The copyright and authority for the interpretation of the products are reserved by MORNSUN IB_LD-1W & IB_LS-1W 2019.12.12-B/5 page of 5
1
FEATURES
Compact size
SIP/DIP package
I/O isolation test voltage 1k VDC
Operating ambient temperature range
-40℃to +85℃
Excellent thermal characteristic
Internal surface mounted design
Industry standard pin-out
No external component required
RoHS Compliant
EN60950 Approval
APPLICATIONS
The IB_LD-1W & IB_LS-1W Series are especially
designed for use in on-board distributed power
supply systems and applications with input to output
isolation requirements with the following
characteristics:
These products apply to:
1) The voltage of the input power supply is within a
range of ±5% max;
2) Input to output isolation of up to 1000VDC is
required;
3) Applications requiring tight line and load
regulation and/or low ripple and noise.
IB_LD-1W & IB_LS-1W Series
1W isolated DC-DC converter with Fixed Input Voltage and
Regulated Single Output
Patent Protection RoHS
MODEL SELECTION
Certification
Model
Input Voltage
(VDC)
Output
Voltage
(VDC)
Output Current
(mA)
Input Current
typical (mA)
Nominal
Range
Max.
Min.
Full.
Load
No
Load
Min.
Typ.
--
IB0505LD-1W
5
4.75-5.25
5
200
20
299
30
63
67
IB0512LD-1W
12
83
9
278
68
72
CE
IB0503LS-1W
3.3
303
3
333
56
60
IB0505LS-1W
5
200
20
299
63
67
IB0509LS-1W
9
111
12
286
66
70
IB0512LS-1W
12
83
9
282
67
71
IB0515LS-1W
15
67
7
274
69
73
IB0524LS-1W
24
42
5
294
64
68
--
IB1205LD-1W
12
11.4-12.6
5
200
20
124
15
63
67
IB1209LD-1W
9
111
12
116
68
72
IB1212LD-1W
12
83
9
119
66
70
IB1215LD-1W
15
67
7
113
70
74
CE
IB1205LS-1W
5
200
20
124
63
67
IB1209LS-1W
9
111
12
116
68
72
IB1212LS-1W
12
83
9
119
66
70
IB1215LS-1W
15
67
7
113
70
74
IB1224LS-1W
24
42
5
123
64
68
IB1505LS-1W
15
14.25-15.75
5
200
20
100
63
67
IB1515LS-1W
15
67
7
93
68
72
--
IB2405LD-1W
24
22.8-25.2
5
200
20
61
8
64
68
CE
IB2405LS-1W
5
200
20
61
64
68
IB2409LS-1W
9
111
12
61
64
68
The copyright and authority for the interpretation of the products are reserved by MORNSUN IB_LD-1W & IB_LS-1W 2019.12.12-B/5 page of 5
2
CE
IB2412LS-1W
24
22.8-25.2
12
83
9
57
8
69
73
IB2415LS-1W
15
67
7
56
71
75
IB2424LS-1W
24
42
5
61
64
68
OUTPUT SPECIFICATIONS
Item
Test condition
Min.
Typ.
Max.
Unit
Linear Regulation
Vin change nominal ±1%
--
--
±0.25
%
Load Regulation
10% to 100% load step
--
±1
±2
Voltage Accuracy
100% load
--
--
±3
Temperature Coefficient
100% load
--
--
±0.03
%/℃
Ripple&Noise*
20MHz Bandwidth
--
10
75
mVp-p
Note*: The “parallel cable” method is used for Ripple and Noise test, please refer to DC-DC Converter Application Notes for specific information.
GENERAL SPECIFICATION
Item
Test Conditions
Min.
Typ.
Max.
Unit
Storage humidity range
Non condensing
--
--
95
%RH
Operating Temperature
-40
--
85
℃
Storage Temperature
-55
--
125
Case Temperature Rise
Ta=25℃
--
15
--
Pin Soldering Resistance
Temperature
Soldering spot is 1.5mm from case for 10 seconds
--
--
300
Cooling Method
Free air convection
Case Material
Black flame-retardant and heat-resistant
plastic (UL94 V-0)
Short-circuit Protection
*IBXX05LS/LD-1W、IBXX24LS-1W
--
--
1
S
Others
Continuous
Switching Frequency
100% load, nominal input
--
120
300
KHz
MTBF
MIL-HDBK-217F@25℃
3500
--
--
K hours
Weight
IB_LS-1W
--
2.1
--
g
IB_LD-1W
--
2.4
--
g
Note:* At the end of the short circuit duration, the supply voltage must be disconnected from specified modules.
