B0315XT-1W [MICRODC]

1W, FIXED INPUT, ISOLATED SINGLE OUTPUT SMD DC-DC CONVERTER; 1W,定电压输入,隔离单路输出系列的DC -DC转换器
B0315XT-1W
型号: B0315XT-1W
厂家: MICRODC POWER TECHNOLOGY CO., LTD    MICRODC POWER TECHNOLOGY CO., LTD
描述:

1W, FIXED INPUT, ISOLATED SINGLE OUTPUT SMD DC-DC CONVERTER
1W,定电压输入,隔离单路输出系列的DC -DC转换器

转换器 输出元件 输入元件 DC-DC转换器
文件: 总6页 (文件大小:1327K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
B-XT-1W Series  
1W, FIXED INPUT, ISOLATED SINGLE OUTPUT SMD DC-DC CONVERTER  
SELECTION GUIDE  
Efficiency  
(%.Typ.)  
Input  
Output  
Isolation  
Capacitance  
pF  
MTTF1  
KHrs  
Voltage(VDC)  
Nominal  
Order code  
Current (mA)  
Voltage  
(VDC)  
Current  
(mA)  
Rated Load  
B0303XT-1W  
B0305XT-1W  
B0309XT-1W  
B0312XT-1W  
B0315XT-1W  
B0503XT-1W  
B0505XT-1W  
B0505NXT-1W  
B0506XT-1W  
B0509XT-1W  
B0512XT-1W  
B0515XT-1W  
B1205XT-1W  
B1209XT-1W  
B1212XT-1W  
B1215XT-1W  
3.3  
3.3  
3.3  
3.3  
3.3  
5
410  
390  
400  
400  
400  
270  
294  
260  
278  
267  
260  
256  
124  
114  
113  
111  
3.3  
5
303  
200  
111  
83  
81  
83  
74  
76  
81  
85  
83  
86  
83  
85  
74  
78  
80  
80  
85  
81  
29  
30  
34  
40  
42  
31  
33  
42  
43  
38  
44  
43  
50  
72  
89  
100  
5348  
3847  
3134  
3473  
2473  
5515  
6857  
3933  
6677  
5501  
3957  
2747  
4683  
4008  
3121  
2316  
FEATURES  
Footprint over pins 1.37cm2  
9
Short Circuit Protection(automatic recovery)  
I/O isolation voltage 1000VDC  
Operating Temperature: -40℃~﹢85℃  
High efficiency up to 78%  
12  
15  
3.3  
5
66  
303  
200  
200  
167  
111  
83  
5
5
5
Toroidal magnetics  
5
6
5
9
Small SMD package with footprint  
Power density 1.8W/cm3  
5
12  
15  
5
5
66  
Lead frame technology  
12  
12  
12  
12  
200  
111  
83  
Multi-layer ceramic capacitors  
Custom solutions available  
9
12  
15  
66  
1. Calculated using MIL-HDBK-217FN2 with nominal input voltage at full load.  
All specifications typical at TA=25, nominal input voltage and rated output current unless otherwise specified.  
MODEL SELECTION  
B 05 05 X T -1W  
Product Series  
Output Voltage  
SMD Package  
Input Voltage  
Fixed Input  
Rated Power  
Input Characteristics  
Parameter  
Voltage range  
Start up time  
Conditions  
Min.  
Typ.  
Max.  
Units  
Continuous operation, 3.3V input  
Continuous operation, 5V input  
Continuous operation, 12V input  
2.97  
4.5  
3.3  
5
3.63  
5.5  
VDC  
VDC  
10.8  
12  
30  
13.2  
47  
VDC  
APPLICATIONS  
The B-XT-1W series are miniature,1W DC/DC  
converters with high isolation in a SMD package.  
With a new package design these converters are  
qualified for the higher temperatures requested  
by lead-free reflow solder processes. With the  
small footprint, these converters are the ideal  
solution for board level power distribution,mainly  
for applications in the industrial and telecom field.  
