B7 LF Series
1 .
Features
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l
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10 To 15 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 Filter With Internal Capacitor
Custom Design Available
Net Weight
:
24 g / 36.5 g Typical
RoHS Converter Certified By SGS
2 .
Model Selection Guide
(Specifications typical at Ta= +25℃, Nominal input voltage, Rated output current unless otherwise noted)
Input
Output
Output Input Current Input Current Output
Load
Efficiency
Voltage Voltage Current
@No Load @Max. Load
Ripple
Regulation
(%)Typ.
(Vdc)
(Vdc) (mA) Max
(mA) Typ.
(mA) Typ. (mV) Max. (%)Max.
Model No.
1) 10 W Single Output Series
B7-123R3S10 LF
B7-1205S10 LF
B7-2405S10 LF
B7-2412S10 LF
B7-4805S10 LF
18~36
36~72
9~18
3.3
5.0
5
12
5
3000
2000
2000
833
2000
20
25
13
15
7
1044
1042
514
669
260
50
50
50
100
50
± 0.5
± 0.5
± 0.5
± 0.5
± 0.5
79
80
81
83
80
2) 15 W Single Output Series
B7-1205S15 LF
B7-1212S15 LF
B7-2405S15 LF
B7-2412S15 LF
B7-4805S15 LF
B7-4812S15 LF
9~18
18~36
5
12
5
12
5
12
3000
1250
3000
1250
3000
1250
22
30
17
20
12
15
1582
1543
781
762
396
381
50
100
50
100
50
100
± 0.5
± 0.5
± 0.5
± 0.5
± 0.5
± 0.5
79
81
80
82
79
82
36~72
3) 10 W Dual Output Series
B7-1205D10 LF
B7-2405D10 LF
B7-2415D10 LF
B7-4805D10 LF
B7-4815D10 LF
9~18
18~36
±5
±5
± 15
±5
± 15
± 1000
± 1000
± 333
± 1000
± 333
27
18
20
12
15
1068
527
661
260
254
50
50
120
50
120
±2
±2
±2
±2
±2
78
79
82
80
80
36~72
4) 15 W Dual Output Series
B7-1205D15 LF
B7-1212D15 LF
9~18
±5
± 12
± 1500
± 625
27
32
1603
1563
50
100
±2
±2
78
80
Bothhand Enterprise
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B7 LF Series
B7-2405D15 LF
B7-2412D15 LF
B7-4805D15 LF
B7-4815D15 LF
36~72
18~36
±5
± 12
±5
± 15
± 1500
± 625
± 1500
± 500
10 To 15 Watt Isolated DC-DC Converter
Single / Dual Output
20
22
12
15
791
772
396
381
50
100
50
120
±2
±2
±2
±2
79
81
79
82
Notes :
1. B7-xxxxSxx or B7-xxxxDxx is for customer design.
2. 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
Output Short Circuit Duration
Reverse Polarity Input Current Limit
Operation Temperature (Ambient
Temperature)
Storage Temperature
Nominal Input Range
---
Output Full Load
---
-25
-55
Min.
-0.7
-0.7
-0.7
Typ.
12
24
48
Max.
22.5
45
90
Vdc
Unit
Indefinite & Auto-Restart
---
---
---
1
+71
+105
A
℃
4 .
Nominal Input/Output Electrical Specifications
(Specifications typical at Ta= +25℃, Nominal input voltage, Rated output current unless otherwise noted)
Parameter
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 At Same Load
Nominal Input
Min.
9
18
36
---
---
---
---
---
---
---
1500
3000
1000
---
Typ.
12
24
48
---
---
---
± 1.0
---
250
± 0.01
---
---
---
350
Max.
18
36
72
± 0.5
± 0.5
±2
± 2.0
± 1.0
---
± 0.02
---
---
---
---
MΩ
pF
KHz
%/
℃
Vdc
%
Vdc
Unit
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B7 LF Series
5 .
