鈻?/div>
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.
INPUT CHARACTERISTICS
Parameter
Conditions
MIN
NOM
MAX
Units
Voltage Range
Continuous operation, 24V input types
Continuous operation, 48V input types
3
18
36
24
48
36
75
V
V
OUTPUT CHARACTERISTICS
Parameter
Conditions
MIN
TYP
MAX
Units
Voltage Set
Point Error
Overall
Voltage Error
Temperature Coefficient
of Output Voltage
(slope)
Deviation of
Output Voltage
Line Regulation
Load Regulation
Ripple
50% load after 30 mins at nominal
supply voltage
Case temperature 鈥?0擄C to 110擄C
Load 0% - 100%
Input specified range
Over any 10擄C span within the
specified temperature range
Specified over temperature MIN-MAX
Operating voltage range, 50% load
0% - 100% rated load
4
rms
0.5
1
50
0.5
0.05
70
2.5
250
1
0.1
0.5
%
%
ppm擄C
%
%
%
mV
CONTROL CHARACTERISTICS
Parameter
Conditions
MIN
TYP
MAX
Units
Voltage Trimming
Range
Remote Switch Input
5
(voltage relative
to input negative)
At rated load,
Trim control at either output
Not operating
Operating, open circuit voltage
Time from application of valid input
voltage to output being in specification
Specified drive signal
鹵10
-15
9
0
10
25
320
330
350
440
395
1.5
11
%
V
mS
kHz
kHz
Start Delay
Synchronisation
5
Switching Frequency
ABSOLUTE MAXIMUM RATINGS
Input voltage, 24V input types
Input voltage, 48V input types
Output Voltage
Output trim control
Synchronisation/shutdown control
鈥?.5V to 40V
6
鈥?.5V to 80V
6
鈥?.3V to controlled output voltage
(operating or non-operating)
鈥?V to +30V
鹵15V relative to input return
ISOLATION CHARACTERISTICS
Parameter
Conditions
MIN
TYP
MAX
Units
Isolation Voltage
Resistance
Capacitance
Flash tested for 1 second
Viso=500VDC
3.3V and 5V output
12V and 15V output
1500
1
50
90
VDC
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1 If optional pins ADJ and SS are required (as indicated in the pin connections diagram) prefix the ending 鈥渋鈥?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擄C, nominal input voltage and rated output current unless otherwise specified.
1
2
