BD LF - Series
1 .
Features
l
l
l
l
l
l
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l
2 To 6 Watt Isolated DC-DC Converter
Single / Dual Output
Wide 2 : 1 Input Range
Low Ripple And Noise
Input / Output Isolation 1.5K Vdc Or 3K Vdc
100% Burn-In
Input
π
- Filter
Custom Design Available
Net Weight
:
12 g / 17 g
Typical
RoHS Converter Certified By SGS
2 .
Single Output Selection Guide
(Specifications typical at Ta= +25℃, Nominal input voltage, Rated output current unless otherwise noted)
Input
Voltage
(Vdc)
Output
Output Input Current Input Current
Output
Load
Voltage Current
@No Load
@Max. Load
Ripple
Regulation
(Vdc) (mA) Max
(mA) Typ.
(mA) Typ.
(mV) Max. (%)Max.
Model No.
Efficiency
(%)Typ.
1) 2 W Single Output Series
BD-1205S2 LF
BD-1215S2 LF
BD-2405S2 LF
BD-2412S2 LF
BD-2415S2 LF
BD-4805S2 LF
BD-4812S2 LF
36~75
18~36
9~18
5
15
5
12
15
5
12
400
134
400
167
134
400
167
9
9
6
6
6
3
3
235
226
116
113
109
57
55
50
120
50
100
120
50
100
± 0.5
± 0.5
± 0.5
± 0.5
± 0.5
± 0.5
± 0.5
71
74
72
74
77
73
76
2) 4 W Single Output Series
BD-123R3S4 LF
BD-1205S4 LF
BD-1212S4 LF
BD-2405S4 LF
BD-2412S4 LF
BD-2415S4 LF
BD-4805S4 LF
BD-4812S4 LF
36~75
18~36
9~18
3.3
5
12
5
12
15
5
12
1000
800
333
800
333
267
800
333
19
20
22
10
13
15
6
7
357
422
416
211
208
201
105
104
50
50
100
50
100
120
50
100
± 0.5
± 0.5
± 0.5
± 0.5
± 0.5
± 0.5
± 0.5
± 0.5
77
79
80
79
80
83
79
80
3) 6 W Single Output Series
BD-1205S6 LF
BD-1215S6 LF
9~18
5
15
1200
500
19
20
633
625
50
100
± 0.5
± 0.5
79
80
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6
BD LF - Series
BD-2405S6 LF
BD-2412S6 LF
BD-2415S6 LF
BD-4805S6 LF
BD-4812S6 LF
4) 2 W Dual Output Series
BD-1205D2 LF
BD-1212D2 LF
BD-2405D2 LF
BD-2412D2 LF
BD-4805D2 LF
BD-4812D2 LF
36~75
18~36
9~18
±5
±12
±5
±12
±5
±12
± 200
± 83
± 200
± 83
± 200
± 83
9
9
6
7
3
3
36~75
18~36
5
12
15
5
12
1200
500
400
1200
500
10
13
13
6
8
2 To 6 Watt Isolated DC-DC Converter
Single / Dual Output
316
313
313
158
154
50
100
120
50
100
± 0.5
± 0.5
± 0.5
± 0.5
± 0.5
79
80
80
79
81
225
215
110
106
56
53
50
100
50
100
50
100
±2
±2
±2
±2
±2
±2
74
77
76
78
75
78
5) 4 W Dual Output Series
BD-123R3D4 LF
BD-1205D4 LF
BD-2405D4 LF
BD-2412D4 LF
BD-2415D4 LF
BD-4805D4 LF
BD-4812D4 LF
BD-4815D4 LF
6) 6 W Dual Output Series
BD-1205D6 LF
BD-1212D6 LF
BD-2405D6 LF
BD-2412D6 LF
BD-2415D6 LF
BD-4805D6 LF
BD-4812D6 LF
BD-4815D6 LF
36~75
18~36
9~18
±5
± 12
±5
± 12
± 15
±5
± 12
± 15
± 600
± 250
± 600
± 250
± 200
± 600
± 250
± 200
22
25
13
14
15
10
13
14
658
633
321
317
313
162
156
156
50
100
50
100
120
50
100
120
±2
±2
±2
±2
±2
±2
±2
±2
76
79
78
79
80
77
80
80
36~75
18~36
9~18
± 3.3
±5
±5
± 12
± 15
±5
± 12
± 15
± 500
± 400
± 400
± 167
± 133
± 400
± 167
± 133
20
22
13
15
17
10
11
12
367
439
219
209
208
108
106
104
50
50
50
100
120
50
100
120
±2
±2
±2
±2
±2
±2
±2
±2
75
76
76
79
80
80
79
80
Notes :
1. Load regulation is for output current change from 0% to 100% Max. Load.
3 .
Absolute Maximum Ratings
(Exceeding these values may damage the module. These are not continuous operating ratings)
Parameter
Condition
12V Input Model
Input Absolute Voltage Range
24V Input Model
48V Input Model
Min.
-0.7
-0.7
-0.7
Typ.
12
24
48
Max.
22.5
45
90
Vdc
Unit
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BD LF - Series
Output Short Circuit Duration
Reverse Polarity Input Current Limit
Operation Temperature (Ambient
Temperature)
Storage Temperature
---
2 To 6 Watt Isolated DC-DC Converter
Single / Dual Output
Nominal Input Range
---
-25
-55
Indefinite & Auto-Restart
---
---
---
1
+71
+105
A
℃
Output Full Load
4 .
