SI3122V [SANKEN]
3-Terminal, Low Dropout Voltage Dropper Type; 3 ，终端，低压差电压滴管式
| 型号： | SI3122V |
| 厂家： | 
SANKEN ELECTRIC |
| 描述： | 3-Terminal, Low Dropout Voltage Dropper Type |
| 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-3000V Series
SI-3000V Series
3-Terminal, Low Dropout Voltage Dropper Type
■Features
• TO-3P package 3-terminal regulator
• Output current: 2.0A
• Low dropout voltage:VDIF≤1V (at IO=2.0A)
• Built-in foldback overcurrent protection circuit
■Applications
• For stabilization of the secondary stage of switching power supplies
• Electronic equipment
■Absolute Maximum Ratings
(Ta=25°C)
Ratings
Parameter
Symbol
Unit
SI-3052V
25
SI-3122V/3152V
30
DC Input Voltage
VIN
IO
V
A
DC Output Current
Power Dissipation
2.0
PD1
PD2
Tj
50(TC=25°C)
W
1.6(Without heatsink, stand-alone operation)
W
Junction Temperature
–30 to +125
–20 to +100
–30 to +125
2.0
°C
°C
°C
°C/W
Ambient Operating Temperature
Storage Temperature
Top
Tstg
Rth(j-c)
Thermal Resistance (junction to case)
■Electrical Characteristics
(Ta=25°C)
Ratings
Parameter
Symbol
SI-3052V
typ.
SI-3122V
SI-3152V
typ.
unit
min.
6
max.
15
min.
13
typ.
max.
25
min.
16
max.
25
Input Voltage
VIN
V
V
VO
4.9
5.0
5.1
11.8
12.0
12.2
14.8
15.0
15.2
Output Voltage
Conditions
VDIF
VIN=8V, IO=1.0A
VIN=16V, IO=1.0A
VIN=20V, IO=1.0A
0.5
1.0
30
0.5
1.0
60
0.5
1.0
60
Conditions
IO=1.0A
Dropout Voltage
V
Conditions
∆VOLINE
Conditions
∆VOLOAD
Conditions
∆VO/∆Ta
RREJ
IO=2.0A
20
10
20
Line Regulation
Load Regulation
mV
mV
VIN=6 to 15V, IO=1.0A
VIN=13 to 25V, IO=1.0A
80 200
VIN=16 to 25V, IO=1.0A
80 200
40
100
VIN=8V, IO=0 to 2.0A
VIN=16V, IO=0 to 2.0A
VIN=20V, IO=0 to 2.0A
Temperature Coefficient of Output Voltage
±0.5
+1.5
54
±1.5
mV/°C
54
54
Ripple Rejection
dB
Conditions
IS1
f=100 to 120HZ
Overcurrent Protection
Starting Current
2.4
2.4
2.4
A
Conditions
VIN=8V
VIN=16V
VIN=20V
The following are also available:SI-3522V(5.2V), SI-3062V(6V), SI-3082V(8V), SI-3922V(9.2V), SI-3102V(10V), SI-3132V(13.1V), SI-3182V(18V),
SI-3202V(20V).
62
●SI-3000V Series
■Outline Drawing
(unit:mm)
15.6±0.3
13.6±0.2
9.6±0.2
4.8max.
2.0max.
Part Number
Lot Number
φ
Plastic Mold Package Type (TO-3P)
Flammability: UL94V-0
+0.2
–0.1
Weight: Approx. 6g
2.0
3.0
+0.2
–0.1
Terminal Connections
+0.2
–0.1
+0.2
1.05
0.65
1.7
–0.1
+0.2
–0.3
5.45±0.1
5.45±0.1
15.8±0.2
q Output
w Input (backside of case)
e Ground
q
w
e
■Block Diagram
Tr
1
3
2
R1
R4
R2
M
1
R5
R3
1
63
●SI-3000V Series
■Standard External Circuit
C1: Oscillation prevention capacitor (approx. 0.33µF)
Connection to terminal No.3 must be made as short as
possible.
D1
C2: Output capacitor (47 to 100µF)
Connection to terminal No.2 must be made as short as
possible.
VO
VIN
D1: Protection diode (RM1Z)
3
SI-3000V
1
2
Required for protection against reverse biasing of input and
output.
DC input
DC output
+
–
C2
C1
Note 1: Prevention of oscillation at low temperatures
At low temperatures, oscillation may occur unless an
output capacitor with good tanδ is used. Be sure to
connect a tantalum capacitor (approx. 10µF) in paral-
lel with output capacitor C2.
Note 2:An isolation type diode is provided from input to ground
and also from output to ground. These may be de-
stroyed if the device is reverse biased. In this case,
use a diode with low VF to protect them.
Note 3: The output voltage may not be adjusted by raising the
ground voltage (using a diode or resistor).
■Ta-PD Characteristics
Without Mica
With Silicon Grease
24
200×200×2 (2.3°C/W)
Heatsink: Aluminum
Unit: mm
20
16
12
8
100×100×2 (5.2°C/W)
75×75×2 (7.6°C/W)
4
Without heatsink
0
–20
0
25
50
75
100
Ambient Temperature T
a
(°C)
64
●SI-3000V Series
■Typical Characteristics
(Ta=25°C)
IO vs. VDIF Characteristics
Temperature Coefficient of Output Voltage(SI-3052V)
Circuit Current(SI-3052V)
0.8
0.6
0.4
0.2
0
5.06
5.04
5.02
5.00
4.98
4.96
4.94
70
V
IN=8V
VO=5V
l
O=1V
60
50
40
30
20
10
0
lo=2.0A
1.5A
1.0A
0
0.5
1.0
1.5
2.0
–60 –40 –20
0
20 40 60 80 100 120 140
0
5
10
15 17.5
Output Current l
O
(A)
Ambient Temperature Ta (°C)
Input Voltage VIN (V)
Rise Characteristics(SI-3052V)
Rise Characteristics(SI-3122V)
Rise Characteristics(SI-3152V)
18
6
16
16
14
12
10
8
14
12
10
8
5
4
3
2
1
0
6
6
4
4
2
2
0
0
0
2
4
6
8
10 12
14 16
0
2
4
6
8
10 12 14 16 18
0
1
2
3
4
5
6
7
Input Voltage VIN (V)
Input Voltage VIN (V)
Input Voltage VIN (V)
Overcurrent Protection Characteristics(SI-3052V)
Overcurrent Protection Characteristics(SI-3122V)
16
Overcurrent Protection Characteristics(SI-3152V)
18
16
14
12
10
8
6
14
12
10
8
5
4
3
2
1
0
10V
8V
6
6
4
4
2
2
0
0
0
0
1
2
3
4
5
6
7
1
2
3
4
5
(A)
6
7
0
1
2
3
4
5
6
7
Output Current lo (A)
Output Current l
O
Output Current lo (A)
65
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