SANKEN SI

●SI-3001N Series
SI-3001N Series
3-Terminal, Full-Mold, Low Dropout Voltage Dropper Type
■Features
•
•
•
•
Compact full-mold package (equivalent to TO220)
Output current: 1.5A
Low dropout voltage: VDIF≤1V (at IO=1.5A)
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-3051N/3091N
VIN
DC Output Current
IO
1.5*2
A
PD1
18(With infinite heatsink)
W
PD2
1.5(Without heatsink, stand-alone operation)
W
Tj
–40 to +125
°C
Ambient Operating Temperature
Top
–30 to +100
°C
Storage Temperature
Tstg
–40 to +125
°C
Thermal Resistance (junction to case)
Rth(j-c)
5.5
°C/W
Thermal Resistance (junction to ambient air)
Rth(j-a)
Junction Temperature
20
35
Unit
SI-3241N
DC Input Voltage
Power Dissipation
35
SI-3121N/3151N
45
66.7(Without heatsink, stand-alone operation)
V
°C/W
●SI-3001N Series
■Electrical Characteristics
(Ta=25°C unless otherwise specified)
Ratings
Parameter
Symbol
Input Voltage
VO
SI-3001NA
SI-3091N
SI-3121N
typ. max. min.
typ. max. min.
6*3
30*2
10*3
30*2
13*3
30*2
30*2
5.20
8.64
9.00
9.36
11.52 12.00 12.48 14.40 15.00 15.60 23.04 24.00 24.96
5.00
5.10
8.82
9.00
9.18
11.76 12.00 12.24 14.70 15.00 15.30 23.52 24.00 24.48
VIN=8V, IO=1.0A
VIN=12V, IO=1.0A
0.5
VIN=15V, IO=1.0A
0.5
1.0
V
VIN=27V, IO=1.0A
0.5
0.5
0.5
1.0
1.0
1.0
V
IO≤1.5A
Conditions
10
30
VIN=6V to 15V, IO=1.0A
∆VOLOAD
40
Conditions
18
48
24
64
30
90
48
128
mV
VIN=10V to 20V, IO=1.0A VIN=13V to 25V, IO=1.0A VIN=16V to 27V, IO=1.0A VIN=25V to 38V, IO=1.0A
100
70
180
93
240
120
300
120
300
VIN=8V, IO=0 to 1.5A
VIN=12V, IO=0 to 1.5A
VIN=15V, IO=0 to 1.5A
VIN=18V, IO=0 to 1.5A
VIN=27V, IO=0 to 1.5A
±0.5
±1.0
±1.5
±1.5
±2.5
∆VO/∆Ta
of Output Voltage
VIN=18V, IO=1.0A
V
IO≤1.0A
∆VOLINE
Temperature Coefficient
40*2
5.00
1.0
Load Regulation
25*3
4.90
VDIF
Conditions
16*3
Unit
typ. max.
4.80
Conditions
Line Regulation
SI-3241N
typ. max. min.
Conditions
Dropout Voltage
SI-3151N
typ. max. min.
VIN
SI-3001N *1
Output Voltage
SI-3051N
min.
mV
mV/°C
Conditions VIN=8V, IO=5mA,Tj=0 to 100°C 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 VIN=27V, IO=5mA,Tj=0 to 100°C
RREJ
Ripple Rejection
54
Conditions
Quiescent Circuit
54
VIN=8V, f=100 to 120HZ
Iq
5
Current
Conditions
Overcurrent Protection
StartingCurrent*4,5
Conditions
IS1
1.6
5
10
VIN=12V, IO=0A
1.6
VIN=8V
54
54
dB
VIN=12V, f=100 to 120HZ VIN=15V, f=100 to 120HZ VIN=18V, f=100 to 120HZ VIN=27V, f=100 to 120HZ
10
VIN=8V, IO=0A
54
5
10
VIN=15V, IO=0A
1.6
VIN=12V
5
1.6
VIN=15V
10
VIN=18V, IO=0A
5
1.6
VIN=18V
10
mA
VIN=27V, IO=0A
A
VIN=27V
*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=18(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=1A.
*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
21
●SI-3001N Series
■Block Diagram
Tr1
3
2
VREF
Amp.
Protection
Drive
Reg.
MIC
1
■Standard External Circuit
C0
D1
*2
3
DC Input
VIN
2
SI-3001N
*1
+
C1
*1 C1
C2
+
1
C2
C0 DC Output
VO
*2 D1
■Ta-PD Characteristics
20
Power Dissipation PD (W)
Infinite heatsink
With Silicon Grease
Heatsink:Aluminum
15
200×200×2mm (2.3°C/W)
10 100×100×2mm (5.2°C/W)
75×75×2mm (7.6°C/W)
5
Without heatsink
0
–30
0
25
50
75
Ambient Temperature Ta (°C)
PD=IO•[VIN(mean)–VO]
22
100
: 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-3001N Series
■Typical Characteristics
(Ta=25°C)
IO vs. VDIF Characteristics
Temperature Coefficient of Output Voltage(SI-3051N)
0.8
Circuit Current(SI-3051N)
50
5.08
VO =5V
Output Voltage VO (V)
Dropout Voltage VDIF (V)
5.06
0.6
0.4
0.2
Ground Current IG (mA)
VIN=8V
IO =0A
VO =5V
5.04
5.02
5.00
4.98
40
30
20
IO =1.5A
1.0A
10
0.5A
0A
4.96
–40 –20
Output Current IO (A)
12
5
A
A
5
1.
3
1A
2
0
0
100 120 140
IO=0A
0.5A
1A
1.5A
6
4
0
0
7
12
15
V
Output Voltage VO (V)
5
6V
6
8
10
12
14
16
3
2
10
IO=0A
0.5A
1A
1.5A
15
10
0
0
18
10
20
30
40
Input Voltage VIN (V)
Overcurrent Protection Characteristics(SI-3121N)
14
8V
4
Overcurrent Protection Characteristics(SI-3241N)
25
8
20
Output Voltage VO (V)
Overcurrent Protection Characteristics(SI-3051N)
VIN=30V
20
Input Voltage VIN (V)
6
4
2
15V
6
V
5
10
5
25V
4
8
Rise Characteristics(SI-3241N)
13V
20
3
6
25
VIN=30V
2
4
Input Voltage VIN (V)
2
1
1
30
8
Input Voltage VIN (V)
Output Voltage VO (V)
80
10
1
0
0
60
6
4
35V
6
0.5A
40
Rise Characteristics(SI-3121N)
14
Output Voltage VO (V)
Output Voltage VO (V)
Rise Characteristics(SI-3051N)
=0
IO
20
Ambient Temperature Ta (°C)
7
4
0
27V
30V
1.5
25V
1.0
VIN=40V
0.5
Output Voltage VO (V)
0
0
15
10
5
1
2
0
0
1.0
2.0
3.0
4.0
0
0
1.0
2.0
3.0
4.0
Output Current IO (A)
Output Current IO (A)
0
0
1.0
2.0
3.0
4.0
Output Current IO (A)
Thermal Protection Characteristics(SI-3051N)
6
Output Voltage VO (V)
5
VIN=8V
IO=10mA
4
3
2
Note on Thermal Protection:
The thermal protection circuit is intended for protection against heat during instantaneous short-
1
0
20
60
100
140
Case Temperature TC (°C)
180
circuiting. Its operation is not guaranteed for shortcircuiting over extended periods of time.
23