ETC SI-3120C

●SI-3000C Series
SI-3000C Series
5-Terminal, Multi-Function, 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)
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 (SI-3033C: Drooping type 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-3033C
VIN
Voltage of Output Control Terminal
VC
VIN
IO
1.5*2
A
PD1
18(With infinite heatsink)
W
Power Dissipation
35
SI-3240C
DC Input Voltage
DC Output Current
20
Unit
SI-3050C/3090C SI-3120C/3150C
35
45
V
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)
5.5
°C/W
Thermal Resistance (junction to ambient air)
Rth(j-a)
66.7(Without heatsink, stand-alone operation)
°C/W
Storage Temperature
35
●SI-3000C Series
■Electrical Characteristics
(Ta=25°C unless otherwise specified)
Ratings
Parameter
Symbol
SI-3033C
min.
Input Voltage
VIN
SI-3000C *1
Output Voltage SI-3000CA
VO
*3
max.
min.
15*2
6*3
typ.
4.80
5.00
5.20
8.64
9.00
9.36
3.366
4.90
5.00
5.10
8.82
9.00
9.18
VIN=5V, IO=1.0A
VIN=8V, IO=1.0A
0.5
of Output Voltage
Ripple Rejection
Starting Current*4,6
30
VIN=4.5 to 12V, IO=1.0A
40
0.5
1.0
1.0
V
10
30
VIN=6 to 15V, IO=1.0A
100
40
18
48
100
70
180
VIN=12V, IO=0 to 1.5A
±0.5
±0.5
±1.0
∆VO/∆Ta
mV
VIN=10 to 20V, IO=1.0A
VIN=8V, IO=0 to 1.5A
mV
mV/°C
Conditions VIN=5V, IO=5mA, Tj=0 to 100°C VIN=8V, IO=5mA, Tj=0 to 100°C VIN=12V, IO=5mA, Tj=0 to 100°C
RREJ
54
54
54
VIN=5V, f=100 to 120HZ
VIN=8V, f=100 to 120HZ
VIN=12V, f=100 to 120HZ
Iq
3
IS1
10
2.0
VC. IL
0.8
IC. IH
20
IC. IL
A
2.0
V
0.8
0.8
20
20
–0.3
–0.3
VC=2.7V
–0.3
mA
VIN=12V
2.0
Conditions
10
1.6
VIN=8V
Control Voltage (Output OFF)
Conditions
5
dB
VIN=12V, IO=0A
1.6
VIN=5V
VC. IH
(Output OFF)
10
VIN=8V, IO=0A
1.6
Conditions
Control Current
5
VIN=5V, IO=0A
Control Voltage (Output ON)
VC
Control Current
Terminal*5 (Output ON)
0.5
VIN=5V, IO=0 to 1.5A
Conditions
Overcurrent Protection
V
IO≤1.5A
10
∆VOLOAD
Conditions
Quiescent Circuit Current
V
VIN=12V, IO=1.0A
IO≤1.0A
Conditions
Temperature Coefficient
30*2
3.432
∆VOLINE
Conditions
10*3
Unit
max.
3.300
1.0
Load Regulation
30*2
typ.
3.300
Conditions
Conditions
min.
3.234
VDIF
Line Regulation
SI-3090C
max.
3.168
Conditions
Dropout Voltage
SI-3050C
typ.
µA
mA
VC=0.4V
*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: 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.
*6: A foldback type overcurrent protection circuit is built into the IC regulator (excluding SI-3033C). 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
36
●SI-3000C Series
■Electrical Characteristics
(Ta=25°C unless otherwise specified)
Ratings
Parameter
Symbol
SI-3120C
min.
Input Voltage
VIN
SI-3000C *1
Output Voltage SI-3000CA
VO
SI-3150C
typ.
13*3
min.
30*2
16*3
SI-3240C
typ.