For automated SMD production lines the devices  
can be supplied in standard tape and reel  
package.  
mA p-p  
Isolation Characteristics  
Parameter  
Conditions  
Min.  
Typ.  
Max.  
Max.  
Units  
Isolation voltage  
Resistance  
Flash tested for 1 second  
Viso= 1000VDC  
1000  
10  
VDC  
GΩ  
General Characteristics  
Parameter  
Conditions  
Min.  
Typ.  
Units  
Switching frequency  
All output types  
110  
kHz  
Absolute Maximum Ratings  
Parameter  
Conditions  
MICRODC RESERVES THE COPYRIGHT  
Lead temperature 1.5mm from case for 10 seconds  
Internal power dissipation  
300  
600mW  
5.5V  
Input voltage V , B03 types  
Input voltage Vin, B05 types  
7V  
Input voltage Vin, B12 types  
15V  
http://www.microdc.cn  
Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646  
Page 1 of 6  
B-XT-1W Series  
Output Specifications  
Parameter  
Conditions  
Min.  
Typ.  
Max.  
Units  
Rated Power  
Voltage Set Point  
Line regulation  
TA=-40°C to 85°C  
See tolerance envelope  
0.1  
1.0  
W
High VIN to low VIN  
1.0  
10  
1.2  
14  
%%  
%
10% load to rated load, 0303& 0503  
10% load to rated load, 0505& 1205  
10% load to rated load, 0506  
12.8  
9.2  
8.3  
6.8  
6.3  
40  
15  
%
10  
%
Load regulation1  
10% load to rated load, 0509 & 1209  
10% load to rated load, 0512& 1212  
10% load to rated load, 0515& 1215  
BW=DC to 20MHz, 3.3V output types, 0305 & 0505  
BW=DC to 20MHz, 3.3V output types,0505 & 1205  
BW=DC to 20MHz, 0506  
9.0  
7.5  
7.0  
60  
%
%
%
mV p-p  
mV p-p  
mV p-p  
mV p-p  
mV p-p  
mV p-p  
62  
85  
103  
49  
170  
75  
RippleNoise  
BW=DC to 20MHz, 0509& 1209  
BW=DC to 20MHz, 0512& 1212  
BW=DC to 20MHz, 0515& 1215  
39  
65  
38  
76  
Note:112V input types have typically 3% less load regulation change.  
Temperature Characteristics  
Parameter  
Conditions  
Min.  
Typ.  
Max.  
Units  
Specification  
Storage  
All output types  
-40  
-55  
85  
125  
0305, 0309, 0315  
0303, 0312, 0503, 0505, 0509, 0512C, 0515  
0505, 1205  
25  
30  
43  
40  
Case temperature  
rise above ambient  
1209, 1212, 1215  
Cooling  
Free air convection  
Technical notes  
ISOLATION VOLTAGE  
Hi Pot TestFlash TestedWithstand VoltageProof VoltageDielectric Withstand Voltage'&'Isolation Test Voltageare all terms that relate to the same thing, a test voltage, applied for a specified time,  
across a component designed to provide electrical isolation, to verify the integrity of that isolation.  
Professional Power Module B-XT-1W series of DC/DC converters are all 100% production tested at their stated isolation voltage. This is 1kVDC for 1 second.  
A question commonly asked is, What is the continuous voltage that can be applied across the part in normal operation?”  
For a part holding no specific agency approvals, such as the B-XT-1W series, both input and output should normally be maintained within SELV limits i.e. less than 42.4V peak, or 60VDC. The isolation test voltage  
represents a measure of immunity to transient voltages and the part should never be used as an element of a safety isolation system. The part could be expected to function correctly with several hundred volts  
offset applied continuously across the isolation barrier; but then the circuitry on both sides of the barrier must be regarded as operating at an unsafe voltage and further isolation/insulation systems must form a  
barrier between these circuits and any user-accessible circuitry according to safety standard requirements.  
