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IB_LD-1W & IB_LS-1W Series
1W, FIXED INPUT, ISOLATED & REGULATED
SINGLE OUTPUT DC-DC CONVERTER
FEATURES
l Small Footprint
l SIP/DIP Package
l 1KVDC Isolation
l Temperature Range: -40°C to +85°C
l No Heat sink Required
l Internal SMD Construction
l No External Component Required
l Industry Standard Pinout
l RoHS Compliance
Patent Protection RoHS
MODEL SELECTION
Rated Power
Package Style
Output Voltage
Input Voltage
Product Series
PRODUCT PROGRAM
Model
Input Voltage
(VDC)
Nominal
Range
IB0505LD-1W
IB0512LD-1W
IB0515LD-1W
IB0503LS-1W
IB0505LS-1W
IB0509LS-1W
IB0512LS-1W
5
4.75-5.25
IB0515LS-1W
IB0524LS-1W
IB1205LD-1W
IB1209LD-1W
IB1212LD-1W
B1215LD-1W
IB1205LS-1W
IB1209LS-1W
12
11.4-12.6
IB1212LS-1W
IB1215LS-1W
IB1224LS-1W
IB1505LS-1W
IB1515LS-1W 15 14.25-15.75
IB1524LS-1W
APPLICATIONS
The IB_LD-1W & IB_LS-1W Series are specially designed
for applications where a group of polar power supplies are
isolated from the input power supply in a distributed power
supply system on a circuit board.
These products apply to:
1) Where the voltage of the input power supply is fixed
(voltage variation ≤±5%);
2) Where isolation is necessary between input and output
(isolation voltage 1000VDC);
3) Where the regulation of the output voltage and the output
ripple noise are demanded.
Output Voltage
(VDC)
5
12
15
3.3
5
9
12
15
24
5
9
12
15
5
9
12
15
24
5
15
24
Output Current
(mA)
Max.
Min.
200 20
83 9
67 7
303 3
200 20
111 12
83 9
67 7
42 5
200 20
111 12
83 9
67 7
200 20
111 12
83 9
67 7
42 5
200 20
67 7
42 5
Input Current
(mA)(Typ.)
@Max.
Load
@No
Load
299
278
274
333
299 30
286
282
274
294
124
116
119
113
124 15
116
119
113
123
100
93 15
98
Efficiency(%)
@Max. Load
Min. Typ.
63 67
68 72
69 73
56 60
63 67
66 70
67 71
69 73
64 68
63 67
68 72
66 70
70 74
63 67
68 72
66 70
70 74
64 68
63 67
68 72
64 68
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Model
IB2405LD-1W
IB2409LD-1W
IB2412LD-1W
IB2415LD-1W
IB2424LD-1W
IB2405LS-1W
IB2409LS-1W
IB2412LS-1W
IB2415LS-1W
IB2424LS-1W
Input Voltage
(VDC)
Nominal
Range
24 22.8-25.2
Output Voltage
(VDC)
5
9
12
15
24
5
9
12
15
24
Output Current
(mA)
Max.
Min.
200 20
111 12
83 9
67 7
42 5
200 20
111 12
83 9
67 7
42 5
Input Current
(mA)(Typ.)
@Max.
Load
@No
Load
61
61
57
56
61
8
61
61
57
56
61
Efficiency(%)
@Max. Load
Min. Typ.
64 68
64 68
69 73
71 75
64 68
64 68
64 68
69 73
71 75
64 68
OUTPUT SPECIFICATIONS
Item Test condition
Min.
Line regulation
For Vin change of ±5%
--
Load regulation
10% to 100% load
--
Output voltage accuracy
100% load
--
Temperature drift
100% load
--
Output ripple*
20MHz Bandwidth
--
Output Noise*
20MHz Bandwidth
--
*Test ripple and noise by parallel cablemethod. See detailed operation instructions at DC-DC Application Notes.
Typ.
--
±1
--
--
10
50
Max.
