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PDF SI-3025B Data sheet ( Hoja de datos )
| Número de pieza | SI-3025B | |
| Descripción | 5-Terminal/ Multi-Function/ Full-Mold/ Low Dropout Voltage Dropper Type | |
| Fabricantes | Sanken electric | |
| Logotipo |  |
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qSI-3000B Series
SI-3000B Series
5-Terminal, Multi-Function, Full-Mold, Low Dropout Voltage Dropper Type
sFeatures
• Compact full-mold package (equivalent to TO220)
• Output current: 0.27A
• Low dropout voltage: VDIF≤0.5V (at IO=0.27A)
• 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, thermal protection circuits
• Highly accurate overcurent protection starting current
SI-3157B : 0.3 to 0.7A (VIN=18V)
SI-3025B : 0.3 to 0.7A (When VIN=18V, setting VO=15.7V)
0.3 to 0.75A (When VIN=18V, setting VO=11.7V)
• Variable output voltage type (SI-3025B) also available
sApplications
• For BS and CS antenna power supplies
• Electronic equipment
sAbsolute Maximum Ratings
Paarameter
DC Input Voltage
Voltage of Output Control Terminal
DC Output Current
Power Dissipation
Junction Temperature
Ambient Operating Temperature
Storage Temperature
Thermal Resistance (junction to case)
Thermal Resistance (junction to ambient air)
Symbol
VIN
VC
IO
PD1
PD2
Tj
Top
Tstg
Rth(j-c)
Rth(j-a)
Ratings
35
VIN
0.27*1
14(With infinite heatsink)
1.5(Without heatsink, stand-alone operation)
–40 to +125
–30 to +100
–40 to +125
7.0
66.7(Without heatsink, stand-alone operation)
(Ta=25°C)
Unit
V
V
A
W
W
°C
°C
°C
°C/W
°C/W
28
1 page  
qSI-3000B Series
sTypical Characteristics (When setting VO=15.7V for SI3025B)
(Ta=25°C)
IO vs. VDIF Characteristics
0.5
0.4
Temperature Coefficient of Output Voltage(SI-3157B)
16.0
15.9
VIN=18V
lO=0A
15.8
0.3 15.7
0.2 15.6
15.5
0.1
15.4
Rise Characteristics(SI-3157B)
20
15
lO=0A
0.1A
10 0.2A
0.27A
5
00 0.05 0.1 0.15 0.2 0.25 0.3
Output Current IO (A)
15.–340 –20 0 20 40 60 80 100 120 140
Ambient Temperature TC (°C)
0
0 5 10 15 20 25 30
Input Voltage VIN (V)
Line Regulation
16.1
15.9
15.7
15.5
lO=0A
0.1A
0.2A
0.27A
15.3
15.1
14.9
14
16 18 20 22 24 26
Input Voltage VIN (V)
28
Load Regulation
16.1
15.9
15.7
15.5
15.3
15.1
VIN=27V
25V
22V
18V
16.5V
14.9
0
0.05 0.1 0.15 0.2 0.25 0.3
Output Current IO (A)
Overcurrent Protection Characteristics(SI-3157B)
20
15
10
18V 25V
22V
5
00 0.1 0.2 0.3 0.4 0.5 0.6 0.7
Output Current IO (A)
Output ON/OFF Control
20
VIN=18V
lO=0A
15
10
Thermal Protection Characteristics
20
15
VIN=18V
lO=10mA
10
55
00 1
23
4
Output ON/OFF Control VC (V)
00 20 40 60 80 100 120 140 160 180
Case Temperature TC (°C)
Note on Thermal Protection:
The thermal protection circuit is intended for pro-
tection against heat during instantaneous short-
circuiting. Its operation is not guaranteed for short-
circuiting over extended periods of time.
32
5 Page | ||
| Páginas | Total 5 Páginas | |
| PDF Descargar | [ Datasheet SI-3025B.PDF ] | |
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