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NDTD4815 PDF预览

NDTD4815

更新时间： 2024-11-17 22:19:59
品牌 Logo 应用领域
其他 - ETC 转换器输出元件输入元件DC-DC转换器
页数 文件大小 规格书
2页 157K
描述
ISOLATED 3W WIDE INPUT DUAL OUTPUT DC-DC CONVERTERS

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NDTD4815 数据手册

 浏览型号NDTD4815的Datasheet PDF文件第2页 
NDT SERIES  
Isolated 3W Wide Input Dual Output DC-DC Converters  
1
SELECTION GUIDE  
Input  
Nominal Rated  
Input Output  
Output Current  
Current  
3
4
Voltage Voltage Min Load  
Full Load  
(mA)  
Full Load  
(mA)  
156  
155  
77  
MTTF  
Order Code  
NDTD2412  
NDTD2415  
NDTD4812  
NDTD4815  
(V)  
24  
24  
48  
48  
(V)  
12  
15  
12  
15  
(mA)  
31  
(%)  
79  
80  
81  
81  
(pF)  
30  
30  
30  
kHrs  
2075  
2080  
2090  
125  
25  
100  
31  
125  
25  
100  
77  
30 2045  
1
INPUT CHARACTERISTICS  
FEATURES  
■ Industry Standard Footprint  
■ 1kVDC Isolation  
■ Dual Isolated Output  
■ Short Circuit Protection  
■ Low Profile 24 Pin Case  
■ Efficiency to 81%  
■ Power Density 0.90W/cm  
■ 2:1 Wide Input Range  
■ 24V & 48V Input  
■ 12V & 15V Output  
■ Footprint 4.73cm  
Parameter  
Conditions  
MIN  
18  
36  
TYP  
24  
48  
200  
125  
MAX  
Units  
24V input types  
48V input types  
24V input types with 10µF at input  
48V input types with 10µF at input  
36  
75  
250  
150  
Voltage Range  
VDC  
Reflected Ripple  
Current  
mA p-p  
1
OUTPUT CHARACTERISTICS  
Parameter  
Rated Power  
Voltage Set  
Conditions  
MIN  
TYP  
MAX  
3
Units  
W
3
With external input/output capacitors,  
1
5
%
Point Accuracy refer to recommended test circuit  
Low line to high line,  
Line Regulation with external input/output capacitors,  
refer to recommended test circuit  
25% load to 100% load,  
Load Regulation with external input/output capacitors,  
refer to recommended test circuit  
0.15  
0.5  
%
2
0.2  
15  
0.5  
30  
%
■ UL 94V-0 Package Materials  
BW = 20Hz to 300kHz  
Ripple  
With external input/output capacitors,  
refer to recommended test circuit  
mV rms  
mV p-p  
%
■ Operating Temperature Range  
–40°C to 85°C  
BW = DC to 20MHz  
■ Load and Line Regulation  
Ripple & Noise With external input/output capacitors,  
refer to recommended test circuit  
90  
150  
3.0  
<1% on Both Outputs  
% voltage change on negative output  
Cross  
■ No Heatsink Required  
■ Internal SMD Construction  
■ Fully Encapsulated  
when positive load varies from 12% to  
Regulation  
2.1  
50% with negative load fixed at 50%  
ABSOLUTE MAXIMUM RATINGS  
Short circuit protection over temperature range and input voltage range continuous  
■ Custom Solutions Available  
Input Voltage, 24V types  
40V  
Input Voltage, 48V types  
Lead temperature 1.5mm from case for 10 seconds  
Minimum Load  
80V  
300°C  
25% of rated output  
DESCRIPTION  
The NDT series is a range of low profile DC-  
DC converters offering dual outputs over a  
2:1 input voltage range. All parts deliver 3W  
output power up to 85°C without heatsinking.  
A flyback oscillator design with isolated  
feedback is used to give regulation over the  
full operating range of 25% to 100% of full  
load. It is strongly recommended that external  
capacitors be used on input and output to  
guarantee performance over full load and  
input voltage range (see application notes for  
guidance). The plastic case is rated to UL  
94V-0 and encapsulant to UL 94V-1and the  
connection pins are formed from a tin plated  
alloy 42 leadframe.  
1
ISOLATION CHARACTERISTICS  
Parameter  
Conditions  
MIN  
1000  
1
TYP  
MAX Units  
VDC  
Isolation Test Voltage  
Resistance  
Flash tested for 1 second  
Viso=1KVDC  
GW  
1
GENERAL CHARACTERISTICS  
Parameter  
Conditions  
MIN  
100  
410  
TYP  
125  
500  
MAX Units  
100% load VIN nominal  
25% load VIN nominal  
150  
kHz  
Switching Frequency  
590  
1
ENVIRONMENTAL  
Parameter  
Operation  
Storage  
Conditions  
MIN  
–40  
–50  
TYP  
MAX Units  
85  
130  
°C  
°C  
°C  
Case Temperature Above Ambient 100% Load  
28  
1 Specifications typical at TA =25°C, nominal input voltage and rated output current unless otherwise specified.  
2 Measured at full load with external input/output capacitors, refer to test circuit.  
3 A lower load is entirely safe but higher levels of output ripple will be experienced.  
4 Calculated using MIL-HDBK-217F with nominal input voltage at full load.  
www.dc-dc.com  
12

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