Sanken Electric Co SI-3101S Datasheet
Dropper Type Dual Output Regulator SI-3101S
14
Features
● Single input dual output <sub output (5V/0.07A), main output (5V/0.4A)>
● Main output can be externally turned ON/OFF (with ignition switch, etc.)
<most suitable as memory backup power supply>
● Low standby current ( 0.8mA)
● Low dropout voltage 1V
●
Built-in constant current type overcurrent, overvoltage and thermal protection circuits
● TO-220 equivalent 5-terminal full-mold package
Absolute Maximum Ratings
Parameter Symbol Unit ConditionsRatings
DC input voltage
Battery reverse connection
Output control terminal voltage
Output current
CH1
CH2
Power Dissipation
Junction Temperature
Operating temperature
Storage temperature
Junction to case thermal resistance
Junction to ambient-air thermal
resistance
Electrical Characteristics
Parameter Symbol
Input voltage
VO2)
CH1
CH2
CH1
CH2
CH1
CH2
CH1
CH2
CH1
CH2
CH1
CH2
Output ON
Output OFF
Output ON
Output OFF
= (V
IN
Output voltage
Channel-channel voltage difference
(VO1—
Dropout voltage
Line regulation
Load regulation
Ripple rejection
Quiescent circuit current
Overcurrent protection
starting current
Output control voltage
Output control current
Overvoltage protection starting
voltage
Thermal protection starting
temperature
Notes:
*1. Since P
D(max)
depending on operating conditions. Refer to the Ta—P
*2. Refer to the dropout voltage.
*3. I
rating shall be the point at which the output voltage VO1 or VO2 (VIN = 14V, IO1 = 0.05A or IO2 = 0.3A)
S1
drops to –5%.
*4. Overvoltage protection circuit is built only in CH2 (V
*5. The indicated temperatures are junction temperatures.
*6. All terminals, except V
V
IN
V
INB
V
C
I
O1
I
O2
P
D1
P
D2
Tj
T
OP
Tstg
j-c
j-a
V
IN
V
O1
V
O2
V
O
V
DIF1
V
DIF2
V
O
LINE1
V
O
LINE2
V
O
LOAD1
V
O
LOAD2
R
REJ1
R
REJ2
Iq
I
(S1) 1
I
(S1) 2
V
CH
V
CL
I
CH
I
CL
V
OVP
T
TSD
– VO) • IO1+ (V
IN
IN
and GND, are open.
40
*
–13
V
IN
0.07
0.4
*
18
1.5
–40 to +125
–40 to +115
–40 to +125
5.5
66.7
6
1
*
1
V
V One minute
V
A
A
With infinite heatsink
W
Stand-alone without heatsink
W
ºC
ºC
ºC
ºC/W
Stand-alone without heatsink
ºC/W
(Tj=25ºC, VIN=14V unless otherwise specified)
Ratings
min typ max
2
635V
*
4.80 5.00 5.20 V
4.80 5.00 5.20 V
–0.3 5.30 V
10 30 mV
10 30 mV
30 70 mV
40 70 mV
54 dB
54 dB
3
*
0.1 A
3
*
0.5 A
4.2 4.5 4.8 V
3.2 3.5 3.8 V
–100 µA
4
*
35 V
5
130 ºC
*
– VO2) • I
= 18 (W), V
O2
O2
D
side).
Unit Conditions
1
*
IO=0.05A
I
O
VIN=
=
0A up to load short-circuiting
1.0 V
1.0 V
I
I
V
V
I
I
O1
O2
IN
IN
O1
O2
f=100 to 120Hz
f=100 to 120Hz
O1(max)
I
O
V
C
V
C
and I
0.8 mA
100 µA
, I
IN (max)
curve to compute the corresponding values.
=0.3A
0 to 40V, IO1 and I
0.05A
0.4A
=6 to 18V, IO=0.05A
=6 to 18V, IO=0.3A
=0 to 0.05A
=0 to 0.3A
=0A, VC=0V
=4.8V
=3.2V
O2 (max)
(Ta=25ºC)
O2
may be limited
±0.2
7.9
±0.3
(4.6)
1. V
2. V
3. GND
4. V
5. V
16.9
IN
C (on/off)
O1
O2
+0.2
–0.1
0.45
3.9
8.2
(unit: mm)
±0.2
4.2
±0.2
2.8
±0.1
2.6
(4.3)
±0.7
a: Type No.
b: Lot No.
