B1215XD-2W [MICRODC]
Fixed Input,Isolated 2W Single Output DC/DC Converters; 固定输入，隔离2W单输出DC / DC转换器
| 型号： | B1215XD-2W |
| 厂家： | 
MICRODC POWER TECHNOLOGY CO., LTD |
| 描述： | Fixed Input,Isolated 2W Single Output DC/DC Converters |
| 文件： | 总5页 (文件大小：1102K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
B-X(S)D-2WSeries
Fixed Input,Isolated 2W Single Output DC/DC Converters
SELECTION GUIDE
Input
Voltage
(V)
Output
Voltage
(V)
Output
Current
(MA)
Input Current
(Rated Load)
(MA)
Efficiency
(%)
Isolation
Capacitance
(PF)
MTTF1
Order code
(KHRS)
B0503XS-2W
B0505XS-2W
B0505XD-2W
B0509XS-2W
B0509XD-2W
B0512XS-2W
B0512XD-2W
B0515XS-2W
B0515XD-2W
B0524XS-2W
B0524XD-2W
B1205XS-2W
B1205XD-2W
B1209XS-2W
B1209XD-2W
B1212XS-2W
B1212XD-2W
B1215XS-2W
B1215XD-2W
B1224XS-2W
B1224XD-2W
B2405XS-2W
B2406XS-2W
B2409XS-2W
B2412XS-2W
B2415XS-2W
B2424XS-2W
B2405XD-2W
B2409XD-2W
B2412XD-2W
B2415XD-2W
B2424XD-2W
5
3.3
5
400
400
400
222
222
167
167
133
133
83
470
470
470
455
455
450
450
450
450
442
442
200
200
190
190
190
190
185
185
99
85
81
81
84
84
84
84
84
84
82
84
81
81
83
83
85
85
85
85
84
83
80
82
83
84
84
84
80
83
84
84
84
30
33
33
40
40
40
40
40
40
40
40
40
40
61
61
74
74
68
68
68
69
60
58
65
78
58
68
60
65
78
58
68
3988
3956
3956
3682
3682
3299
3299
2833
2833
2766
2766
2519
2519
2405
2405
2235
2235
2011
2011
1800
1789
2000
1850
1980
1800
1760
1800
1850
1886
1986
1801
1850
5
5
5
FEATURES
5
9
◆RoHS compliant
5
9
5
12
12
15
15
24
24
5
◆I/O isolation voltage 1000VDC
◆Operating Temperature: -40℃～﹢85℃
◆High efficiency up to 81%
5
5
5
5
5
83
◆Fully encapsulated toroidal magnetics
◆Internal SMD construction
12
12
12
12
12
12
12
12
12
12
24
24
24
24
24
24
24
24
24
24
24
400
400
222
222
167
167
133
133
83
5
9
◆Power density up to 0.85W/cm3
◆No electrolytic or tantalum capacitors
◆5V,9V,12V and 15V output
9
12
12
15
15
24
24
5
◆No heat sink required
◆Dual output from a single input rail
◆UL 94V-0 package material
◆No external components required
◆Industry standard pinout
83
99
400
333.3
222
167
133
83
104
102
100
99
6
9
12
15
24
5
99
◆Power sharing on output
99
400
222
167
133
83
104
100
99
◆MTTF up to 3.9 million hours
9
12
15
24
MODEL SELECTION
99
①
②
③
④
⑤
⑥
99
B 05 05 X S -2W
add Suffix “P” for Continuous Short Circuit Protection, e.g. B0505XD-2WP
①Product Series
③Output Voltage
⑤SIP Package
②Input Voltage
④Fixed Input
⑥Rated Power
Input Characteristics
Parameter
Conditions
Min Typ Max. Units
Continuous operation,5V input types
APPLICATIONS
4.5
5
5.5
Continuous operation,12V input types
Continuous operation,24V input types
The B_X(S)D-2W series of DC/DC
converters is particularly suited to isolating and
or converting DC power rails. The galvanic
isolation allows the device to be configured to
provide an isolated negative rail in systems
where only positive rails exist. The wide
temperature range guarantees startup from
-40°C and full 2 watt output at 85℃. Pin
compatibility with the B_XLS series ensures
ease of upgradeability.
10.8
21.6
12
24
13.2
26.4
Voltage range
V
Reflected ripple current
7.5
15
mA p-p
Absolute Maximum Ratings
Short-circuit protection2
1 second
Lead temperature 1.5mm from case for 10 seconds
300℃
Internal power dissipation
Input voltage VIN,B05 types
550mW
7V
Input voltage VIN,B12 types
15V
1.Calculated using MIL-HDBK-217FN2 calculation model with nominal input voltage at full load.