ISOLATION
Item
Test condition
Min.
Typ.
Max.
Unit
Isolation
Input-Output Electric Strength Test for 1minute with a leakage
current of 1mA max.
1000
--
--
VDC
Insulation Resistance
Input-output resistance at 500VDC
1000
--
--
MΩ
Isolation Capacitance
Input-output capacitance at 100KHz/0.1V
--
60
--
pF
The copyright and authority for the interpretation of the products are reserved by MORNSUN IB_LD-1W & IB_LS-1W 2019.12.12-B/5 page of 5
3
TYPICAL CHARACTERISTICS
Operating Temp.( )C
Temperature Derating Graph
MECHANICAL DIMENSIONS & PIN ALLOCATION
IB_LS-1W
The copyright and authority for the interpretation of the products are reserved by MORNSUN IB_LD-1W & IB_LS-1W 2019.12.12-B/5 page of 5
4
APPLICATION NOTE
1) Minimum Output Load Requirement
For a reliable and efficient operation of the converter, the minimum load should never be below 10% of the rated output load. If the total
required output power is less than 10%, a parallel bleeding resistor is required, ensuring that the sum of the power consumption is always
maintained at 10% minimum.
2) Recommended circuit for Ripple Reduction
Input and/or output ripple can be further reduced by connecting “LC” filters to the input and/or output terminals of the DC-DC converter
as shown in Figure 1.
L
Vin
GND
+Vo
0V
DC
Cin
L
DC Cout
Figure 1
IB_LD-1W
The copyright and authority for the interpretation of the products are reserved by MORNSUN IB_LD-1W & IB_LS-1W 2019.12.12-B/5 page of 5
5
Note: To avoid mutual interference/oscillation the inductance and the frequency of the “LC” filter network should be staggered with the
DC-DC converters frequency. Also, the capacitance of the output filter capacitor must be properly selected. If the capacitor value that is
too high, the converter may not be able to properly start up. To ensured safe and reliable operation, the specified filter capacitor value in
Table 1 must not be exceeded.
TABLE 1: RECOMMENDED EXTERNAL CAPACITOR VALUES
Vin
(VDC)
Cin
(μF)
Vout
(VDC)
Cout
(μF)
5
4.7
3.3/5
10
12
4.7
9
4.7
15
2.2
12
2.2
24
1
15
1
--
--
24
0.47
It is not recommended to use external capacitors for applications where the actual output power is less than 0.5W
3)Overload Protection
This family of DC-DC converter products does not incorporate any protection against overcurrent and/or short circuit. The best
approach for protection the device is to add a self-recovery fuse or a circuit breaker in series to the input.
4)Input Over-voltage Protection Circuit
For input overvoltage protection, simply use a linear voltage regulator with overtemperature protection in front of the DC-DC converter
as shown in Figure 2.
Vin
GND
REG +Vo
DC DC
0V
Figure 2
5) The total output power of the device has to be reduced to 60% or less of the rated output power at
ambient temperatures above 71°C.
6) These products are not hot-swappable and do not support parallel connection of their outputs. We
recommended the use of a converter with higher output power capability to cover applications with
higher power requirements.
Note:
1. For additional information on Product Packaging please refer to www.mornsun-power.com. Packaging bag number:58200009;
2. If the product is not operated within the required load range, the product performance cannot be guaranteed to comply with all
parameters in the datasheet;
3. The maximum capacitive load offered were tested at input voltage range and full load;
4. Unless otherwise specified, parameters in this datasheet were measured under the conditions of Ta=25℃, humidity<75%RH with nominal
input voltage and rated output load;
5. All index testing methods in this datasheet are based on our Company’s corporate standards;
6. Non-standard models may have slightly different characteristics than the standard models listed. For details, please contact technical
support;
7. We can provide product customization service, please contact our technicians directly for specific information;
8. Products are related to laws and regulations: see "Features" and "EMC";
9. Our products shall be classified according to ISO14001 and related environmental laws and regulations, and shall be handled by
qualified units.
MORNSUN Science & Technology Co.,Ltd.
Address: No. 5, Kehui St. 1, Kehui development center, Science Ave., Guangzhou Science City, Huangpu district, Guangzhou,P.R.China.
Tel: 86-20-38601850 Fax: 86-20-38601272 E-mail: sales@mornsun.cn www.mornsun-power.com