Nominal Input/Output Electrical Specifications
(Specifications typical at Ta= +25℃
Parameter
,Nominal input voltage, Rated output current unless otherwise noted)
Condition
12V Input Model
Input Voltage Range
24V Input Model
48V Input Model
Line Regulation
Load Regulation
Output Voltage Accuracy
Output Voltage Balance
Switching Frequency
Temperature Coefficient
Isolation Voltage
Isolation Resistance
Isolation Capacitance
Standard Series
High Isolation Series
500 Vdc
1KHz / 250mV rms
Output Full Load
Single Output Model
Dual Output Model
Nominal Input
Dual Output Same Load
Nominal Input
---
---
---
---
1500
3000
1000
---
± 1.0
---
250
± 0.01
---
---
---
350
Min.
9
18
36
---
---
Typ.
12
24
48
---
---
Max.
18
36
75
± 0.5
± 0.5
±2
± 2.0
± 1.0
---
± 0.02
---
---
---
---
KHz
%/
℃
Vdc
MΩ
pF
%
Vdc
Unit
5 .
General Specification
Parameter
Isolation Voltage
Isolation Resistance
Operating Temperature (1)
Operating Temperature (2)
Storage Temperature
Humidity
Cooling
Case Type
Specification
1500 / 3000 Vdc
1000 MΩ Min.
-25
℃
~ + 71
℃
-25
℃
~ +95
℃
-55
℃
~ +105
℃
Up To 90 %
Free Air Convection
Plastic、Metal
Condition
Test Duration 60 Seconds / 0.5 mA
@ 500 Vdc
@ Ambient Temperature With Natural Convention
@ Case Surface Temperature
---
---
---
---
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BD LF - Series
6 .
Ordering Information
2 To 6 Watt Isolated DC-DC Converter
Single / Dual Output
7 .
Power Derating Curve
BD-xxxxSxHM LF
Device Family
Input Voltage
Output Voltage
"S" For Single Output
Output Power
Suffix "M" For Metal Case
Suffix "H" For Isolation Voltage 3KVdc
Nothing For Isolation Voltage 1KVdc
RoHS Converter Certified By SGS
(
)
8 .
Efficiency & Output Load Chart
Vout= 5 Vdc
90
80
70
Efficiency %
Efficiency %
90
80
70
60
50
40
30
20
10
0
120.0
150.0
180.0
210.0
240.0
270.0
300.0
333.0
0.0
30.0
60.0
90.0
Vout= 12 Vdc
60
50
40
30
20
10
100.0
200.0
300.0
400.0
500.0
600.0
700.0
800.0
0
0.0
Output Load (mA)
Output Load (mA)
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BD LF - Series
9 .
Mechanical Dimension
Metal Case Model
31.75
(1.25)
27.63
(1.09)
20.32 16.16
(0.80) (0.64)
BD-1205S2M LF
IN=9~18Vdc
OUT=5Vdc Pb
2 To 6 Watt Isolated DC-DC Converter
Single / Dual Output
10.16
(0.40)
5.00
(0.20)
Printed Face
Printed Face
Date Code
Pin
1
2
3
4
5
Single Output
No Pin No Pin
-Vin
+Vin
Pin
24
23
22
21
20
Pin
1
2
3
4
5
6
7
8
9
10
11
12
Dual Output
No Pin
-Vin
No Pin
+Vin
Pin
24
23
22
21
20
8.50
(0.33)
φ
0.50
(0.02)
22.86
(0.90)
Bottom View
15.24
(0.60)
3.05
(0.12)
Min.
6
7
8
9
10
No Pin No Pin
19
18
17
No Pin
No Pin
19
18
17
Min.
N.C.
-Vo
16
15
14
13
Common Common
16
No Pin
-Vo
No Pin
No Pin
+Vo
No Pin
15
14
13
No Pin No Pin
N.C.
+Vo
2.54
(0.10)
11
12
No Pin No Pin
Units : mm (inch)
Tolerance : 0.xx ± 0.25 (0.xx ± 0.01)
Plastic Case Model
31.75
(1.25)
27.63
(1.09)
BD-1205S2P LF
IN=9~18Vdc
OUT=5Vdc Pb
10.16
10.16
(0.40)
(0.40)
5.00
5.00
(0.20)
(0.20)
8.50
8.50
(0.33)
(0.33)
3.05
3.05
(0.12)
Min.
(0.12)
Min.
Min.
15.24
(0.60)
Printed Face
Printed Face
Date Code
Date Code
Pin
1
2
3
4
5
6
7
8
Single Output
No Pin No Pin
-Vin
+Vin
Pin
24
23
22
21
20
Pin
1
2
3
4
5
6
7
8
9
10
11
12
Dual Output
No Pin
-Vin
No Pin
+Vin
Pin
24
23
22
21
20
20.32 16.16
(0.80)(0.64)
22.86
(0.90)
No Pin No Pin
19
18
17
No Pin
No Pin
19
18
17
φ
0.50
(0.02)
Bottom View
9
10
11
N.C.
-Vo
16
15
14
13
Common Common
16
No Pin
-Vo
No Pin
No Pin
+Vo
No Pin
15
14
13
No Pin No Pin
N.C.
+Vo
2.54
(0.10)
12
No Pin No Pin
Units : mm (inch)
Tolerance : 0.xx ± 0.25 (0.xx ± 0.01)
Bothhand Enterprise Inc.
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