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LH25-10B05 Datasheet(PDF) 4 Page - MORNSUN Science& Technology Ltd.

Part # LH25-10B05
Description  LH series ----is a compact size power converter offered by Mornsun.
Download  8 Pages
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Manufacturer  MORNSUN [MORNSUN Science& Technology Ltd.]
Direct Link  http://www.mornsun-power.com
Logo MORNSUN - MORNSUN Science& Technology Ltd.

LH25-10B05 Datasheet(HTML) 4 Page - MORNSUN Science& Technology Ltd.

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The copyright and authority for the interpretation of the products are reserved by MORNSUN
Specifications subject to change without notice
LH05-25
A/3-2012
Page 4 of 8
PARALLEL LINES MEASURE
AC-DC
+Vo
-Vo
FU SE
L
N
2 5 . 4 mm
25 .4 mm
C1
C2
1 2 . 7 mm
C o ppe r s he et
C on n e c t
Osc illog r a p h P robe
L o ad
L
N
C1: 1
μF (ceramic capacitor)
C2: 10
μF (electrolytic capacitor)
TYPICAL EFFICIENCY CURVE
Vin=230Vac
50
55
60
65
70
75
80
85
90
95
10
20
30
40
50
60
70
80
90 100
Load(%)
LH05-10B05
LH05-10B24
LH10-10B05
LH10-10B24
LH15-10B05
LH15-10B24
LH20-10B05
LH20-10B24
Load=100%
70
72
74
76
78
80
82
84
86
88
90
85
120
240
264
Input voltage (Vac)
LH05-10B05
LH05-10B24
LH10-10B05
LH10-10B24
LH15-10B05
LH15-10B24
LH20-10B05
LH20-10B24
INPUT VOLTAGE VS LOAD
TEMPERATURE VS LOAD
100
240
85
264
20
40
100
60
80
75
Load(%)
Input voltage(Vac)
*Note: When input DC,
Vdc=1.414*Vac-20
.
-40
-10
55
70
100
80
60
40
20
43.75
Temperature(℃)
Load(%)
TRIM APPLICATION & TRIM CALCULATION
Application circuit for TRIM
(Part in broken line is the interior of models)
0V
R2
R1
R3
Vref
RT
Trim
+Vot
0V
R2
R1
R3
Vref
RT
Trim
+Vot
Trim up
Trim down
Formula for resistance of Trim
up:
a=
Vr ef
Vot- Vr ef
R1
R=
T
aR2
R -a
2
-R3
down:
a=
Vref
Vot- Vr ef
R2
R=
T
aR1
R -a
1
-R3
Note: Value for R1, R2, R3, and Vref refer to the following table.
RT: Resistance of Trim
a: User-defined parameter, no actual meanings.
Vo(V)
Resistance
3.3
5
9
12
15
24
48
R1(K
Ω)
2
3.3
7.5
3.8
3
7.5
8.6
6
1.2
R2(K
Ω)
1.2
3.3
2.8
7
1
1.5
1
22
R3(K
Ω)
1
1
1
1
1
1
1.2
Vref(V)
1.2
4
2.5
2.5
2.5
2.5
2.5
2.5
Vot(V)
Output voltage of Trim, variation
≤ ±10%
TYPICAL APPLICATIONS
L
+Vo
-Vo
L
N
N
C2
C1
T VS1 RL
NTC
FUSE
Figure 1: LH**-10B**( Single Output)
F U SE
+Vo
L
N
-Vo
N
Com
C4
C2
C1
C3
RL
T VS1
T VS 2 RL
N TC
L
Figure 2:LH**-10A**(Dual Output)
+
-
C1
C4
C3
C2
-
Vo1
Vo2
T VS1
T VS2
RL
RL
FU SE
L
N
N
N TC
+
L
Figure 3:LH**-10D**(Isolate Twin Output)
Vo1
-Vo2
C om
C6
C2
C5
C1
+
-
+Vo2
T VS1
T VS3
RL
RL
C4
C3
TVS2
RL
N
N
FU SE
L
N TC
L
Figure 4:LH**-10C**(Triple Output)


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