NPH10S Datasheet, PDF (1/2 Pages) C&D Technologies – Isolated 10W Single Output DC/DC Converters

NPH10S SERIES
Isolated 10W Single Output DC-DC Converters
FEATURES
■ High Efficiency to 86%
■ Power Density up to 1.5kW/L
(24W/in³ )
■ 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 72°C
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.
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SELECTION GUIDE
Order Code¹
NPH10S2403i
NPH10S2405i
NPH10S2412i
NPH10S2415i
NPH10S4803i
NPH10S4805i
NPH10S4812i
NPH10S4815i
Nominal
Input Voltage
(V)
24
24
24
24
48
48
48
48
Output
Voltage
(V)
3.4
5.1
12.1
15.1
3.4
5.1
12.1
15.1
Output
Current
(A)
2.94
1.96
0.83
0.67
2.94
1.96
0.83
0.67
Current
Limit² (Typ)
(A)
4.5
3.0
1.2
1.1
4.1
2.8
1.2
1.0
Efficiency
(%)
79
83
86
86
80
83
86
87
Max Load
Capacitance
(µF)
470
470
100
47
470
470
56
22
INPUT CHARACTERISTICS
Parameter
Conditions
MIN NOM MAX Units
Voltage Range ^{Continuous operation, 24V input types}
18
24
36
V
Continuous operation, 48V input types³ 36
48
75
V
OUTPUT CHARACTERISTICS
Parameter
Conditions
MIN
Voltage Set
Point Error
50% load after 30 mins at nominal
supply voltage
Overall
Voltage Error
Case temperature –40°C to 110°C
Load 0% - 100%
Input specified range
Temperature Coefficient
of Output Voltage
(slope)
Over any 10°C span within the
specified temperature range
Deviation of
Output Voltage
Specified over temperature MIN-MAX
Line Regulation
Operating voltage range, 50% load
Load Regulation
0% - 100% rated load⁴
Ripple
rms
TYP
1
50
0.5
0.05
70
MAX
0.5
Units
%
2.5
%
250 ppm°C
1
%
0.1
%
0.5
%
mV
CONTROL CHARACTERISTICS
Parameter
Conditions
MIN TYP MAX Units
Voltage Trimming
Range
At rated load,
Trim control at either output
±10
%
Remote Switch Input⁵ Not operating
(voltage relative
to input negative)
Operating, open circuit voltage
-15
0
1.5
V
9
10
11
Start Delay
Time from application of valid input
voltage to output being in specification
25
mS
Synchronisation⁵
Specified drive signal
320
440 kHz
Switching Frequency
330 350 395 kHz
ABSOLUTE MAXIMUM RATINGS
Input voltage, 24V input types
Input voltage, 48V input types
Output Voltage
Output trim control
Synchronisation/shutdown control
–0.5V to 40V⁶
–0.5V to 80V⁶
–0.3V to controlled output voltage (operating or non-operating)
–1V to +30V
±15V relative to input return
ISOLATION CHARACTERISTICS
Parameter
Isolation Voltage
Resistance
Capacitance
Conditions
Flash tested for 1 second
Viso=500VDC
3.3V and 5V output
12V and 15V output
MIN TYP MAX Units
1500
VDC
1
GΩ
50
pF
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=25°C, nominal input voltage and rated output current unless otherwise specified.