NPH10S SERIES
Isolated 10W Single Output DC-DC Converters
www.cdpoweronline.com
SELECTION GUIDE
FEATURES
High Efficiency to 86%
Power Density up to 1.5kW/L
(24W/in
3
)
1.5kV Input to Output Isolation
Industry Standard Pinout
Surge Rating to 12W
Non Latching Current Limit
Fixed Frequency
Versatile Control Options
Continuous Rating to 10W at 72C
Without Heatsink
Operation to Zero Load
Protected Against Load Faults
Internal Over Temperature Protection
Uses No Electrolytic Capacitors
UL 94V-0 Package Materials
DESCRIPTION
The NPH10S series of DC-DC Converters
combines ease of application with versatility.
The pin pattern is based on the popular
industry standard, but two additional pins
may optionally be fitted to provide a variety
of features not commonly found on units of
this type. High efficiency enables full rating
to be achieved in a small package without
heatsinking. Thermally protected against
sustained overload. The copper case
achieves efficient heat transfer and screening.
The product range has been recognised by
Underwriters Laboratory (UL) to UL 1950 for
operational insulation, file number E179522
applies.
Nominal
Output
Output
Current
Load
Input Voltage
Voltage
Current
Limit
2
Efficiency Capacitance
Order Code
1
(V)
(V)
(A)
(A)Min
(%)
(F Max)
NPH10S2403i
24
3.4
2.94
4.5
79
470
NPH10S2405i
24
5.1
1.96
3.0
83
470
NPH10S2412i
24
12.1
0.83
1.2
86
100
NPH10S2415i
24
15.1
0.67
1.1
86
47
NPH10S4803i
48
3.4
2.94
4.1
80
470
NPH10S4805i
48
5.1
1.96
2.8
83
470
NPH10S4812i
48
12.1
0.83
1.2
86
56
NPH10S4815i
48
15.1
0.67
1.0
87
22
Parameter
Conditions
MIN
NOM
MAX
Units
Voltage Range
Continuous operation, 24V input types
18
24
36
V
Continuous operation, 48V input types
3
36
48
75
V
Parameter
Conditions
MIN
TYP
MAX
Units
Voltage Set
50% load after 30 mins at nominal
0.5
%
Point Error
supply voltage
Overall
Case temperature 40C to 110C
Voltage Error
Load 0% - 100%
1
2.5
%
Input specified range
Temperature Coefficient Over any 10C span within the
of Output Voltage
specified temperature range
50
250
ppmC
(slope)
Deviation of
Output Voltage
Specified over temperature MIN-MAX
0.5
1
%
Line Regulation
Operating voltage range, 50% load
0.05
0.1
%
Load Regulation
0% - 100% rated load
4
0.5
%
Ripple
rms
70
mV
Input voltage, 24V input types
0.5V to 40V
6
Input voltage, 48V input types
0.5V to 80V
6
Output Voltage
0.3V to controlled output voltage
(operating or non-operating)
Output trim control
1V to +30V
Synchronisation/shutdown control
15V relative to input return
INPUT CHARACTERISTICS
OUTPUT CHARACTERISTICS
Parameter
Conditions
MIN
TYP
MAX
Units
Voltage Trimming
At rated load,
10
%
Range
Trim control at either output
Remote Switch Input
5
Not operating
-15
0
1.5
V
(voltage relative
to input negative)
Operating, open circuit voltage
9
10
11
Start Delay
Time from application of valid input
voltage to output being in specification
25
mS
Synchronisation
5
Specified drive signal
320
440
kHz
Switching Frequency
330
350
395
kHz
CONTROL CHARACTERISTICS
ABSOLUTE MAXIMUM RATINGS
ISOLATION CHARACTERISTICS
Parameter
Conditions
MIN
TYP
MAX
Units
Isolation Voltage
Flash tested for 1 second
1500
VDC
Resistance
Viso=500VDC
1
G
Capacitance
3.3V and 5V output
50
pF
12V and 15V output
90
1 If optional pins ADJ and SS are required (as indicated in the pin connections diagram) prefix the ending "i" with
an E when ordering, e.g. NPH10S4803Ei.
2 Current is quoted when output is 95% of regulated voltage.
3 For applications requiring UL1950 recognition, input voltage must not exceed 60VDC.
4 A minimum load of 10% of rating is recommended for typical applications ; see application notes.
5 Optional - Where fitted.
6 Absolute maximum value for 30 seconds. Prolonged operation may damage the product.
All specifications typical at TA=25C, nominal input voltage and rated output current unless otherwise specified.
NPH10S SERIES
Isolated 10W Single Output DC-DC Converters
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
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.
For information and instructions on use, please consult the NPH SERIES
APPLICATION NOTES.
C&D Technologies (NCL) Limited 2003
NDC NPH10S.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.cdpoweronline.com
ENVIRONMENTAL
Parameter
Conditions
MIN
TYP
MAX
Units
Case Temperature Full load
40
110
C
Storage
Absolute MAX internal temperature
40
125
C
Relative Humidity Non condensing 85C
85
%
Thermal Protection Operates at case temperature
110
C
Weight: 22g
All dimensions in Inches (mm) 0.01 (0.25)
All pins on a 0.10 (2.54) pitch and within 0.01 (0.25) of true position
* Optional pins
Case connected internally to 0V pin
0.8
20.32
0.98
25.00
0.80 (20.32)
0.39 (10.00)
1.78 (4.50)
0.15 (3.70)
0.39 (9.96)
0.23
(5.84)
0.2 (5.08)
THERMAL CHARACTERISTICS
THERMAL PERFORMANCE
MAX power rating with case temperature maintained by external means
(eg forced air cooling)
Case Temperature
Part Number
100C
105C
110C
Units
NPH10S2403
10
7.0
2.3
NPH10S2405
10
8.2
3
NPH10S2412
10
9.5
4
W
NPH10S2415
12
9.5
4
NPH10S4803
10
7.0
1
NPH10S4805
10
4.7
1
NPH10S4812
12
8.0
0
W
NPH10S4815
12
7.5
0
MECHANICAL DIMENSIONS
15
10
5
0
-40
-20
0
20
40
60
80
100 120
Ambient Temperature (C)
2412
2415
2405
2403
Output Power (W)
15
10
5
0
-40
-20
0
20
40
60
80
100 120
Ambient Temperature (C)
Output Power (W)
4815
4812
4805
4803
SS
+V
IN
-V
IN
+V
OUT
ADJ
0V
0.2 (5.08)
BOTTOM VIEW
0.09 (2.34)
0.2(5.08)
0.04 (1.04)
0.04 (0.90)
1.26
(32.00)
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