NPH15S Series
www.murata-ps.com
Isolated 15W Single Output DC/DC Converters
SELECTION GUIDE
Order Code1
FEATURES
RoHS compliant
High efficiency to 89%
Power density up to 2.4W/cm3
UL 94V-0 package material
Industry standard pinout
UL 1950 recognized
Non latching current limit
Constant 350kHz frequency
1.5kV input to output isolation
Versatile control options
Continuous rating to 30W at 40ºC without
heatsink
Operation to zero load
Nominal Input
Voltage
V
Output
Voltage
V
Output
Current
A
A (Min.)
24
24
24
24
24
24
24
24
48
48
48
48
48
48
48
48
3.4
3.4
5.1
5.1
12.1
12.1
15.1
15.1
3.4
3.4
5.1
5.1
12.1
12.1
15.1
15.1
4.4
4.4
3.0
3.0
1.3
1.3
1.0
1.0
4.4
4.4
3.0
3.0
1.3
1.3
1.0
1.0
7.5
7.5
5.0
5.0
2.5
2.5
2.0
2.0
7.5
7.5
5.0
5.0
2.5
2.5
2.0
2.0
NPH15S2403EiC
NPH15S2403iC
NPH15S2405EiC
NPH15S2405iC
NPH15S2412EiC
NPH15S2412iC
NPH15S2415EiC
NPH15S2415iC
NPH15S4803EiC
NPH15S4803iC
NPH15S4805EiC
NPH15S4805iC
NPH15S4812EiC
NPH15S4812iC
NPH15S4815EiC
NPH15S4815iC
Efficiency
MTTF2
A (Max.)
%
kHrs
11.0
11.0
7.5
7.5
3.7
3.7
3.0
3.0
11.0
11.0
7.5
7.5
3.7
3.7
3.0
3.0
81
81
84
84
86
86
87
87
83
83
85
85
88
88
89
89
335
335
286
286
286
286
281
281
295
295
301
301
302
302
296
296
Current Limit
INPUT CHARACTERISTICS
Parameter
Conditions
Voltage range
Continuous operation, 24V input types
Continuous operation, 48V input types
Min.
Typ.
Max.
Units
18
36
24
48
36
75
V
Min.
Typ.
Protected against load faults
OUTPUT CHARACTERISTICS
Internal over temperature protection
Parameter
Conditions
Max.
Units
Uses no electrolytic capacitors
Voltage set point error
50% load
0.5
%
Overall voltage error
Case temperature -40ºC to 110ºC
Load 0% - 100%
Input specified range
2.5
%
250
ppmºC
1
%
0.1
0.5
%
%
mV
Max.
Units
DESCRIPTION
The NPH15S 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, and a high surge capability will provide
for start-up and transient loads, whilst being
thermally protected against sustained overload.
Overload protection of the “constant current” type
ensures start-up into complex load conditions. 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 E151252
applies.
Temperature coefficient
of output voltage (slope)
Deviation of output
voltage
Temperature MIN-MAX
Line regulation
Load Regulation
Ripple
Operating voltage range, 50% load
0% - 100% rated load
rms
0.5
70
ISOLATION CHARACTERISTICS
Parameter
Conditions
Min.
Isolation test voltage
Resistance
1500
1
Flash tested for 1 second
VISO = 500VDC
Typ.
VDC
GΩ
ABSOLUTE MAXIMUM RATINGS
Input voltage, 24V input types
Input voltage, 48V input types
Output voltage
Output trim control
Synchronisation/shutdown control
-0.5V to 40V 3
-0.5V to 80V 3
-0.3V to regulated voltage
-1V to +30V
±15V relative to input return
For full details go to
www.murata-ps.com/rohs
1. Parts ending with EiC have optional TRIM and SS pins fitted.
2. Calculated using MIL-HDBK-217F with nominal input voltage at full load.
3. Absolute maximum value for 30 seconds. Prolonged operation may damage the product.
All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified.
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KDC_NPH15S.F05 Page 1 of 8