14.40
15.00
15.60
23.04
24.00
24.96
12.24
14.70
15.00
15.30
23.52
24.00
24.48
VIN=15V, IO=1.0A
VIN=18V, IO=1.0A
0.5
of Output Voltage
Ripple Rejection
Quiescent Circuit Current
93
Starting Current*4,6
90
120
48
300
VIN=18V, IO=0 to 1.5A
128
120
300
54
54
VIN=15V, f=100 to 120HZ
VIN=18V, f=100 to 120HZ
VIN=27V, f=100 to 120HZ
5
10
5
10
5
VIN=18V, IO=0A
1.6
VC. IL
0.8
IC. IH
20
10
A
2.0
V
0.8
0.8
20
20
–0.3
–0.3
VC=2.7V
–0.3
mA
VIN=27V
2.0
Conditions
dB
1.6
VIN=18V
2.0
mV/°C
VIN=27V, IO=0A
1.6
VIN=15V
mV
VIN=27V, IO=0 to 1.5A
54
VIN=15V, IO=0A
mV
VIN=25 to 38V, IO=1.0A
±2.5
Control Voltage (Output OFF)
IC. IL
30
VIN=27V, IO=5mA, Tj=0 to 100°C
VC. IH
Conditions
V
±1.5
Conditions
(Output OFF)
1.0
VIN=18V, IO=5mA, Tj=0 to 100°C
Iq
Control Current
1.0
±1.5
Control Voltage (Output ON)
Control Current
VC
Terminal*5 (Output ON)
0.5
VIN=15V, IO=5mA, Tj=0 to 100°C
RREJ
IS1
0.5
VIN=16 to 25V, IO=1.0A
240
VIN=15V, IO=0 to 1.5A
Conditions
Overcurrent Protection
64
VIN=13 to 25V, IO=1.0A
∆VO/∆Ta
Conditions
V
IO≤1.5A
24
∆VOLOAD
Conditions
V
VIN=27V, IO=1.0A
IO≤1.0A
Conditions
Temperature Coefficient
40*2
12.48
∆VOLINE
Conditions
25*3
max.
12.00
1.0
Load Regulation
30*2
Unit
typ.
12.00
Conditions
Conditions
min.
11.76
VDIF
Line Regulation
max.
11.52
Conditions
Dropout Voltage
max.
µA
mA
VC=0.4V
*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: 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.
*6: 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
37
●SI-3000C Series
■External Dimensions
(unit:mm)
φ 3.2±0.2
±0.2
4.2
±0.2
2.8
a
a. Part Number
b. Lot Number
(17.9)
16.9±0.3
4.0±0.2
7.9±0.2
0.5
10.0±0.2
b
0.95±0.15
(8.0)
(4.6)
+0.2
0.85 –0.1
+0.2
0.45 –0.1
P1.7±0.7×4=6.8±0.7
Pin Arrangement
q GND
w VC
e VO
r VOS
t VIN
5.0±0.6
(2.0)
2.6±0.1
3.9±0.7
(4.3)
8.2±0.7
Plastic Mold Package Type
Flammability: UL94V-0
Weight: Approx. 2.3g
Forming No. 1101
1 2 3 4 5
■Block Diagram
SI-3000C
Tr1
5
3
VREF
2
4
Amp.
Drive
Protection
ON/OFF
Reg.
MIC
Equivalent
to LS-TTL
1
■Standard External Circuit
D1
C0
*1 C1
C2
*2
VO
VIN
5
+
C1
GND
38
OPEN
*1
DC Input
C2
3
SI-3000C
2
4
1
+
C0 DC Output
GND
*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-3000C Series
■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
100
Ambient Temperature Ta (°C)
PD=IO•[VIN(mean)–VO]
39
●SI-3000C Series
External Variable Output Voltage Circuit
1. Variable output voltage with a single external resistor
VIN
35
VO
5
3
SI-3000C
OPEN
+
2
4
1
47µF
IREX
REX
V04
VIN=VO+1V
47µF
GND
25
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.)(SI-3033C:0.43mA (typ.)),
therefore the adjusted output voltage VOUT is:
VO=V04+IREX•REX *V04: output voltage of SI-3000C series
However, the internal 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.
