CANDD NMA4812S Isolated 1w dual output dc-dc converter Datasheet

NMA 24V & 48V SERIES
Isolated 1W Dual Output DC-DC Converters
SELECTION GUIDE
Nominal
Input
Voltage
Output
Voltage
Order Code
(V)
(V)
(mA)
(%)
(pF)
kHrs
NMA2405D
24
5
±100
70
39
194
NMA2409D
24
9
±55
80
50
166
NMA2412D
24
12
±42
80
65
134
NMA2415D
24
15
±33
80
95
101
■ Dual Output from a Single Input Rail
NMA2405S
24
5
±100
70
39
194
■ Industry Standard Pinout
NMA2409S
24
9
±55
80
50
166
■ Power Sharing on Output
NMA2412S
24
12
±42
80
65
134
NMA2415S
24
15
±33
80
95
101
■ Power Density 0.85W/cm 3
NMA4805D
48
5
±100
70
26
206
■ 24V & 48V Input
NMA4809D
48
9
±55
80
38
174
NMA4812D
48
12
±42
80
52
139
NMA4815D
48
15
±33
80
56
104
■ No Heatsink Required
NMA4805S
48
5
±100
70
26
206
■ Internal SMD Construction
NMA4809S
48
9
±55
80
38
174
NMA4812S
48
12
±42
80
52
139
■ No External Components Required
NMA4815S
48
15
±33
80
56
104
■ Custom Solutions Available
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.
FEATURES
■ 1kVDC Isolation
■ Efficiency to 80%
■ 5V, 9V, 12V and 15V Output
■ Footprint from 1.17cm 2
■ UL 94V-0 Package Material
■ Toroidal Magnetics
■ Fully Encapsulated
Output
Current
MTTF1
DIP
SIP
DIP
SIP
DESCRIPTION
The NMA series of DC-DC converters are the
standard building blocks for on-boar d
distributed power systems. They are ideally
suited to 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 1 Watt.
INPUT CHARACTERISTICS
Parameter
Conditions
MIN
TYP
MAX
Units
Voltage Range
Continuous operation, 24V input types
Continuous operation, 48V input types
21.6
43.2
24
48
26.4
52.8
V
MIN
TYP
MAX
Units
1
W
1.2
15
10
150
%/%
OUTPUT CHARACTERISTICS
Parameter
Conditions
Rated Power2
Voltage Set
Point Accuracy
Line Regulation
TA= 0°C to 70°C
See tolerance envelope
High V IN to low V IN
10% load to rated load, 5V output types
Load Regulation
10% load to rated load, all other output types
Ripple & Noise BW=DC to 20MHz, all input types
%
mV p-p
ABSOLUTE MAXIMUM RATINGS
Short-circuit duration 3
Lead temperature 1.5mm from case for 10 seconds
Input voltage V IN , NMA24 types
Input voltage V IN , NMA48 types
www.dc-dc.com
1 second
300°C
28V
54V
1 Calculated using MIL-HDBK-217F with nominal input voltage at full load.
2 See derating curve
3 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.
NMA 24V & 48V SERIES
Isolated 1W Dual Output DC-DC Converters
ISOLATION CHARACTERISTICS
PIN CONNECTIONS
Parameter
Conditions
MIN
Isolation Test Voltage
Resistance
Flash tested for 1 second
Viso=500VDC
TYP
MAX
Units
1000
1
14 Pin DIP
PIN
1 GND
7
NC
8
0V
9
+V
11
–V
14
VIN
VDC
GΩ
GENERAL CHARACTERISTICS
Parameter
Conditions
Switching Frequency
All input types
MIN
TYP
MAX
Units
100
kHz
7 Pin SIP
PIN
1
VIN
2 GND
4
–V
5
0V
6
+V
TEMPERATURE CHARACTERISTICS
Parameter
Conditions
MIN
Specification
Storage
Cooling
All output types
0
–55
TYP
MAX
Units
70
150
°C
°C
Free air convection
PERFORMANCE CHARACTERISTICS
tolerance envelope
2.0
+10%
+5%
+2.5%
V nominal
temperature derating graph
1.5
-2.5%
1.0
-7.5%
Safe Operating Area
0.5
10
50
Output Load Current (%)
0
100
–50
0
50 70 100 125 150
Ambient Temperature (°C)
MECHANICAL DIMENSIONS
14 Pin DIP
19.50
Weight: 2.3g (24V)
2.13
NMA2405D
2.9g (48V)
9.80
7
7.62
14
4.60
3.60
0.55
0.45
Weight: 2.3g (24V)
2.9g (48V)
1.09
1
6.80*
XYYWW
11
9
NMA2405S
10.0
0.30
0.20
1.25
XYYWW
12.70
* 7.70 for 48V variants
**7.50 for 48V variants
4.60
3.60
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) 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 NMA2.3
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.dc-dc.com
1 2
0.30
0.20
0.55
0.45
2.00
6.00**
8
2.54
19.50
7 Pin SIP
15.24
4
5
6
0.55
0.45
2.54
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: [email protected]
www: http://www.dc-dc.com
C&D Technologies (NCL), Inc.
5816 Creedmoor Road, Raleigh
NC 27612, USA
Tel: +1 (919) 571-9405
Fax: +1 (919) 571-9262
email: [email protected]
Similar pages