SANKEN SI

●SI-3000J Series
SI-3000J Series
5-Terminal, Multi-Function, Full-Mold, Low Dropout Voltage Dropper Type
■Features
•
•
•
•
•
Compact full-mold package (equivalent to TO220)
Output current: 2.0A
Low dropout voltage: VDIF≤1V (at IO=2.0A)
Variable output voltage (rise only) May be used for remote sensing
Output ON/OFF control terminal is compatible with LS-TTL. (It may be
directly driven by LS-TTL or standard CMOS logic.)
• 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-3050J
VIN
Voltage of Output Control Terminal
VC
VIN
V
DC Output Current
IO
2.0*1
A
PD1
20(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
5.0
°C/W
Junction Temperature
Thermal Resistance (junction to case)
Rth(j-c)
Thermal Resistance (junction to ambient air)
Rth(j-a)
46
30
Unit
SI-3120J/3150J
DC Input Voltage
Power Dissipation
25
SI-3090J
35
66.7(Without heatsink, stand-alone operation)
V
°C/W
●SI-3000J Series
■Electrical Characteristics
(Ta=25°C unless otherwise specified)
Ratings
Parameter
Symbol
SI-3050J
min.
Input Voltage
Output Voltage
VIN
6*2
VO
4.90
Conditions
typ.
SI-3090J
max.
min.
15*1
10*2
5.10
8.82
5.00
VIN=8V, IO=1.0A
VDIF
Dropout Voltage
typ.
SI-3120J
max.
min.
25*1
13*2
9.18
11.76
9.00
VIN=12V, IO=1.0A
0.5
0.5
1.0
1.0
Load Regulation
Temperature Coefficient
of Output Voltage
Ripple Rejection
10
40
Current
Iq(off)
Conditions
Overcurrent Protection
Starting Current*3,5
IS1
14.70
15.00
15.30
0.5
0.5
1.0
1.0
18
48
VIN=10 to 20V, IO=1.0A
100
70
24
64
VIN=13 to 25V, IO=1.0A
180
93
30
90
240
120
300
±0.5
±1.0
±1.5
±1.5
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
54
54
54
54
VIN=12V, f=100 to 120HZ
VIN=15V, f=100 to 120HZ
VIN=18V, f=100 to 120HZ
3
10
3
0.5
10
3
VIN=12V, IO=0A
1.0
VIN=8V, IO=0A, VC=0.4V
2.1
0.5
1.0
VIN=12V, IO=0A, VC=0.4V
2.1
VIN=8V
0.5
3
1.0
2.1
0.5
10
1.0
2.1
A
VC. IH
VC. IL
0.8
0.8
0.8
0.8
Control Current
VC
*4
Terminal (Output ON)
IC. IH
20
20
20
20
–0.3
–0.3
IC. IL
Conditions
2.0
2.0
V
VC=2.7V
–0.3
–0.3
mA
VIN=18V
Control Voltage (Output OFF)
Conditions
mA
VIN=18V, IO=0A, VC=0.4V
VIN=15V
2.0
dB
VIN=18V, IO=0A
VIN=15V, IO=0A, VC=0.4V
VIN=12V
2.0
10
VIN=15V, IO=0A
mV
mV/°C
VIN=8V, f=100 to 120HZ
VIN=8V, IO=0A
mV
VIN=16 to 25V, IO=1.0A
Control Voltage (Output ON)
(Output OFF)
V
V
VIN=18V, IO=0 to 2.0A
Conditions
Control Current
V
VIN=18V, IO=1.0A
VIN=15V, IO=0 to 2.0A
Iq
Conditions
12.24
27*1
VIN=12V, IO=0 to 2.0A
RREJ
Quiescent Circuit
16*2
Unit
max.
VIN=8V, IO=0 to 2.0A
∆VO/∆Ta
Conditions
30
VIN=6 to 15V, IO=1.0A
∆VOLOAD
Conditions
27*1
typ.
