using MIL-HDBK-217F with nominal input voltage at full load.
See derating curve.
12V input types have typically 3% less load regulation change.
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.
NKE SERIES
Isolated Sub-Miniature 1W Single Output DC-DC Converters
ISOLATION CHARACTERISTICS
TEMPERATURE CHARACTERISTICS
Parameter
Conditions
MIN
Isolation Test Voltage
Resistance
Flash tested for 1 second
Viso=500VDC
TYP
MAX
Units
3000
Temperature Derating Graph
NKE 0303D/S, 0305D/S,
0503D/S, 0505DE/SE Types
VDC
GΩ
10
GENERAL CHARACTERISTICS
2.0
Parameter
Conditions
MIN
Switching Frequency
All input types
TYP
MAX
Units
115
1.5
kHz
TEMPERATURE CHARACTERISTICS
Parameter
Conditions
MIN
Specification
Storage
Case Temperature
above ambient
All output types
-40
-50
TYP
0505D/S, 1205D/S
All other output types
Free air convection
Cooling
85°C
1.0
MAX
Units
85
130
41
32
°C
°C
0.5
0
°C
-40
0
50
100
150
Ambient Temperature (°C)
Temperature Derating Graph
All other types
PERFORMANCE CHARACTERISTICS
tolerance envelope (3.3V output types)
2.0
tolerance envelope (all other types)
+ 9%
Safe Operating Area
+10%
+1%
VNOM
+1%
-7%
–7%
+5%
1.5
+2.5%
VNOM
–2.5%
85°C
1.0
–7.5%
0.5
–15%
Safe Operating Area
120°C
0
10
25
50
75
Output Load Current (%)
100
10
25
50
75
-40
100
Output Load Cur rent (%)
0
50
100
150
Ambient Temperature (°C)
MECHANICAL DIMENSIONS
4 Pin SIP Package Style
11.48
1.25
4 Pin SIP
PIN
1 GND
2
VIN
3
0V
4
+V
2.18±0.50
NKE0505S
6.00
7.46
XYYWW
0.30
0.20
7.62
4.60
3.60
1
2
3
2.54
8 Pin DIP Package Style
8 Pin DIP
PIN
1 GND
4
VIN
5
+V
7
0V
0.55
0.45
4
0.50±0.05
7.62
11.50
NKE0505D
XYYWW
1.09
1.94
4
1
Weight:1.09g
5.40
9.80
7.62
0.30
0.20
4.60
3.60
7
0.50±0.05
C&D Technologies (NCL) Limited reserve the right to alter or improve the
specification, internal design or manufacturing process at any time, without
notice. Please check with your supplier or visit our web site to ensure that
you have the current and complete specification for your product before use.
© C&D Technologies (NCL) Limited 2001
NDC NKE.5
No part of this publication may be copied, transmitted or stored in a
retrieval system or reproduced in any way including, but not limited to,
photography, photocopy, magnetic or other recording means, without prior
written permission from C&D Technologies (NCL) Limited.
Instructions for use are available from www.dc-dc.com
C&D Technologies (NCL) Ltd
Tanners Drive, Blakelands North
Milton Keynes MK14 5BU, England
Tel: +44 (0)1908 615232
Fax:+44 (0)1908 617545
email: info@cdtechno-ncl.com
www: http://www.dc-dc.com
5
All dimensions in mm XX.XX
±0.25mm. All pins on a
2.54mm pitch and within
±0.25mm of true position.
C&D Technologies (NCL), Inc.
5816 Creedmoor Road, Raleigh
NC 27612, USA
Tel: +1 (919) 571-9405
Fax: +1 (919) 571-9262
email: info@us.cdtechno-ncl.com