REPEATED HIGH-VOLTAGE ISOLATION TESTING  
It is well known that repeated high-voltage isolation testing of a barrier component can actually degrade isolation capability, to a lesser or greater degree depending on materials, construction and environment. The  
B-XT-1W series has toroidal isolation transformers, with no additional insulation between primary and secondary windings of enameled wire. While parts can be expected to withstand several times the stated  
test voltage, the isolation capability does depend on the wire insulation. Any material, including this enamel (typically polyurethane) is susceptible to eventual chemical degradation when subject to very high  
applied voltages thus implying that the number of tests should be strictly limited. We therefore strongly advise against repeated high voltage isolation testing, but if it is absolutely required, that the voltage be  
reduced by 20% from specified test voltage.  
This consideration equally applies to agency recognized parts rated for better than functional isolation where the wire enamel insulation is always supplemented by a further  
insulation system of physical spacing or barriers.  
Temperature derating graph  
http://www.microdc.cn  
Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646  
Page 2 of 6  
B-XT-1W Series  
Application Notes  
Minimum load  
The minimum load to meet datasheet specification is 10% of the full rated load across the specified input voltage range. Lower than 10% minimum loading will result in an  
increase in output voltage, which may rise to typically double the specified output voltage if the output load falls to less than 5%.  
Capacitive loading and start up  
Typical start up times for this series, with a typical input voltage rise time of 2.2μs and output capacitance of 10μF, are shown in the table below. The product series will start  
into a capacitance of 47μF with an increased start time, however, the maximum recommended output capacitance is 10μF.  
Start-up time  
μs  
Start-up time  
μs  
B0303XT  
B0305XT  
B0309XT  
B0312XT  
B0315XT  
B0503XT  
B0505XT  
B0505NXT  
437  
B0506XT  
B0509XT  
B0512XT  
B0515XT  
B1205XT  
B1209XT  
B1212XT  
B1215XT  
7200  
3146  
4960  
7740  
895  
1359  
3435  
6590  
7625  
533  
2150  
3640  
7180  
1368  
721  
Ripple & Noise Characterization Method  
Ripple and noise measurements are performed with the following test configuration.  
C1  
C2  
1μF X7R multilayer ceramic capacitor, voltage rating to be a minimum of 3 times the output voltage of the DC/DC converter  
10μF tantalum capacitor, voltage rating to be a minimum of 1.5 times the output voltage of the DC/DC converter with an ESR of less  
than 100mΩ at 100 kHz  
C3  
R1  
100nF multilayer ceramic capacitor, general purpose  
450Ω resistor, carbon fi lm, ±1% tolerance  
R2  
50Ω BNC termination  
T1  
3T of the coax cable through a ferrite toroid  
RLOAD  
Resistive load to the maximum power rating of the DC/DC converter. Connections should be made via twisted wires  
Measured values are multiplied by 10 to obtain the specified values.  
Differential Mode Noise Test Schematic  
http://www.microdc.cn  
Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646  
Page 3 of 6  
B-XT-1W Series  
Application Notes  
Output Ripple Reduction  
By using the values of inductance and capacitance stated, the output ripple at the rated load is lowered to 5mV p-p max.  
Component selection  
Capacitor: It is required that the ESR (Equivalent Series Resistance) should be as low as possible, ceramic types are recommended.  
The voltage rating should be at least twice (except for 15V output), the rated output voltage of the DC/DC converter.  
Inductor: The rated current of the inductor should not be less than that of the output of the DC/DC converter. At the rated current, the DC resistance of the inductor should be  
such that the voltage drop across the inductor is <2% of the rated voltage of the DC/DC converter. The SRF (Self Resonant Frequency) should be >20MHz.  
