SANKEN SI

●SI-3000N Series
SI-3000N Series
3-Terminal, Full-Mold, Low Dropout Voltage Dropper Type
■Features
•
•
•
•
Compact full-mold package (equivalent to TO220)
Output current: 1.0A
Low dropout voltage: VDIF≤1V (at IO=1.0A)
Built-in foldback overcurrent, overvoltage, thermal protection circuits
■Applications
• For stabilization of the secondary stage of switching power supplies
• Electronic equipment
■Absolute Maximum Ratings
Parameter
(Ta=25°C)
Ratings
Symbol
SI-3050N
SI-3150N
30
35
DC Input Voltage
VIN
DC Output Current
IO
1.0*2
A
PD1
14(With infinite heatsink)
W
Power Dissipation
25
Unit
SI-3090N/3120N
V
PD2
1.5(Without heatsink, stand-alone operation)
W
Junction Temperature
Tj
–40 to +125
°C
Ambient Operating Temperature
Top
–30 to +100
°C
Tstg
–40 to +125
°C
Thermal Resistance (junction to case)
Rth(j-c)
7.0
°C/W
Thermal Resistance (junction to ambient air)
Rth(j-a)
Storage Temperature
16
66.7(Without heatsink, stand-alone operation)
°C/W
●SI-3000N Series
■Electrical Characteristics
(Ta=25°C unless otherwise specified)
Ratings
Parameter
Symbol
SI-3050N
min.
Input Voltage
Output Voltage
VO
SI-3000NA
SI-3090N
max.
min.
15*2
10*3
6*3
VIN
SI-3000N *1
typ.
typ.
SI-3120N
max.
min.
20*2
13*3
8.64
9.00
9.36
11.52
12.00
12.48
14.40
15.00
15.60
5.10
8.82
9.00
9.18
11.76
12.00
12.24
14.70
15.00
15.30
VIN=8V, IO=0.5A
VIN=12V, IO=0.5A
0.5
VIN=15V, IO=0.5A
0.5
1.0
Conditions
Conditions
1.0
Conditions
18
64
VIN=13 to 25V, IO=0.5A
93
180
VIN=12V, IO=0 to 1.0A
30
VIN=16 to 27V, IO=0.5A
240
VIN=15V, IO=0 to 1.0A
120
300
±1.0
±1.5
±1.5
VIN=12V, IO=5mA, Tj=0 to 100°C
VIN=15V, IO=5mA, Tj=0 to 100°C
VIN=18V, IO=5mA, Tj=0 to 100°C
54
54
54
54
VIN=8V, f=100 to 120HZ
VIN=12V, f=100 to 120HZ
VIN=15V, f=100 to 120HZ
VIN=18V, f=100 to 120HZ
3
10
3
VIN=8V, IO=0A
1.2
Conditions
1.2
VIN=8V
10
3
VIN=12V, IO=0A
10
3
VIN=15V, IO=0A
1.2
VIN=12V
mV/°C
dB
10
mA
VIN=18V, IO=0A
1.2
VIN=15V
mV
VIN=18V, IO=0 to 1.0A
±0.5
Iq
V
90
VIN=8V, IO=5mA, Tj=0 to 100°C
Conditions
IS1
24
70
100
V
mV
48
VIN=10 to 20V, IO=0.5A
RREJ
Starting Current*4,5
30
VIN=8V, IO=0 to 1.0A
Conditions
Overcurrent Protection
1.0
40
∆VO/∆Ta
Current
0.5
VIN=6 to 15V, IO=0.5A
∆VOLOAD
Quiescent Circuit
0.5
IO≤1.0A
10
V
VIN=18V, IO=0.5A
IO≤0.5A
∆VOLINE
Ripple Rejection
27*2
5.20
1.0
of Output Voltage
16*3
Unit
max.
5.00
Conditions
Temperature Coefficient
25*2
typ.
5.00
VDIF
Load Regulation
min.
4.90
Conditions
Line Regulation
SI-3150N
max.
4.80
Conditions
Dropout Voltage
typ.
A
VIN=18V
*1: "A" may be indicated to the right of the Sanken logo.
*2: VIN(max) and IO(max) are restricted by the relation PD(max)=(VIN-VO)•IO=14(W).
