B-XLS-1W

B-XL(D)S-1WSeries
Isolated 1W Single Output DC/DC Converters
SELECTION GUIDE
FEATURES
RoHS compliant
◆
I/O isolation voltage 1000VDC
◆
Operating Temperature: -40℃~﹢85℃
◆
High efficiency up to 81%
Input
Voltage
(V)
Output
Voltage
(V)
Output
Current
(MA)
Input Current
(Rated Load)
(MA)
Efficiency
Order code
B0303XLS-1W
3.3
3.3
303
420
B0305XLS-1W
3.3
5
200
B0505XLS-W5
5
5
B0505XLS-1W
5
B0505XLD-1W
(%)
(KHRS)
72
26
1987
409
74
26
1979
100
131
76
28
1847
5
200
290
69
28
1847
5
5
200
290
69
28
1847
B0512XLS-1W
5
12
83
260
77
33
981
B0512XLD-1W
5
12
83
260
77
33
981
B0515XLS-1W
5
15
67
253
79
40
667
B0515XLD-1W
5
15
67
253
79
40
667
B1205XLS-1W
12
5
200
121
69
36
1485
B1205XLD-1W
12
5
200
121
69
36
1485
B1212XLS-1W
12
12
83
110
76
58
869
B1212XLD-1W
12
12
83
110
76
58
869
B1215XLS-1W
12
15
67
110
76
56
613
B1215XLD-1W
12
15
67
110
76
56
613
B1505XLS-1W
15
5
200
93
69
27
2110
B1505XLD-1W
15
5
200
93
69
27
2110
B1512XLS-1W
15
12
83
85
77
58
1790
B1512XLD-1W
15
12
83
85
77
58
1790
B1515XLS-1W
15
15
67
84
78
67
1560
B1515XLD-1W
15
15
67
84
78
67
1560
B2405XLS-1W
24
5
200
60
70
61
1253
B2405XLD-1W
24
5
200
60
70
61
1253
B2412XLS-1W
24
12
83
53
78
98
784
B2412XLD-1W
24
12
83
53
78
98
784
B2415XLS-1W
24
15
67
52
80
122
566
B2415XLD-1W
24
15
67
52
80
122
566
◆
Fully encapsulated toroidal magnetics
◆
Internal SMD construction
◆
3
Power density up to 0.85W/cm
◆
No electrolytic or tantalum capacitors
◆
5V,12Vand 15V output
◆
No heatsink required
◆
Dual output from a single input rail
◆
UL 94V-0 package material
◆
No external components required
◆
Industry standard pinout
◆
Power sharing on output
◆
MTTF1
Isolation
Capacitance
(PF)
MTTF up to 3.4 million hours
◆
MODEL SELECTION
①
②
③ ④
⑤
⑥
B 05 05 X LS(D) -1W
①Product Series
③Output Voltage
⑤Package Style
②Input Voltage
④Fixed Input
⑥Rated Power
Voltage range
APPLICATIONS
The B-XLS(D)-1W series of industrial
temperature range DC/DC converters are the
standard building blocks for on-board
distributed power systems.They are ideally
suited for providing single rail supplies on
primarily digital boards with the added benefit
of galvanic isolation to reduce switching noise.
Surface mount technology and advanced
packaging materials produce rugged reliable
performance over an extended temperature
range from -40°C to 85°C.
MICRODC RESERVES THE COPYRIGHT
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Input Characteristics
Parameter
Reflected ripple current
Conditions
Min
Typ
Max.
Continuous operation,5V input types
4.5
5
5.5
Continuous operation,12V input types
10.8
12
13.2
Continuous operation,15V input types
13.5
15
16.5
Continuous operation,24V input types
21.6
24
26.4
5V&12V input types
1.6
2.0
15V&24V input types
5
10.0
Units
V
mA p-p
Absolute Maximum Ratings
Lead temperature 1.5mm from case for 10 seconds
Internal power dissipation
300°C
550mW
Input voltage VIN,B0505XLS,B0512XLS,B0515XLS types
7V
Input voltage VIN,B1205XLS,B1212XLS,B1215XLS types
15V
Input voltage VIN,B1505XLS,B151XLS,B1515XLS types
18V
Input voltage VIN,B2405XLS,B2412XLS,B2415XLS types
28V
1.Calculated using MIL-HDBK-217FN2 calculation model with nominal input voltage at full load.
Technical Enquiries-Email:[email protected] Tel:0086-20-86000646
Page 1 of 4
B-XL(D)S-1WSeries
OUTPUT CHARACTERISTICS
Parameter
Conditions
Rated Power
TA=-40°C to 120°C
Voltage Set Point Accuracy
See tolerance envelope
Line regulation
High VIN to low VIN
Min.
Typ.
1.0
Max.
Units
1
W
1.2
%%
Isolation Characteristics
Parameter
Conditions
Min.
Typ.
Max.
Units
Isolation test voltage
Flash tested for 1 second
1000
VDC
Resistance
Viso= 1000VDC
10
GΩ
Conditions
Min.
General Characteristics
Parameter
Typ.
5V input types
110
12V input types
160
15V input types
90
24V input types
80
Max.
Switching frequency
Units
kHz
Temperature Characteristics
Parameter
Conditions
Min.
Specification
All output types
-40
85
-50
130
Storage
Typ.
Max.
Units
℃
5V output types
23
All other output types
28
Case temperature above ambient
TOLERANCE ENVELOPE
B2405XLS-1W
B1512XLS,B1515XLS,B2412XLS,B2415XLS
All other types
All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified.Another 24V& 48V products, please inquire Our technical department!
http://www.microdc.cn
Technical Enquiries-Email:[email protected] Tel:0086-20-86000646
Page 2 of 4
B-XL(D)S-1WSeries
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_XLS 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_XLS 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-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_XLS 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.
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
Ripple and noise measurements are performed with the following test configuration.
C1
1μF X7R multilayer ceramic capacitor, voltage rating to be a minimum of 3 times the output voltage of the DC/DC converter
C2
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
100nF multilayer ceramic capacitor, general purpose
R1
450Ω resistor, carbon film, ±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 speciffied values.
Differential Mode Noise Test Schematic
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Technical Enquiries-Email:[email protected] Tel:0086-20-86000646
Page 3 of 4
B-XL(D)S-1WSeries
PACKAGE SPECIFICATIONS
MECHANICAL DIMENSIONS
7 Pin SIP package
FOOTPRINT DETAILS
-7 PIN SIP
14 Pin DIP package
-14 PIN DIP
Pin
Function
Pin
Function
1
+Vin
-Vin
-Vout
+Vout
1
-Vin
NC
-Vout
+Vout
No Pin
+Vin
2
4
6
7
8
9
11
14
TEMPERATURE DERATING GRAPHS
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.
RECOMMENDED FOOTPRINT DETAILS
RECOMMENDED FOOTPRINT DETAILS
7 Pin SIP Package
14 Pin SIP Package
All dimensions in inches ±0.01 (mm± 0.25mm).
All dimensions in inches ±0.01 (mm± 0.25mm).
TUBE OUTLINE DIMENSIONS
7 PIN SIP Tube
Unless otherwise stated all dimensions in inches (mm) ±0.5mm.
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14 PIN SIP Tube
Tube length (14 Pin DIP) : 20.47 (520mm ±2mm).
Tube length (7 Pin SIP) : 20.47 (520mm ±2mm).
Tube Quantity :25
Technical Enquiries-Email:[email protected] Tel:0086-20-86000646
Page 4 of 4
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