Inductor  
Capacitor  
L,μH  
10  
47  
22  
10  
47  
10  
47  
47  
10  
22  
47  
47  
47  
22  
47  
47  
SMD  
Through Hole  
11R103C  
11R103C  
11R223C  
11R103C  
11R473C  
11R103C  
11R473C  
11R473C  
11R103C  
11R223C  
11R473C  
11R473C  
11R473C  
11R223C  
11R473C  
11R473C  
C,μF  
4.7  
4.7  
2.2  
1
B0303XT  
B0305XT  
B0309XT  
B0312XT  
B0315XT  
B0503XT  
B0505XT  
B0505NXT  
B0506XT  
B0509XT  
B0512XT  
B0515XT  
B1205XT  
B1209XT  
B1212XT  
B1215XT  
82103C  
82473C  
82223C  
82103C  
82473C  
82103C  
82473C  
82473C  
82103C  
82223C  
82473C  
82473C  
82473C  
82223C  
82473C  
82473C  
1
4.7  
4.7  
4.7  
4.7  
2.2  
1
1
4.7  
2.2  
1
1
Tolerance Envelopes  
The voltage tolerance envelope shows typical load regulation characteristics for this product series. The tolerance envelope is the maximum output voltage variation due to  
changes in output loading.  
http://www.microdc.cn  
Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646  
Page 4 of 6  
B-XT-1W Series  
OUTLINE DIMENSIONS FOOTPRINT DETAILS  
MECHANICAL DIMENSIONS  
SOLDER PAD DIMENSION  
Note:  
Unit:mm[inch]  
Pin section tolerances:±0.10mm[±0.004inch]  
General tolerances:±0.25mm[±0.010inch]  
Dimensions in [mm], () = Inch  
Pin pitch tolerances: ±0.13 (±0.005)  
Other tolerances: ±0.25 (±0.01)  
Weight: 1.21g  
TUBE OUTLINE DIMENSIONS  
FOOTPRINT DETAILS  
Pin  
1
Single  
-Vin  
+Vin  
NA  
3
5
7
-Vout  
+Vout  
NA  
8
10  
12  
14  
NA  
NA  
NA - Not available for electrical connection.  
Unless otherwise stated all dimensions in mm±0.5 (inches ±0.02).  
Tube length : 475±2.0 (18.70±0.07).  
Tube Quantity :35  
Specifcations can be changed any time without notice.  
No parallel connection or plug and play.  
Note:  
1. The load shouldn't be less than 10%, otherwise ripple will increase dramatically.  
2. Operation under 10% load will not damage the converter; However, they may not meet all specification listed.  
3. All specifications measured at Ta=25°C, humidity<75%, nominal input voltage and rated output load unless otherwise specified.  
4. In this datasheet, all the test methods of indications are based on corporate standards.  
5. Only typical models listed, other models may be different, please contact our technical person for more details.  
http://www.microdc.cn  
Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646  
Page 5 of 6  
B-XT-1W Series  
Tape & Reel Specifications  
Reel Packaging Details  
Product Orientation  
Pin 1, located nearest to carrier drive sprocket.  
Reel Quantity : 500  
Reel Outline Dimensions  
Tape Outline Dimensions  
RoHS COMPLIANT INFORMATION  
This series is compatible with RoHS soldering systems with a peak wave solder temperature of 300°C  
for 10 seconds. The pin termination finish on the SIP package type is Tin Plate, Hot Dipped over Matte  
Tin with Nickel Preplate. The DIP types are Matte Tin over Nickel Preplate. Both types in this series are  
backward compatible with Sn/Pb soldering systems.  
Microdc Professional Power Module,Inc.  
Tel:0086-20-86000646 E-mail:tech@microdc.cn  
Website:http://www.microdc.cn  
Microdc Professional Power module,Inc.makes no representation that  
the use of its products in the circuits described herein, or the use of other  
technical information contained herein, will not infringe upon existing or  
future patent rights. Specifications are subject to change without notice.  
©2010 Microdc Professional Power Module, Inc. Guangzhou  
REACH COMPLIANT INFORMATION  
This series has proven that this product does not contain harmful chemicals, it also has harmful chemical  
substances through the registration, inspection and approval.  
http://www.microdc.cn  
Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646  
Page 6 of 6  

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