SI-8050SS [SANKEN]
Switching Regulator, Voltage-mode, 3A, 60kHz Switching Freq-Max, TO-220F, 5 PIN;
| 型号： | SI-8050SS |
| 厂家： | 
SANKEN ELECTRIC |
| 描述： | Switching Regulator, Voltage-mode, 3A, 60kHz Switching Freq-Max, TO-220F, 5 PIN 开关 局域网 |
| 文件： | 总4页 (文件大小：44K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
●SI-8000E Series
SI-8000E Series
Full-Mold, Separate Excitation Switching Type
■Features
• Compact full-mold package (equivalent to TO220)
• High efficiency: 80 to 88%
• Requires only 4 external components
• Phase correction and output voltage adjustment performed internally
• Built-in reference oscillator (60kHz)
• Built-in overcurrent and thermal protection circuits
■Applications
• Power supplies for telecommunication equipment
• Onboard local power supplies
■Lineup
Part Number
VO(V)
SI-8050E
5.0
SI-8090E
9.0
SI-8120E
12.0
IO(A)
0.6
■Absolute Maximum Ratings
Parameter
Symbol
VIN
Ratings
Unit
V
DC Input Voltage
43
PD1
14(With infinite heatsink)
W
W
°C
°C
V
Power Dissipation
PD2
1.5(Without heatsink, stand-alone operation)
Junction Temperature
Tj
+125
–40 to +125
–1
Storage Temperature
Tstg
SW Terminal Applied Reverse Voltage
Thermal Resistance(junction to case)
Thermal Resistance(junction to ambient air)
VSW
Rth(j-c)
Rth(j-a)
7.0
°C/W
°C/W
66.7
■Recommended Operating Conditions
Ratings
Parameter
Symbol
Unit
SI-8050E
7 to 40
SI-8090E
11 to 40
SI-8120E
14 to 40
DC Input Voltage Range
VIN
IO
V
A
Output Current Range
0 to 0.6
Operating Junction Temperature Range
Operating Temperature Range
Tjop
Top
–30 to +125
–30 to +125
°C
°C
76
●SI-8000E Series
■Electrical Characteristics
(Ta=25°C)
Ratings
SI-8090E
typ.
Parameter
Symbol
SI-8050E
typ.
SI-8120E
typ.
Unit
min.
4.80
max.
5.20
min.
8.64
max.
9.36
min.
max.
VO
5.00
9.00
11.52
12.00
12.48
Output Voltage
Efficiency
V
Conditions
η
VIN=20V, IO=0.3A
VIN=21V, IO=0.3A
VIN=24V, IO=0.3A
80
86
88
VIN=24V, IO=0.3A
60
%
Conditions
f
VIN=20V, IO=0.3A
VIN=21V, IO=0.3A
60
VIN=20V, IO=0.3A
80
60
VIN=21V, IO=0.3A
90
Switching Frequency
Line Regulation
Load Regulation
kHZ
mV
mV
Conditions
∆VOLINE
Conditions
∆VOLOAD
Conditions
∆VO/∆Ta
RREJ
VIN=24V, IO=0.3A
100 130
100
120
VIN=10 to 30V, IO=0.3A
30 40
VIN=14 to 30V, IO=0.3A
50 80
VIN=17 to 30V, IO=0.3A
70 95
VIN=20V, IO=0.1 to 0.4A
VIN=21V, IO=0.1 to 0.4A
VIN=24V, IO=0.1 to 0.4A
Temperature Coefficient of Output Voltage
±0.5
45
±1.0
45
±1.5
45
mV/°C
Ripple Rejection
dB
Conditions
IS1
f=100 to 120HZ
0.61
f=100 to 120HZ
0.61
f=100 to 120HZ
0.61
Overcurrent Protection
Starting Current
A
Conditions
VIN=10V
VIN=14V
VIN=17V
(unit: mm)
■Outline Drawing
φ3.2±0.2
4.2±0.2
2.8±0.2
10.0±0.2
Part Number
Lot Number
Plastic Mold Package Type
2.6±0.1
Flammability: UL94V-0
Weight: Approx. 2.3g
0.95±0.15
q VIN
+0.2
–0.1
w SWOUT
e GND
r VOS
0.85
+0.2
–0.1
0.45
t N.C
P1.7±0.7×4=6.8±0.7
3.9±0.7
(4.3)
8.2±0.7
1
2 3 4 5
Forming No. 1101
77
●SI-8000E Series
■Block Diagram
■Standard External Circuit
5V : 200µH
,12V: 300µH
9V
VIN
1
2
SWOUT
L1
OCP
V
IN
V
O
2
1
Reg.