Output Voltage VO (V)
GND
C
150
SI-3
20
C
120
SI-3
C
090
SI-3
15
C
050
SI-3
10
3C
SI-303
5
0
2. Variable output voltage with two external resistors
2
4
6
8
10
External Resistor REX (kΩ)
VIN
VO
5
+
3
SI-3000C
OPEN
2
47µF
1
IREX1
4
REX1
V04
+
35
47µF
I4IN
REX2
0C
324
SI- 2=6kΩ
X
E
R
VIN=VO+1V
GND
30
GND
*V04: Output voltage of SI-3000C series
S: Stability coefficient of I4IN (may be set to any value)
Note: In the SI-3000C 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-3000C series.
25
Output Voltage VO (V)
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.)(SI-3033C:
0.43mA (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
40
C
240
SI-3
30
+
C
150 Ω
SI-X32=3.75k
RE
C
120
SI-3 3kΩ
20
REX
2=
C
090 5kΩ
SI-3X2=2.2
15
RE
0C
305 5kΩ
SI- X2=1.2
RE
10
3C
SI-3013.9kΩ
5
0
REX2=
1.0
External Resistor REX1 (kΩ)
2.0
●SI-3000C Series
■Typical Characteristics
(Ta=25°C)
IO vs. VDIF Characteristics
Temperature Coefficient of Output Voltage(SI-3050C)
0.8
Circuit Current(SI-3050C)
5.08
50
VO=5V
VIN=8V
lO=0A
VO=5V
5.02
5.00
4.98
1.0
1.5
4.96
–40 –20
Output Current lO (A)
Output Voltage(SI-3033C)
0A
0
20
40
60
0
0
80 100 120 140
Output Voltage(SI-3050C)
5A
1A
1.
1
4
lO
2
3
4
5
6
Overcurrent Protection Characteristics(SI-3033C)
1A
0.5A
2
10
5
0
1
2
3
4
5
6
0
0
7
Overcurrent ProtectionCharacteristics(SI-3050C)
1
4
V
15
6V
8V
20
3
2
0.5
1.0
1.5
2.0
2.5
0
0
3.0
1.0
2.0
3.0
4.0
Output Current lO (A)
Output Current IO (A)
ON/OFF Control Characteristics(SI-3050C)
40
27V
15
10
5
1
0
30
Overcurrent Protection Characteristics(SI-3240C)
Output Voltage VO (V)
5V
=4.
5V
6V
2
20
25
VIN=30V
Output Voltage VO (V)
15V
VIN
8V
10
Input Voltage VIN (V)
5
3
lO=0A
0.5A
1A
1.5A
15
6
4
10
20
Input Voltage VIN (V)
5
Output Voltage VO (V)
5A
3
Input Voltage VIN (V)
0
A
=0
1.
0
1
8
25
5
1
0
0
6
Output Voltage(SI-3240C)
Output Voltage VO (V)
Output Voltage VO (V)
A
=0
lO
Output Voltage VO (V)
3
4
30
6
0.5A
2
Input Voltage VIN (V)
7
4
1.0A
0.5A
10
Ambient Temperature Ta (°C)
5
2
IO=1.5A
30V
0.5
20
35V
0
0
30
VIN=40V
0.2
5.04
25
V
0.4
40
Ground Current lG (mA)
Output Voltage VO (V)
Dropout Voltage VDIF (V)
5.06
0.6
0
0
1.0
2.0
3.0
4.0
Output Current lO (A)
Thermal ProtectionCharacteristics(SI-3050C)
6
6
VIN=8V
lO=1A
5
4
Output Voltage VO (V)
Output Voltage VO (V)
5
off
3
on
2
3
2
Note on Thermal Protection:
1
1
0
0
VIN=8V
lO=10mA
4
1.0
2.0
3.0
Output ON/OFF Control Voltage (V)
4.0
0
20
60
100
140
Case Temperature TC (°C)
180
The thermal protection circuit is intended for
protection against heat during instantaneous
short-circuiting. Its operation is not guaranteed for continuous heating condition such
as short-circuiting over extended periods of
time.
41