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PDF SI-3101S Data sheet ( Hoja de datos )
| Número de pieza | SI-3101S | |
| Descripción | Dropper Type Dual Output Regulator | |
| Fabricantes | Sanken electric | |
| Logotipo |  |
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Dropper Type Dual Output Regulator SI-3101S
Features
q Single input dual output <sub output (5V/0.07A), main output (5V/0.4A)>
q Main output can be externally turned ON/OFF (with ignition switch, etc.)
<most suitable as memory backup power supply>
q Low standby current ( 0.8mA)
q Low dropout voltage 1V
q Built-in constant current type overcurrent, overvoltage and thermal protection circuits
q TO-220 equivalent 5-terminal full-mold package
External Dimensions (unit: mm)
3.2 ±0.2
10.0 ±0.2
4.2 ±0.2
2.8 ±0.2
a
b
2.6 ±0.1
Absolute Maximum Ratings
Parameter
Symbol
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
VIN
VINB
VC
IO1
IO2
PD1
PD2
Tj
TOP
Tstg
j-c
j-a
Ratings
40
–13 *6
VIN
0.07 *1
0.4 *1
18
1.5
–40 to +125
–40 to +115
–40 to +125
5.5
66.7
Unit
V
V
V
A
A
W
W
ºC
ºC
ºC
ºC/W
(Ta=25ºC)
Conditions
One minute
With infinite heatsink
Stand-alone without heatsink
ºC/W Stand-alone without heatsink
0.95 ±0.15
+0.2
0.85 –0.1
P1.7 ±0.7 • 4 = 6.8±0.7
+0.2
0.45–0.1
3.9 (4.3)
8.2 ±0.7
12345
1. VIN
2. VC (on/off)
3. GND
4. VO1
5. VO2
a: Type No.
b: Lot No.
(Forming No. 1101)
Equivalent Circuit Diagram
VIN
1
OCP
VO1
4
Electrical Characteristics
Parameter
Input voltage
Output voltage
CH1
CH2
Symbol
VIN
VO1
VO2
min
6 *2
4.80
4.80
(Tj=25ºC, VIN=14V unless otherwise specified)
Ratings
typ
max
Unit
Conditions
35 *1
V
5.00 5.20 V IO=0.05A
5.00 5.20 V IO=0.3A
Channel-channel voltage difference
(VO1—VO2)
VO
–0.3
5.30
VIN=0 to 40V, IO1 and IO2
V
= 0A up to load short-circuiting
Dropout voltage
CH1
CH2
VDIF1
VDIF2
1.0 V IO1 0.05A
1.0 V IO2 0.4A
Line regulation
CH1
CH2
VO LINE1
VO LINE2
10 30 mV VIN=6 to 18V, IO=0.05A
10 30 mV VIN=6 to 18V, IO=0.3A
Load regulation
CH1
CH2
VO LOAD1
VO LOAD2
30 70 mV IO1=0 to 0.05A
40 70 mV IO2=0 to 0.3A
Ripple rejection
CH1
CH2
RREJ1
RREJ2
54
54
dB f =100 to 120Hz
dB f =100 to 120Hz
Quiescent circuit current
Overcurrent protection
starting current
CH1
CH2
Iq
I (S1) 1
I (S1) 2
0.1 *3
0.5 *3
0.8 mA IO=0A, VC=0V
A
A
Output ON
VCH
4.2
4.5
4.8
Output control voltage
Output OFF VCL 3.2 3.5 3.8
V
V
Output ON
Output control current
Output OFF
I CH
I CL
–100
100 µA VC=4.8V
µA VC=3.2V
Overvoltage protection starting
voltage
VOVP
35 *4
V
Thermal protection starting
temperature
TTSD
130 *5
ºC
TSD
OVP
2
VC
CONT
ERR
DET
REF
OCP
ERR
DET
5
VO2
3
GND
Standard Circuit Diagram
D3
VIN
D1
VC
+
CIN
D2
15
SI - 3101S
2 34
GND
VO2
VO1
+
CO1
+
CO2
CO1 :
Output capacitor (47 to 100µF, 50V)
CO2 :
Output capacitor (47 to 100µF, 50V)
*1 CIN :
Anti-oscillation capacitors (approx. 47µF).
Tantalum capacitors are recommended, especially
at low temperatures.
*2 D1, D2, D3 : Protection diode.
Required as protection against reverse biasing
between input and output.
(Recommended diode: Sanken EU2Z.)
Notes:
*1. Since PD(max) = (VIN –VO) • IO1+ (VIN –VO2) • IO2 = 18 (W), VIN (max), IO1(max) and IO2 (max) may be limited
depending on operating conditions. Refer to the Ta—PD curve to compute the corresponding values.
*2. Refer to the dropout voltage.
*3. IS1 rating shall be the point at which the output voltage VO1 or VO2 (VIN = 14V, IO1 = 0.05A or IO2 = 0.3A)
drops to –5%.
*4. Overvoltage protection circuit is built only in CH2 (VO2 side).
*5. The indicated temperatures are junction temperatures.
*6. All terminals, except VIN and GND, are open.
14
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| PDF Descargar | [ Datasheet SI-3101S.PDF ] | |
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