General Specification
Parameter
Isolation Voltage
Isolation Resistance
Operating Temperature (1)
Operating Temperature (2)
Storage Temperature
Humidity
Cooling
Case Type
10 To 15 Watt Isolated DC-DC Converter
Single / Dual Output
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
---
---
---
---
6 .
Ordering Information
7 .
Power Derating Curve
Temperature derating graph
B7-xxyySxxHM LF
Device Family
Input Voltage
Output Voltage
"S" For Single Output, "D" For Dual Output
Output Power
Suffix "H" For Isolation Voltage 3KVdc
Nothing For Isolation Voltage 1.5KVdc
"M" For Metal Case; "P" For Plastic Case
RoHS Converter Certified By SGS
(
)
Bothhand Enterprise
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E-mail: sales@bothhand.com.tw
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B7 LF Series
Vout = 5 Vdc
90
80
70
60
50
40
30
20
10
0
300.0
600.0
900.0
0.0
10 To 15 Watt Isolated DC-DC Converter
Single / Dual Output
8.
Efficiency & Output Load Chart
Vout = 12 Vdc
90
80
Efficiency %
70
60
50
40
30
20
10
0
125.0
250.0
375.0
500.0
625.0
750.0
875.0
0.0
Efficiency %
1000.0
1125.0
1200.0
1500.0
1800.0
2100.0
2400.0
2700.0
3000.0
Output Load (mA)
Output Load (mA)
Vout = 15 Vdc
90
80
70
Efficiency %
60
50
40
30
20
10
100.0
150.0
200.0
250.0
300.0
350.0
400.0
450.0
500.0
0
0.0
50.0
Output Load (mA)
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1250.0
B7 LF Series
9.
Mechanical Dimension
Single Output Metal Case Model
25.40
(1.00)
21.16
(0.83)
2.54
(0.10)
15.24
(0.60)
+OUT
10 To 15 Watt Isolated DC-DC Converter
Single / Dual Output
10.16
(0.40)
10.16
(0.40)
2.54
(0.10)
11.30
(0.44)
ψ
1.00
f
(0.04)
-OUT
Date Code
-OUT
+OUT
Printed Face
34.66
(1.36)
8.50
(0.33)
50.80 46.42
(2.00) (1.83)
B7-1205S10M LF
IN=9~18Vdc
OUT=5Vdc/2A
20.32
(0.80)
+IN
-IN
5.00
(0.20)
Pb
IN
-
+
15.24
(0.60)
Top View
10.16 5.08 10.16
(0.40) (0.20) (0.40)
5.08
(0.20)
Bottom View
Units : mm (inch)
Tolerance : 0.xx ± 0.25 (0.xx ± 0.01)
Dual Output Metal Case Model
25.40
(1.00)
21.16
(0.83)
2.54 10.16 10.16 2.54
2.54 10.16 10.16 2.54
(0.10) (0.40) (0.40) (0.10)
(0.10) (0.40) (0.40) (0.10)
11.30
11.30
(0.44)
(0.44)
-OUT COM +OUT
15.24
15.24
(0.60)
(0.60)
+OUT
+OUT
COM
COM
-OUT
-OUT
ψ
1.00
1.00
(0.04)
(0.04)
Printed Face
Printed Face
8.50
(0.33)
8.50
(0.33)
Date Code
Date Code
50.80 46.42
(2.00) (1.83)
B7-1205D10M LF
IN=9~18Vdc
OUT=±5Vdc/±1A
20.32
20.32
(0.8)
(0.8)
Bottom View
Bottom View
15.24
15.24
(0.60)
(0.60)
+IN -IN
+IN -IN
34.66
34.66
34.66
(1.36)
(1.36)
(1.36)
5.00
5.00
(0.20)
(0.20)
Pb
-
IN
+
Top View
10.165.0810.16
10.165.0810.16
(0.40)(0.2)(0.40)
(0.40)
(0.2)(0.40)
5.08
5.08
(0.20)
(0.20)
Units : mm (inch)
Tolerance : 0.xx ± 0.25 (0.xx ± 0.01)
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