NTA SERIES
Isolated 1W Dual Output SM DC-DC Converters
SELECTION GUIDE
Nominal
Input
Voltage
Output
Voltage
Output
Current
Input
Current at
Rated Load Efficiency
Isolation
Capacitance MTTF
1
Order Code
5
NTA0312M
NTA0315M
NTA0505M
NTA0509M
NTA0512M
(V)
3.3
3.3
5
5
5
5
12
12
12
12
(V)
12
15
5
9
12
15
5
9
12
15
(mA)
±42
±33
±100
±55
±42
±33
±100
±55
±42
±33
(mA)
390
392
290
267
260
256
121
113
111
110
(%)
77
77
69
75
77
78
69
74
75
76
(pF)
40
42
33
38
44
43
50
72
89
100
kHrs
375
206
1697
682
343
188
559
375
243
154
FEATURES
■
Wide Temperature Performance at
Full 1Watt Load, -40°C to 85°C
■
Lead Frame Technology
■
CECC00802 Reflow (280°C)
■
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 280°C
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.
NTA0515M
NTA1205M
NTA1209M
NTA1212M
NTA1215M
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
Voltage Range
Reflected Ripple Current
Continuous operation, 3V input types 2.97
Continuous operation, 5V input types
4.5
Continuous operation, 12V input types 10.8
3.3
5
12
41
3.63
5.5
V
13.2
47 mA p-p
OUTPUT CHARACTERISTICS
Parameter
Conditions
MIN
TYP
MAX
Units
Rated Power
2
Voltage Set Point
Accuracy
Line regulation
T
A
= -40°C to 85°C
See tolerance envelope
1.0
10
6.5
6.0
6.0
50
35
50
65
1.0
W
High V
IN
to low V
IN
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, 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
1.2
12
8
8.5
7.0
100
80
110
110
%/%
%
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
, NTA03 types
Input Voltage V
IN
, NTA05 types
Input voltage V
IN
, NTA12 types
1
2
3
4
5
1second
550mW
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.
If components are required in tape and reel format suffix order code with -R, e.g. NTA0505M-R
All specifications typical at T
A
=25°C, nominal input voltage and rated output current unless otherwise specified.
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NTA SERIES
Isolated 1W Dual Output SM DC-DC Converters
ISOLATION CHARACTERISTICS
Parameter
Conditions
MIN
TYP
MAX
Units
Isolation Test Voltage
Resistance
Flash tested for 1 second
Viso=1000VDC
1000
10
VDC
GΩ
GENERAL CHARACTERISTICS
Parameter
Conditions
MIN
TYP
MAX
Units
Switching Frequency
3V input types
5V & 12V input types
100
115
kHz
TEMPERATURE CHARACTERISTICS
Parameter
Conditions
MIN
TYP
MAX
Units
Specification
Storage
Case Temperature
Case Temperature
above ambient
Cooling
All output types
NTA312M, NTA315M
5V output types
All other output types
Free air convection
-40
-55
19
46
35
85
125
°C
°C
°C
PERFORMANCE CHARACTERISTICS
tolerance envelope
+
10%
+5%
V nominal
2.0
+2.5%
-2.5%
Output Power (W)
temperature derating graph
1.5
1.0
0.5
0
Safe Operating Area
85°C
Output Voltage
-7.5%
10
50
Output Load Current (%)
100
-40
0
50
100
Ambient Temperature (°C)
150
MECHANICAL DIMENSIONS
15.24
10.16
18 16 14 12 10
DETAIL A
REFERENCE
PLANE
P
11.20 7.70
10.40
1
NTA0505M
XYYWW
3
5
7
9
0.5
1.50
1.20
10 PINS
0.65 0.2
M
S
0.55
P
2.10
±5.00°
2.54
DETAIL A
S
1.875
MAX
SEATING PLANE
6.60 (6.35)
(5.95) 5.85
0.25
0.10
0.1 S
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
0.30
0.20
2.79MAX
All dimensions in mm XX.XX ±0.25mm. All pins on a 2.54mm pitch.
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
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
Automotive Electronics
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