External Dimensions
±0.2
3.2
±0.2
10.0
a
b
P1.7 • 4 = 6.8
12345
±0.7 ±0.7
0.5
±0.2
4.0
±0.15
0.95
+0.2
–0.1
0.85
(Forming No. 1101)
Equivalent Circuit Diagram
VIN
1
TSD
OVP
2
CONT
VC
DRIVE
DRIVE
OCP
ERR
OCP
ERR
DET
REF
DET
Standard Circuit Diagram
D
3
D
2
V
V
IN
1
D
1
+
C
IN
CO1 : Output capacitor (47 to 100µF, 50V)
C
: Output capacitor (47 to 100µF, 50V)
O2
*1 C
: Anti-oscillation capacitors (approx. 47µF).
IN
Tantalum capacitors are recommended, especially
2
*
D
at low temperatures.
: Protection diode.
1, D2, D3
Required as protection against reverse biasing
between input and output.
(Recommended diode: Sanken EU2Z.)
SI-3101S
2
V
C
O2
5
4
3
V
O1
GND
C
O1
(17.9)
(2.0)
±0.6
5.0
(8.0)
++
C
O2
VO1
4
5
VO2
3
GND
Line Regulation (1)
■
5.1
5.0
=
C
I=0
O2
I
5V
=
O1
0mA
50mA
70mA
Line Regulation (2)
■
(V)
(A)
5.1
C
I=0
O1
=
5V
I=
O2
0A
(V)
(A)
0.3A
5.0
0.5A
Load Regulation (1)
■
5.1
O (V)
5.0
C
I=0
O2
V=
IN
6V
=
5V
(V)
(A)
14V
22V
Output voltage VO (V)
4.9
0
0
510152025
Input voltage VIN (V)
Load Regulation (2)
■
5.1
V=
IN
6V,14V
5.0
Output voltage VO (V)
22V
4.9
0
0 0.1 0.2 0.3 0.60.4 0.5
ON/OFF Control Characteristics
■
Output current IO (A)
6
5
4
O (V)
3
V=
IN
14V, 22V
2
Output voltage V
1
OFF ON
C
I=0
O1
6V
Output voltage VO (V)
4.9
00510152025
Input voltage V IN (V)
Rise Characteristics
■
=
(V)
5V
(A)
6
5
4
O (V)
Output voltage V
Overcurrent Protection Characteristics (1)
■
100Ω
3
∞
2
71.4Ω
1
0
0102468
Input voltage V
IN (V) Input voltage VIN (V)
6
5
4
O (V)
I=0
(A)
O2
3
=
5
V
(V)
C
V =
IN
14V
22V
6V
4.5V
2
Output voltage V
1
Output voltage V
4.9
0
0102030 6040 50 70
Output current I
Circuit Current
■
10
O (mA)
I=0
O1
V
c
(A)
=
0
(V)
5
Ground current lg (mA)
0
020
51015
Overcurrent Protection Characteristics (2)
■
6
5
4
I=0
O1
3
=
V
C
4.5V
=
V
IN
(A)
5
(V)
14V
22V
6V
2
Output voltage VO (V)
1
0
0 123 4 56
Output ON/OFF control voltage VC (V)
Thermal Protection Characteristics
■
6
5
=
IN
O1 O2
I=5I
6V
(V)
=
(mA)
Overvoltage Protection Characteristics
■
4
O (V)
O (V)
3
2
Output voltage V
1
0
0 130 140 150 160
Ambient temperature Ta (ºC)
Note on Thermal Protection Characteristics:
The thermal protection circuit is intended for protection against heat
during instantaneous short-circuiting. Its operation, including reliability,
is not guaranteed for short-circuiting over an extended period of time.
Output voltage V
0
0
6
5
4
3
2
1
0
10
0.05
Output current IO (A)
=
I=5I
O1 O2
=
5V
(V)
C
0.1 0.15
(mA)
20 30 40
Input voltage V
IN (V)
VO2
VO1
0
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
Output current IO (A)
Ta—PD Characteristics
■
20
With infinite heatsink
With silicone grease G746
(Shin-Etsu Chemical)
Heatsink: aluminum
15
200 • 200 • 2mm (2.3
10
100 • 100 • 2mm (5.2
75 • 75 • 2mm (7.6ºC/W)
ºC/
W)
ºC/
W)
5
Power Dissipation PD (W)
Without heatsink
0
0--2 0--30 20 6040 80 100
Operating temperature Ta (ºC)
115
15
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