IO≤2.0A
∆VOLINE
Conditions
min.
IO≤1.5A
Conditions
Conditions
12.00
SI-3150J
max.
VIN=15V, IO=1.0A
Conditions
Line Regulation
typ.
µA
mA
VC=0.4V
*1: VIN(max) and IO(max) are restricted by the relation PD(max)=(VIN-VO)•IO=20(W).
*2: Refer to the dropout voltage.(Refer to Setting DC Input Voltage on page 7.)
*3: IS1 is specified at –5(%) drop point of output voltage VO on the condition that VIN=VO+3V, IO=0.5A.
*4: Output is ON even when output control terminal VC is open. Each input level is equivalent to LS-TTL. Therefore, it may be directly driven by an
LS-TTL circuit.
*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
47
●SI-3000J Series
■Outline Drawing
(unit:mm)
φ 3.2±0.2
4.2±0.2
±0.2
2.8
Part Number
Lot Number
(2.0)
±0.15
0.95
+0.2
0.45 –0.1
P1.7±0.7×4=6.8±0.7
q
w
e
r
t
(8.0)
(4.6)
+0.2
0.85 –0.1
Plastic Mold Package Type
Flammability: UL94V-0
Weight: Approx. 2.3g
5.0±0.6
2.6±0.1
(17.9)
16.9±0.3
4.0±0.2
7.9±0.2
0.5
10.0±0.2
3.9±0.7
GND
VC
VO
VOS
VIN
(4.3)
8.2±0.7
Forming No. 1101
1 2 3 4 5
■Block Diagram
SI-3000J
Tr1
5
3
VREF
2
4
Amp.
Drive
Protection
Reg.
ON/OFF
MIC
Equivalent
to LS-TTL
1
■Standard External Circuit
D1
*2
5
+
DC Input
VIN
48
OPEN
*1
C1
C2
C0
*1 C1
C2
3
SI-3000J
2
4
1
+
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-3000J Series
■Ta-PD Characteristics
Power Dissipation PD (W)
25
Infinite heatsink
20
15
10
With Silicon Grease: G746
(SHINETSU CHEMICAL
INDUSTRIES)
Heatsink: Aluminum
200×200×2mm (2.3°C/W)
100×100×2mm (5.2°C/W)
75×75×2mm (7.6°C/W)
5
Without heatsink
0
–30
0
25
50
75
100
Ambient Temperature Ta (°C)
PD=IO•[VIN(mean)–VO]
49
●SI-3000J Series
External Variable Output Voltage Circuit
1. Variable output voltage with a single external resistor
VIN
VO
5
+
SI-3000J
OPEN
2
47µF
25
3
1
IREX
4
REX
V04
15
-3
SI
47µF
0J
20
GND
Output Voltage VO (V)
The output voltage may be increased by inserting resistor REX between
terminals No.4 (sensing terminal) and No.3 (output terminal). The current IREX flowing into terminal No.4 is 1mA (typ.), therefore the adjusted
output voltage VOUT is:
VO=V04+IREX•REX *V04: output voltage of SI-3000J series
However, the built-in resistor (between terminals No. 4 and No.1) is a
semiconductor resistor, which has approximately thermal characteristics of +0.2%/°C.
It is important to keep the thermal characteristics in mind when adjusting the output voltage.
0J
09
-3
SI
15
0J
05
-3
SI
10
5
2. Variable output voltage with two external resistors
VIN
12
-3
SI
GND
0
2
4
6
8
External Resistor REX (kΩ)
10
VO
5
+
3
SI-3000J
OPEN
2
47µF
1
IREX1
4
REX1
V04
+
25
47µF
I4IN
REX2
VIN=VO+1V
GND
GND
*V04: Output voltage of SI=3000J series
S: Stability coefficient of I4IN (may be set to any value)
Note: In the SI-3000J series, the output voltage increase can be adjusted as mentioned above. However, when the rise is set to approximately 10V compared to output voltage V04, the necessary
output current may not be obtained due to the S.O.A. protection
circuit in the SI-3000J series.
