92
■Features
• Integrated switching IC and coil construction
• Requires 2 external components only
• Low switching noise
• Heatsink not required
■Applications
• Telephone power supplies
• Onboard local power supplies
■Lineup
Self Oscillating Switching Type with Coil
Symbol
VIN
PD
Tj
Tstg
Symbol
VIN
IO
Top
SI-8200L/8300L Series
Unit
V
W
°C
°C
■Recommended Operating Conditions
■Absolute Maximum Ratings
Parameter
DC Input Voltage Range
Output Current Range
Operating Temperature Range
Parameter
DC Input Voltage
Power Dissipation
Junction Temper ature
Storage Temperature
Part Number SI-8201L SI-8203L SI-8211L SI-8213L SI-8301L
VO(V) 5 12 5 12 5
IO(A) 0.4 0.35 0.3 0.28 1.0
Ratings
SI-8201L/8203L SI-8211L/8213L SI-8301L
45 60 45
1.5 1.17 3.0
+100
–25 to +85
Ratings
SI-8201L SI-8203L SI-8211L SI-8213L SI-8301L
10 to 40 16 to 40 15 to 55 22 to 55 8 to 40
0 to 0.4 0 to 0.35 0 to 0.3 0 to 0.28 0 to 1.0
–10 to +65 –10 to +85
Unit
V
A
°C
●SI-8200L/8300L Series
93
■Electrical Characteristics (Ta=25°C)
a. Part Number
b. Lot Number
Open Air Type
Weight: Approx. 5.1g
Unit
V
%
kHZ
mV
mV
mV/°C
mVp-p
SI-8201L•8203L SI-8211L•8213L
a. Part Number
b. Lot Number
Open Air Type
Weight: Approx. 5.9g
a. Part Number
b. Lot Number
Open Air Type
Weight: Approx. 14.5g
SI-8301L
,,,
,,,,
,,,,,
,,,,,
,,,,
,,
q
y
t
!0V
IN
V
O
0.8max.
L
IN
GND
(10.16) (7.62) (2.19)(2.17)
14.5
±0.5
12
±0.5
13.2
±0.6
10
±0.2
47
±0.6
φ
ab
Terminal 1 marking
y
qwe
r
SK
V
IN
V
O
NC GND
L
IN
18
3.7
26
±0.1
26
±0.1
0.6 418
2
φ
a
b
Terminal 1 marking
Parameter
Output V oltage
Efficiency
Switching Frequency
Line Regulation
Load Regulation
Temperature Coefficient of Output Voltage
Switching Ripple
Voltage (C2=470µF)
Symbol
VO
Conditions
η
Conditions
f
∆VOLINE
Conditions
∆VOLOAD
Conditions
∆VO/∆Ta
∆Vr
Conditions
Ratings
SI-8201L SI-8203L SI-8211L SI-8213L SI-8301L
min. typ. max. min. typ. max. min. typ. max. min. typ. max. min. typ. max.
4.9 5.0 5.1 11.8 12.0 12.2 4.9 5.0 5.1 11.8 12.0 12.2 5.0 5.1 5.2
V
IN
=15V, I
O
=0.2A V
IN
=25V, I
O
=0.2A V
IN
=35V, I
O
=0.2A V
IN
=38V, I
O
=0.2A V
IN
=15V, I
O
=0.5A
73 79 63 78 73
V
IN
=15V, I
O
=0.2A V
IN
=25V, I
O
=0.2A V
IN
=35V, I
O
=0.2A V
IN
=38V, I
O
=0.2A V
IN
=15V, I
O
=0.5A
25 25 25 25 25
15 60 15 60 60 60 50
VIN=10 to 20V, IO=0.2A VIN=16 to 34V, IO=0.2A VIN=20 to 50V, IO=0.2A VIN=22 to 50V, IO=0.2A VIN=10 to 20V, IO=0.5A
15 60 60 100 60 60 80
V
IN
=15V, I
O
=0.02 to 0.25A V
IN
=25V, I
O
=0.02 to 0.3A V
IN
=35V, I
O
=0.02 to 0.3A V
IN
=38V, I
O
=0.02 to 0.28A
V
IN
=15V, I
O
=0.3 to 0.7A
±1.5 ±1.5 ±1.5 ±1.5 ±1.5
30 60 60 100 30 60 50 100 45
V
IN
=25V, I
O
=0.3A V
IN
=40V, I
O
=0.35A V
IN
=48V, I
O
=0.3A V
IN
=48V, I
O
=0.28A V
IN
=15V, I
O
=0.5A
●SI-8200L/8300L Series
■Outline Drawing (unit: mm)
q
y
t
!0VIN
VO
LIN
GND
20.5max.
20.5max.
