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MS1003SH Datasheet(PDF) 20 Page - Shindengen Electric Mfg.Co.Ltd

Part # MS1003SH
Description  Control IC
PDF  41 Pages
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Manufacturer  SHINDENGEN [Shindengen Electric Mfg.Co.Ltd]
Direct Link  http://www.shindengen.co.jp/
Logo SHINDENGEN - Shindengen Electric Mfg.Co.Ltd

MS1003SH Datasheet(HTML) 20 Page - Shindengen Electric Mfg.Co.Ltd

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MS1003SH･MS1004SH
Application Note Ver.2.2
SHINDENGEN ELECTRIC MFG. CO. , LTD
20/41
10
Primary coil inductance
DP
on
DC
I
t
V
Lp
1
(max)
(min)
[H]
11
Number of turns in primary
coil
Ae
B
t
V
Np
on
DC
9
1
(max)
(min)
10
[Turn]
12
Core gap
Lp
Np
Ae
10
2
10
4
lg
[mm]
* The gap Ig must be the center gap value.
* If the Ig is 1 mm or greater, review the transformer core size and oscillation frequency and
consider a redesign.
13
Number of turns in
control output coil
1
(max)
(min)
1
(max)
(min)
1
1
1
)
1
(
)
(
on
DC
on
F
O
S
t
V
tq
t
f
V
V
Np
N
[Turn]
14
Number of turns in
non-control output coil
1
1
2
2
1
2
F
O
F
O
S
S
V
V
V
V
N
N
[Turn]
15
Number of turns in
control coil
1
1
1
F
O
FNC
NC
S
V
V
V
V
N
Nc
[Turn]
* Symbols used in formulas 13 to 15
Control output coil: Output
voltage 1
1
O
V
Output of control output coil:
Rectification diode forward
voltage
1
F
V
Non-control
output
coil:
Output voltage 2
2
O
V
Output of non-control output coil:
Rectification diode forward
voltage
2
F
V
Control coil: Output voltage 1
NC
V
Output of control coil:
Rectification diode forward
voltage
FNC
V
* If the control coil voltage VNC is not well regulated, set a lower value. To make the most of the
super standby function, set the voltage higher.
16
Primary coil sectional
area
(min)
1
(max)
(min)
3
2
f
t
V
Po
D
A
on
DC
NP
[mm
2]
17
Secondary coil sectional
area
(min)
(max)
(min)
)
(
3
)
(
1
2
f
tq
t
f
tq
D
Io
A
off
NS
[mm
2]
* We recommend a wire diameter of 0.2 mm or greater for the Nc coil to simplify calculations.
* Ae: Sectional area
of core



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