2.Supply voltage must be disconnected at the end of the short circuit duration.
MICRODC RESERVES THE COPYRIGHT
All specifications typical at TA=25°C,nominal input voltage and rated output current unless otherwise specified.
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Page 1 of 5
B-X(S)D-2WSeries
OUTPUT CHARACTERISTICS
Parameter
Rated Power
Conditions
TA=-40℃ to 85℃
See tolerance envelope
High VIN to low VIN
3.3V output
Min.
Typ.
Max.
Units
0.2
2
W
Voltage Set Point Accuracy
Line regulation
1.05
12
1.2
20
15
15
15
15
15
%%
%
5V output
12.8
8.3
6.8
6.3
6.0
%
Load regulation
9V output
%
12V output
%
10% to 100% load
15V output
%
24V output
%
Capacitive loading and start up
Typical start up times for this series, with a typical input voltage rise time of 2.2s and output capacitance of 10F, are saw in the table below. The product
series will start into a capacitance of 47F with an increased start time, however, the maximum recommended output capacitances 10F
Typical Start-Up Wave Form
Start-up time
B0505XS
B0509XS
B0512XS
B0515XS
B1205XS
B1209XS
B1212XS
B1215XS
444
1120
1930
3470
409
1320
1320
2270
Isolation Characteristics
Parameter
Conditions
Min.
Typ.
Max.
Units
Isolation voltage
Flash tested for 1 second
1000
VDC
Resistance
1000
MΩ
Viso= 500VDC
General Characteristics
Parameter
Conditions
Min.
Typ.
Max.
Max.
Units
Switching frequency
60
kHz
Temperature Characteristics
Parameter
Conditions
Min.
Typ.
Units
Specification
Storage
All output types
-40
-50
85
125
30
℃
B0505XS output types
Case temperature above
ambient
B1205XS output types
All other output types
25
20
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Page 2 of 5
B-X(S)D-2WSeries
Temperature derating graph
Tolerance envelope
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
OUTPUT RIPPLE REDUCTION
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: Ceramic chip capacitors are recommended. It is required that the ESR(Equivalent Series Resistance)should be as low as possible.X7R 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 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.
CHARACTERISATION TEST METHODS
Ripple & Noise Characterization Method
All measurement to be taken with the following components connected to the UUT as detailed below. 50 Ohm coax cable, solder
connections one end, BNC plug at the other end.
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
100nF multilayer ceramic capacitor, general purpose
C3
R1
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 specfied values.
Differential Mode Noise Test Schematic
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Page 3 of 5
B-X(S)D-2WSeries
Technical notes
ISOLATION VOLTAGE
"Hi Pot Test","Flash Tested","Withstand Voltage","Dielectric Withstand Voltage"&”Isolation Test Voltage" are 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 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?"
The B_X(S)D-2W series has been recognized by Underwriters Laboratory for functional insulation. 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-acssible 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 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 for better than functional isolation where the wire enamel insulation is always supplemented by a further
insulation system of physical spacing or barriers.
PACKAGE SPECIFICATIONS
MECHANICAL DIMENSIONS
SIP Package DIP Package
FOOTPRINT
SIP7
FOOTPRINT
DIP14
Function
+Vin
Function
GND
NC
PIN
PIN
1
1
2
4
6
7
-Vin
8
-Vout
+Vout
0V
9
+V0
11
14
No Pin
Vin
NC No connection
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.
All dimensions in inches ±0.01(mm±0.25mm).
All pins on a 0.1(2.54) pitch and within ±0.01(0.25)of true position.
4. In this datasheet, all the test methods of indications are based on corporate standards.
Weight: 2.8g(SIP)
4.2g(DIP)
RECOMMENDED FOOTPRINT DETAILS
4 Pin SIP Package 14 Pin DIP Package
Unless otherwise stated all dimensions in inches (mm) 0.5mm
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Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
Page 4 of 5
B-X(S)D-2WSeries
TUBE OUTLINE DIMENSIONS
4 PIN SIP Tube
14 PIN DIP Tube
Unless otherwise stated all dimensions in inches (mm) ±0.5mm.
Tube length (14 Pin DIP) : 20.47 (520mm ±2mm).
Tube length (4 Pin SIP) : 20.47 (520mm ±2mm).
Tube Quantity :25
RoHS COMPLIANT INFORMATION
Microdc Professional Power Module,Inc.
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.
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.
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Technical Enquiries-Email:tech@microdc.cn Tel:0086-20-86000646
Page 5 of 5
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