Output Voltage VO (V)
0J
15 Ω
-3 .75k
I
S =3
X2
RE
0J
12
-3 kΩ
SI X2=3
RE
20
The output voltage may be increased by inserting resistors REX1 between terminals No.4 (sensing terminal) and No.3 (output terminal) and
REX2 between terminals No.4 and No.1 (ground terminal).
The current I4IN flowing into terminal No.4 is 1mA (typ.) so the thermal
characteristics may be improved compared to the method shown in 1
by setting the external current IREX1 at approximately 5 times the value
of I4IN (stability coefficient S=5).
The adjusted output voltage VOUT in this case is:
VO=V04+REX1•IREX1
IREX1=S•I4IN
The value of the external resistors may be obtained as follows:
VO-V04
V04
REX1=
REX2=
S•I4IN ,
(S-1)•I4IN
50
0J
VIN=VO+1V
+
J
90 5kΩ
-30 .2
SI X2=2
RE
15
0J kΩ
05 .25
-3
SI X2=1
RE
10
5
0
1.0
External Resistor REX1 (kΩ)
2.0
●SI-3000J Series
■Typical Characteristics
(Ta=25°C)
IO vs. VDIF Characteristics
Temperature Coefficient of Output Voltage(SI-3050J)
Circuit Current(SI-3050J)
50
5.02
VIN=8V
lO=0A
0.6
0.4
Ground Current IG (mA)
0.8
Output Voltage VO (V)
Dropout Voltage VDIF (V)
1.0
5.00
40
30
20
lO=2A
1.5A
1A
10
0.2
0.5A
0A
0.5
1
1.5
2
4.98
–40 –20
Output Current IO (A)
Quiescent Circuit Current(SI-3050J)
VC=0V
0.3
0.2
Output Voltage VO (V)
0.4
0.1
60
5
10
10
15
Rise Characteristics(SI-3120J)
5
12
10
4
lO=0A
0.5A
1A
1.5A
2A
3
2
lO=0A
0.5A
1A
1.5A
2A
8
6
4
2
1
2
3
4
5
6
7
8
Input Voltage VIN (V)
Overcurrent Protection Characteristics(SI-3050J)
5
Input Voltage VIN (V)
14
0
0
15
6
0
0
5
10
15
20
Input Voltage VIN (V)
Overcurrent Protection Characteristics(SI-3120J)
14
27V
25V
10
2
1
8
V
3
18
15V
6V
4
Output Voltage VO (V)
8V
12V
10V
22V 3V
1
15V
12
5
0
0
0
0
80 100 120 140
6
Input Voltage VIN (V)
Output Voltage VO (V)
40
1
0
0
6
4
2
1.0
2.0
3.0
0
0
4.0
1.0
Output Current IO (A)
2.0
3.0
4.0
Output Current IO (A)
ON/OFF Control Characteristics(SI-3050J)
Thermal Protection(CharacteristicsSI-3050J)
6
6
VIN=8V
lO=10mA
VIN=8V
lO=10mA
5
5
Output Voltage VO (V)
Output Voltage VO (V)
20
Rise Characteristics(SI-3050J)
0.5
Quiescent Circuit Current Iqoff (mA)
0
Ambient Temperature Ta (°C)
Output Voltage VO (V)
0
0
4
3
2
1
4
3
2
Note on Thermal Protection:
1
The thermal protection circuit is intended for pro0
0
1.0
2.0
3.0
4.0
5.0
Output ON/OFF Control Voltage VC (V)
0
0
20
60
100
140
Case Temperature TC (°C)
180
tection against heat during instantaneous shortcircuiting. Its operation is not guaranteed for shortcircuiting over extended periods of time.
51