±0.25
±2
±3
0.03
20
75
Unit
%
%/
mVp-p
COMMON SPECIFICATION
Item Test Conditions
Storage humidity range
Non condensing
Operating temperature
Storage temperature
Lead temperature
Ta=25°C
Temp. rise at full load
1.5mm from case for 10 seconds
Cooling
Case material
Short circuit protection
*IBXX05(LS/LD)-1W
IBXX24(LS/LD)-1W
Others
Switching Frequency
MTBF
100% load, nominal input
MIL-HDBK-217F@25
Weight
IB_LS-1W / IB_LS-W75
IB_LD-1W / IB_LD-W75
*Supply voltage must be discontinued at the end of short circuit duration.
Min.
--
-40
-55
--
--
--
--
3500
--
--
Typ. Max.
-- 95
-- 85
-- 125
15 25
-- 300
Free air convection
Plastic(UL94-V0)
-- 1
Continuous
120 300
-- --
2.1 --
2.4 --
Unit
%
S
KHz
K hours
g
g
ISOLATION SPECIFICATIONS
Item Test condition
Isolation voltage
Input-Output, tested for 1 minute and leakage current
less than 1 mA
Isolation resistance
Input-Output, test at 500VDC
Isolation Capacitance
Input-Output,100KHz/0.1V
Min.
1000
1000
--
Typ.
--
--
60
Max.
--
--
--
Unit
VDC
MΩ
pF
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TYPICAL CHARACTERISTICS
Temperature Derating Graph
Operating Temp.( C )
OUTLINE DIMENSIONS & PIN CONNECTIONS
IB_LS-1W / IB_LS-W75
IB_LD-1W / IB_LD-W75
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APPLICATION NOTE
1)Requirement on output load
To ensure this module can operate efficiently and reliably, During operation, the minimum output load could not be less than 10% of the full load.
If the actual output power is very small, please connect a resistor with proper resistance at the output end in parallel to increase the load.
2)Recommended circuit
If you want to further decrease the input/output ripple, an LCfiltering network may be connected to the input and output ends of the DC/DC
converter, see (Figure 1).
L
Vin
L
+Vo
Cin
GND
DC DC
Cout
0V
(Figure 1)
It should also be noted that the inductance and the frequency of the LCfiltering network should be staggered with the DC/DC frequency to avoid
mutual interference. However, the capacitance of the output filter capacitor must be proper. If the capacitance is too big, a startup problem might
arise. For every channel of output, provided the safe and reliable operation is ensured, the greatest capacitance of its filter capacitor sees (Table 1).
EXTERNAL CAPACITOR TABLE (TABLE 1)
Vin
Cin
Vout
Cout
(VDC) (μF) (VDC) (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
Its not recommend to connect any external capacitor in the application field with less than 0.5 watt output.
3)Overload Protection
Under normal operating conditions, the output circuit of these products has no protection against over-current and short-circuits. The simplest
method is to connect a self-recovery fuse in series at the input end or add a circuit breaker to the circuit.
4)Input Over-voltage Protection Circuit
The simplest device for input over-voltage protection is a linear voltage regulator with overheat protection that is connected to the input end in
series (Figure 2).
Vin
GND
REG
DC DC
(Figure 2)
+Vo
0V
5)When the environment temperature is higher than 71°C, the product output power should be less then 60% of the rated power.
6)It is not recommended to increase the output power capability by connecting two or more converters in parallel. The product is not
hot-swappable.
Note:
1. Operation under minimum load will not damage the converter; However, they may not meet all specifications.
2. Max. Capacitive Load is tested at nominal input voltage and full load.
3. Unless otherwise noted, All specifications are measured at Ta=25°C, humidity<75%, nominal input voltage and rated output load.
4. In this datasheet, all test methods are based on our corporate standards.
5. All characteristics are for listed models, and non-standard models may perform differently. Please contact our technical support for more detail.
6. Please contact our technical support for any specific requirement.
7. Specifications of this product are subject to changes without prior notice.
MORNSUN Science & Technology Co.,Ltd.
Address: No. 5, Kehui St. 1, Kehui development center, Science Ave., Guangzhou Science City, Luogang district, Guangzhou,P.R.China.
Tel: 86-20-38601850
Fax:86-20-38601272
E-mail: info@mornsun.cn
Http://www.mornsun-power.com
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