*3: Refer to the dropout voltage.(Refer to Setting DC Input Voltage on page 7.)
*4: IS1 is specified at –5(%) drop point of output voltage VO on the condition that VIN=VO+3V, IO=0.5A.
*5: A foldback type overcurrent protection circuit is built into the IC regulator. Therefore, avoid using it for the following applications as it may cause
starting errors:
(1) Constant current load (2) Plus/minus power (3) Series power (4) VO adjustment by raising ground voltage
■Outline Drawing
(unit: mm)
4.2±0.2
10±0.2
2.8±0.2
7.9±0.2
4±0.2
0.5
16.9±0.3
φ 3.2±0.2
a
2max.
b
2.6±0.15
(13.5)
0.95±0.15
0.85+0.2
–0.1
q GND
w VO
e VIN
+0.2
P3.4±0.1×2=6.8
q
w
a. Part Number
b. Lot Number
0.45 –0.1
Plastic Mold Package Type
Flammability: UL94V-0
Weight: Approx. 2.3g
e
17
●SI-3000N Series
■Block Diagram
Tr1
3
2
VREF
Amp.
Protection
Drive
Reg.
MIC
1
■Standard External Circuit
D1
C0
*1 C1
C2
*2
3
DC Input
VIN
2
SI-3000N
+ *1
C1
+
1
C2
■Ta-PD Characteristics
Power Dissipation PD (W)
15
Infinite heatsink
With Silicon Grease
Heatsink: Aluminum
20
0×
20
10
10
0×
2m
0×
10
m
0×
75
5
m
×7
5×
(5.
°C
/W
2°
2m
m
(2
.3
2m
)
C/
(7.
W
6°C
)
/W
)
Without heatsink
0
–30
0
25
50
75
Ambient Temperature Ta (°C)
PD=IO•[VIN(mean)–VO]
18
100
C0 DC Output
VO
*2 D1
: Output capacitor (47 to 100µF)
: Oscillation prevention capacitor
(C1: Approx. 47µF, C2: 0.33µF)
These capacitors are required if the input line is
inductive and in the case of long wiring. Tantalum
capacitors are recommended for C1 and C0, particularly
at low temperatures.
: Protection diode
This diode is required for protection against reverse
biasing of the input and output. Sanken EU2Z is
recommended.
●SI-3000N Series
■Typical Characteristics
(Ta=25°C)
Temperature Coefficient of Output Voltage(SI-3050N)
5.00
4.98
4.96
0.8
1.0
4.94
–40 –20
20
40
60
6
4
2
4
6
8
10
12
14
16
8V
4
10V
3
2
0
0
A
=0
5
6
Overcurrent Protection Characteristics(SI-3120N)
10
8
22V
6
4
2
0.2
0.4
0.6
0.8
1.0
1.2
Output Current IO (A)
Input Voltage VIN (V)
4
12
1
2
3
N=
IO=0A
=0.5A
=1.5A
2
14
15
10
1
VI
5
0.5A
0.75A
Input Voltage VIN (V)
Output Voltage VO (V)
12
0
0
0
0
80 100 120 140
Overcurrent Protection Characteristics(SI-3050N)
6
Output Voltage VO (V)
Output Voltage VO (V)
Rise Characteristics(SI-3120N)
14
8
0
Ambient Temperature Ta (°C)
12V
0.6
V
0.4
Output Current IO (A)
=6
V
0.2
2
1
VIN
0
0
3
V
0.1
0.25A
4
18
0.2
5.02
V
15
V
0.3
5
IO
0.4
VIN=8V
IO =0A
VO =5V
1.
0A
5.04
13
0.5
Rise Characteristics(SI-3050N)
6
Output Voltage VO (V)
5.06
Output Voltage VO (V)
Dropout Voltage VDIF (V)
IO vs. VDIF Characteristics
0.6
1.4
1.6
0
0
0.5
1.0
1.5
2.0
Output Current IO (A)
Thermal Protection Characteristics(SI-3050N)
6
Output Voltage VO (V)
5
4
VIN=8V
IO=10mA
3
2
1
0
0
20
60
100
140
180
Case Temperature TC (°C)
Note on Thermal Protection:
The thermal protection circuit is intended for protection against heat during instantaneous shortcircuiting. Its operation is not guaranteed for shortcircuiting over extended periods of time.
19