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NPH25S2405I PDF预览

NPH25S2405I

更新时间： 2024-10-01 22:28:51
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Isolated 25W Single Output DC/DC Converters

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NPH25S2405I 数据手册

 浏览型号NPH25S2405I的Datasheet PDF文件第2页 
NPH25S SERIES  
Isolated 25W Single Output DC-DC Converters  
SELECTION GUIDE  
Nominal  
Output  
Output  
Current  
Input Voltage  
Voltage  
Efficiency  
(%)  
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)  
7.3  
5.0  
2.1  
1.7  
7.3  
5.0  
2.1  
1.7  
NPH25S2403i  
NPH25S2405i  
NPH25S2412i  
NPH25S2415i  
NPH25S4803i  
NPH25S4805i  
NPH25S4812i  
NPH25S4815i  
81  
84  
86  
87  
83  
85  
88  
89  
FEATURES  
INPUT CHARACTERISTICS  
■ High Efficiency to 89%  
■ Power Density up to 1.78W/cm  
Parameter  
Conditions  
MIN  
18  
36  
NOM  
24  
48  
MAX  
Units  
3
Continuous operation, 24V input types  
Continuous operation, 48V input types  
36  
75  
Voltage Range  
V
3
(28W/in )  
■ 1.5kV Input to Output Isolation  
■ Industry Standard Pinout  
■ UL 1950 Recognised  
■ Non Latching Current Limit  
■ Constant 350kHz Frequency  
■ Versatile Control Options  
OUTPUT CHARACTERISTICS  
Parameter  
Conditions  
MIN  
TYP  
MAX  
Units  
Voltage Set  
Point Error  
50% load  
0.5  
%
Case temperature –40°C to 110°C  
Load 0% - 100%  
Overall  
2.5  
%
Voltage Error  
Input specified range  
Temperature Coefficient  
of Output Voltage  
(slope)  
■ Continuous Rating to 30W at 60°C  
250 ppm°C  
Without Heatsink  
Deviation of  
■ Operation to Zero Load  
Temperature MIN-MAX  
0.5  
70  
1
%
Output Voltage  
■ Protected Against All Load Faults  
■ Internal Over Temperature Protection  
■ Uses No Electrolytic Capacitors  
■ UL 94V-0 Package Materials  
Line Regulation  
Load Regulation  
Ripple  
Operating voltage range, 50% load  
0.1  
0.5  
%
%
mV  
2
0% - 100% rated load  
rms  
CONTROL CHARACTERISTICS  
Parameter  
Conditions  
MIN  
TYP  
MAX  
Units  
DESCRIPTION  
Voltage Trimming  
At rated load,  
10  
%
The NPH25S 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 E179522 applies.  
Range  
Trim control at either output  
3
Remote Switch Input  
(voltage relative  
Not operating  
-15  
9
0
1.5  
11  
V
to input negative)  
Operating, open circuit voltage  
10  
Time from application of valid input  
Start Delay  
25  
50  
mS  
voltage to output being in specification  
3
Synchronisation  
Switching Frequency  
Specified drive signal  
320  
330  
440  
395  
kHz  
kHz  
350  
ABSOLUTE MAXIMUM RATINGS  
4
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 regulated voltage  
–1V to +30V  
4
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  
4000  
GΩ  
1 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. NPH25S4803Ei.  
2 A minimum load of 10% of rating is recommended for typical applications.  
3 Optional where fitted.  
4 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
12

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