NPH10S SERIES
Isolated 10W Single Output DC-DC Converters
SELECTION GUIDE
Nominal
Input Voltage
Output
Voltage
Output
Current
Current
Max Load
2
Limit (Typ) Efficiency Capacitance
1
Order Code
(V)
24
24
24
24
48
48
48
48
(V)
3.4
5.1
12.1
15.1
3.4
5.1
12.1
15.1
(A)
(A)
4.5
3.0
1.2
1.1
4.1
2.8
1.2
1.0
(%)
79
83
86
86
80
83
86
87
(µF)
470
470
100
47
470
470
56
NPH10S2403i
NPH10S2405i
NPH10S2412i
NPH10S2415i
NPH10S4803i
NPH10S4805i
NPH10S4812i
NPH10S4815i
2.94
1.96
0.83
0.67
2.94
1.96
0.83
0.67
22
FEATURES
INPUT CHARACTERISTICS
Parameter
Conditions
MIN
18
36
NOM
MAX
36
75
Units
■ High Efficiency to 86%
■ Power Density up to 1.5kW/L
Continuous operation, 24V input types
Continuous operation, 48V input types3
24
48
V
V
Voltage Range
3
(24W/in )
■ 1.5kV Input to Output Isolation
■ Industry Standard Pinout
■ Surge Rating to 12W
■ Non Latching Current Limit
■ Fixed Frequency
OUTPUT CHARACTERISTICS
Parameter
Conditions
MIN
TYP
MAX
Units
Voltage Set
Point Error
50% load after 30 mins at nominal
0.5
%
supply voltage
Case temperature –40°C to 110°C
Load 0% - 100%
Overall
1
2.5
%
Voltage Error
Input specified range
■ Versatile Control Options
Temperature Coefficient
of Output Voltage
(slope)
Over any 10°C span within the
specified temperature range
50
250 ppm°C
■ Continuous Rating to 10W at 72°C
Without Heatsink
Deviation of
Specified over temperature MIN-MAX
Operating voltage range, 50% load
0% - 100% rated load
0.5
1
%
Output Voltage
■ Operation to Zero Load
Line Regulation
Load Regulation
Ripple
0.05
0.1
0.5
%
%
mV
■ Protected Against Load Faults
■ Internal Over Temperature Protection
■ Uses No Electrolytic Capacitors
■ UL 94V-0 Package Materials
4
rms
70
CONTROL CHARACTERISTICS
Parameter
Conditions
MIN
TYP
MAX
Units
Voltage Trimming
At rated load,
10
%
DESCRIPTION
Range
Trim control at either output
5
Remote Switch Input
(voltage relative
Not operating
-15
9
0
1.5
11
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.
V
to input negative)
Operating, open circuit voltage
10
Time from application of valid input
Start Delay
25
mS
voltage to output being in specification
5
Synchronisation
Specified drive signal
320
330
440
395
kHz
kHz
Switching Frequency
350
ABSOLUTE MAXIMUM RATINGS
6
6
Input voltage, 24V input types
Input voltage, 48V input types
Output Voltage
Output trim control
Synchronisation/shutdown control
–0.5V to 40V
–0.5V to 80V
–0.3V to controlled output voltage (operating or non-operating)
–1V to +30V
15V relative to input return
ISOLATION CHARACTERISTICS
Parameter
Conditions
MIN
1500
1
TYP
MAX Units
VDC
Isolation Voltage
Resistance
Flash tested for 1 second
Viso=500VDC
GΩ
3.3V and 5V output
12V and 15V output
50
90
Capacitance
pF
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.
www.cdpoweronline.com
All specifications typical at T =25°C, nominal input voltage and rated output current unless otherwise specified.
A
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