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NTA SERIES
Isolated 1W Dual Output SM DC-DC Converters
SELECTION GUIDE
FEATURES
Wide Temperature Performance at
Full 1Watt Load, -40C to 85C
Lead Frame Technology
CECC00802 Reflow (280C)
Dual Isolated Output
1kVDC Isolation
Efficiency to 78%
Power Density 1.36W/cm
3
5V & 12V Input
5V, 9V, 12V and 15V Output
Footprint Over Pins 1.64cm
2
UL 94V-0 Package Material
No Heatsink Required
Internal SMD Construction
Toroidal Magnetics
Plastic Encapsulated
MTTF up to 2.1 Million Hours
Custom Solutions Available
Multi Layer Ceramic Capacitors
Lead Free Compatible
DESCRIPTION
The NTA series of miniature surface mounted
DC-DC Converters employ leadframe
technology and transfer moulding techniques
to bring all of the benefits of IC style
packaging to hybrid circuitry. The devices are
fully compatible with CECC00802 to 280C
which allows them to be placed and reflowed
with IC's, thus reducing time and cost in
production. Co-planarity of the lead positions
is based upon IEC 191-6:1990. The devices
are suitable for all applications where high
volume production is envisaged.
Nominal
Input
Input
Output
Output
Current at
Isolation
Voltage
Voltage
Current
Rated Load Efficiency
Capacitance MTTF
1
Order Code
5
(V)
(V)
(mA)
(mA)
(%)
(pF)
kHrs
NTA0312M
3.3
12
42
390
77
40
375
NTA0315M
3.3
15
33
392
77
42
206
NTA0505M
5
5
100
290
69
33
1697
NTA0509M
5
9
55
267
75
38
682
NTA0512M
5
12
42
260
77
44
343
NTA0515M
5
15
33
256
78
43
188
NTA1205M
12
5
100
121
69
50
559
NTA1209M
12
9
55
113
74
72
375
NTA1212M
12
12
42
111
75
89
243
NTA1215M
12
15
33
110
76
100
154
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.
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.
5 If components are required in tape and reel format suffix order code with -R, e.g. NTA0505M-R
All specifications typical at T
A
=25C, nominal input voltage and rated output current unless otherwise specified.
Parameter
Conditions
MIN
TYP
MAX
Units
Continuous operation, 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
41
47
mA p-p
Short circuit duration
4
1second
Internal power dissipation
550mW
Lead temperature 1.5mm from case for 10 seconds
300C
Input Voltage V
IN
, NTA03 types
5.5V
Input Voltage V
IN
, NTA05 types
7V
Input voltage V
IN
, NTA12 types
15V
INPUT CHARACTERISTICS
ABSOLUTE MAXIMUM RATINGS
Parameter
Conditions
MIN
TYP
MAX
Units
Rated Power
2
T
A
= -40C to 85C
1.0
W
Voltage Set Point
Accuracy
See tolerance envelope
Line regulation
High V
IN
to low V
IN
1.0
1.2
%/%
Load Regulation
3
10% load to rated load, 5V output types
10
12
%
10% load to rated load, 9V output types
6.5
8
10% load to rated load, 12V output types
6.0
8.5
10% load to rated load, 15V output types
6.0
7.0
Ripple and Noise
BW=DC to 20MHz, 5V output types
50
100
mV p-p
BW=DC to 20MHz, 9V output types
35
80
BW=DC to 20MHz, 12V output types
50
110
BW=DC to 20MHz, 15V output types
65
110
OUTPUT CHARACTERISTICS
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.cdpoweronline.com
C&D Technologies Inc.
3400 E Britannia Drive, Tucson,
Arizona 85706, USA
Tel: +1 (800) 547-2537
Fax: +1 (520) 741-4598
email: sales@cdtechno.com
NTA SERIES
Isolated 1W Dual Output SM DC-DC Converters
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 2003
NDC NTA.3
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.cdpoweronline.com
ISOLATION CHARACTERISTICS
GENERAL CHARACTERISTICS
TEMPERATURE CHARACTERISTICS
PERFORMANCE CHARACTERISTICS
Parameter
Conditions
MIN
TYP
MAX
Units
Isolation Test Voltage
Flash tested for 1 second
1000
VDC
Resistance
Viso=1000VDC
10
G
Parameter
Conditions
MIN
TYP
MAX
Units
Switching Frequency
3V input types
100
kHz
5V & 12V input types
115
Parameter
Conditions
MIN
TYP
MAX
Units
Specification
All output types
-40
85
C
Storage
-55
125
C
Case Temperature
NTA312M, NTA315M
19
Case Temperature
5V output types
46
C
above ambient
All other output types
35
Cooling
Free air convection
tolerance envelope
+
10%
+5%
V nominal
temperature derating graph
2.0
1.5
1.0
0.5
0
+2.5%
-2.5%
-7.5%
Output V
oltage
Output Power (W)
MECHANICAL DIMENSIONS
10
50
100
Output Load Current (%)
-40
0
50
100
150
Ambient Temperature (C)
85C
Safe Operating Area
PIN
1
GND
3
V
IN
5
NA
7
0V
9
-V
10
NA
12
+V
14
NA
16
NA
18
NA
Weight: 1.53g
All dimensions in mm XX.XX 0.25mm. All pins on a 2.54mm pitch.
15.24
10.16
11.20
10.40
6.60
(5.95)
(6.35)
5.85
0.65
0.55
0.30
0.20
1.875
MAX
DETAIL A
DETAIL A
1.50
1.20
7.70
2.54
2.10
0.5
REFERENCE
PLANE
5.00
0.25
0.10
2.79MAX
1
3
5
7
9
10
12
14
16
18
0.1S
0.2
M
P
S
P
NTA0505M
XYYWW
10 PINS
SEATING PLANE
S
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