V
IN
SWOUT
OSC
Reset
Amp.
TSD
SI-8000E
Drive
D1
+
+
AK06
(Sanken)
C
100µF
1
Comp.
C2
330µF
V
OS
4
4
VOS
GND
3
NC
5
GND
GND
VREF
3
5
GND
N.C
■Ta-PD Characteristics
100
VO
PD=VO•IO
–1 –VF•IO 1–
ηχ
VIN
15
Infinite heatsink
With Silicon Grease
Heatsink: Aluminum
The efficiency depends on the input voltage and the out-
put current. Thus, obtain the value from the efficiency
graph on page 79 and substitute the percentage in the
formula above.
10
VO : Output voltage
VIN : Input voltage
IO : Output current
ηx : Efficiency (%)
VF : Diode forward voltage
0.4V(AK06)
5
Without heatsink
0
–30
0
25
50
75
100
125
Ambient Operating Temperature Ta (°C)
Thermal design for D1 must be considered separately.
■Selecting External Components
1. Inductor L1
1) It must be suited for switching regulators.
Do not use inductors as noise filters as they generate excessive heat.
2) It must have the appropriate inductance value.
If the inductance is too small (150µH or lower), abnormal oscillation may occur causing operation problems in the overcurrent protection
circuit within the rated current range.
3) The rated current must be satisfied.
If the rated current is exceeded, magnetic saturation leads to overcurrent.
2. Capacitors C1 and C2
1) They must satisfy the withstand voltage and allowable ripple current.
Exceeding the ratings of these capacitors or using them without derating shortens their service lives and may also cause abnormal
oscillation of the IC.
2) C2 must be a low-impedance type capacitor.
A low-impedance type capacitor is recommended for C2 to ensure minimum ripple voltage and stable switching operation.
3. Diode D1
The Sanken AK06 diode is recommended for D1. If you intended to use an equivalent diode, be sure to use a Schottky Barrier diode and make
sure that the reverse voltage applied to terminal 2 of the IC does not exceed the value (–1V) given in the absolute maximum ratings. If you use
a fast recovery diode or any other diode, application of a reverse voltage generated from the recovery or ON voltage of the diode may damage
the IC.
Application
Variable output voltage
Output voltage can be adjusted in the same way as SI-8000S in page 85.
78
●SI-8000E Series
■Typical Characteristics
Efficiency Characteristics(SI-8050E)
Rise Characteristics(SI-8050E)
Load Regulation(SI-8050E)
(Ta=25°C)
(Ta=25°C)
(Ta=25°C)
100
90
80
70
60
50
40
0
6
5
4
3
2
1
0
5.2
0.1A
5.1
5.0
4.9
4.8
0.3A
η
V
IN=40V
20V
10V
7V
0
2
4
6
8
10
0
0.1
0.2
0.3
0.4
0.5
0.6
0
0.1
0.2
0.3
0.4
(A)
0.5
0.6
Input Voltage VIN (V)
Output Current I
O
Output Current IO (V)
Overcurrent Protection Characteristics(SI-8050E)
(T =25°C)
Temperature Characteristics(SI-8050E)
Thermal Protection Characteristics(SI-8050E)
=20mA
a
(VIN=20V, I
O
=0.3A)
VIN=20V, IO
6
5
4
3
2
6
5
4
3
2
1
0
100
90
80
70
60
50
40
0
5.3
5.2
5.1
5.0
4.9
4.8
η
η
20V
V
O
f
1
0
4.7
0
0
0.5
1.0
1.5
2.0
0
0
50
100
150
0
50
100
150
(°C)
200
Output Current IO (V)
Ambient Temperature Ta (°C)
Case Temperature T
C
Note on Thermal Protection:
The thermal protection circuit is intended for pro-
tection against heat during instantaneous short-
circuiting.Its operation is not guaranteed for short-
circuiting over extended periods of time.
79
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