13.5max.5.5 13
15
10.1 6 67.655
2
2
0.8
φ
ab
Terminal 1 marking
94
SI-8201L•8203L/SI-8301L SI-8211L•8213L
■Block Diagram
■Standard External Circuit
V
IN
Vref
L
IN
L
1
D
I
T
r1
V
O
GND
Amp.
Drive
V
IN
Vref
L
IN
L
1
DI
Tr1
Tr2
V
O
GND
Amp. Drive
V
IN
GND
SI-8200L
V
IN
GND
L
IN
++
C
1
220µFC
2
470µF
GND
V
O
V
O
DC Input
V
IN
V
IN
NC GND
SI-8300L
GNDGND
L
IN
++
C
1
470µFC
2
470µF
V
O
V
O
DC Input
■Ta-PD Characteristics
VO:Output voltage
IO:Output current
ηχ :Efficiency (%)
The efficiency depends on the input
voltage and the output current. Thus,
obtain the value from the efficiency
graph and substitute the percentage
in the formula above.
PD=VO•IO 100 –1
ηχ
1.5
1.0
0.5
0025 50 75 100
Power Dissipation P
D
(W)
Ambient Temperature T
a
(°C)
SI-8201L
8203L
SI-8211L
8213L
■Caution
1. A low-impedance capacitor suitable f or switching applications must be used for the external capacitor and must be connected as close to the
IC as possible in order to assure low ripple voltage and stable switching operation.
2. The SI-8200L and 8300L series do not have a built-in overcurrent protection circuit. Thus, avoid short-circuit conditions that may cause an
overcurrent.
3. The SI-8300L series may not start up if the input voltage rises too rapidly.
Do not use the SI-8300L series in applications where the input terminal, pin6, is opened and closed directly in a state where the input v oltage
is already applied.
4. Terminals LIN and NC in the connection diagram must be left unconnected to other circuits.
5. The IC's metalic heatsink is electrically floating. Do not connect it to GND or any other circuit.
6. Since the SI-8200L and 8300L series hav e an open-package construction, they can only be used in specific en vironments. Verify the oper ating
environment and use the IC within the conditions indicated in the reliability data.
●SI-8200L/8300L Series
3.0
2.0
1.0
0025 50 75 100
Power Dissipation P
D
(W)
Ambient Temperature T
a
(°C)
SI-8301L
95
■Typical Characteristics
SI-8213L SI-8301L
Rise Characteristics Rise Characteristics
Efficiency Characteristics Efficiency Characteristics
0 5 10 15 20
Input Voltage V
IN
(V)
Output Voltage V
O
(V)
14
12
10
8
6
4
2
0
I
O
=0.28A (C.C)
l
O
=0A
R
L
=43Ω
0 0.1 0.2 0.3 0.4
Output Current lO (A)
Efficiency η (%)
90
80
70
60
50
40
30
20
0
V
IN
=22V
48V
55V
30V
38V
0 5 10 15 20
Input Voltage V
IN
(V)
Output Voltage Vo (V)
7
6
5
4
3
2
1
0
I
O
=1A (C.C)
l
O
=0A
R
L
=5.1Ω
0 0.3 0.4 0.50.1 0.2 0.70.6 0.9 1.00.8 1.1
Output Current l
O
(A)
Efficiency η (%)
90
80
70
60
50
40
30
20
0
V
IN
=8V
20V
30V
40V
SI-8201L SI-8203L SI-8211L
Rise Characteristics Rise Characteristics Rise Characteristics
Efficiency Characteristics Efficiency Characteristics Efficiency Characteristics
0 5 10 15 20
Input Voltage V
IN
(V)
Output Voltage V
O
(V)
6
5
4
3
2
1
0
I
O
=0.4A (C.C)
l
O
=0A
R
L
=12.5Ω
0
0
0.100.05 0.20 0.25 0.300.15 0.35 0.40 0.45
Output Current l
O
(
A
)
Efficiency η (%)
80
70
60
50
40
30
20
10
V
IN
=
10V
15V
20V
25V
30V
35V
40V
0 5 10 15 20
Input Voltage VIN (V)
Output Voltage VO (V)
14
12
10
8
6
4
2
0
I
O
=0.35A (C.C)
l
O
=0A
R
L
=34.3Ω
0 0.1 0.2 0.3 0.4
Output Current l
O
(A)
Efficiency η (%)
90
80
70
60
50
40
30
20
0
V
IN
=16V
40V
20V
35V
30V
25V
6
5
4
3
2
1
0
I
O
=0.3A (C.C)
l
O
=0A
RL=16.7Ω
0 5 10 15 20
Input Volta
g
e V
IN
(
V
)
Output Voltage V
O
(V)
0 0.1 0.2 0.3 0.4
80
70
60
50
40
30
20
10
0
Output Current l
O
(
A
)
Efficiency η (%)
V
IN
=15V
25V
35V
45V
55V
(Ta=25°C)
●SI-8200L/8300L Series