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SI-3025F Schematic ( PDF Datasheet ) - Sanken electric

Teilenummer SI-3025F
Beschreibung 5-Terminal/ Multi-Function/ Full-Mold/ Low Dropout Voltage Dropper Type
Hersteller Sanken electric
Logo Sanken electric Logo 




Gesamt 6 Seiten
SI-3025F Datasheet, Funktion
qSI-3000F Series
SI-3000F Series
5-Terminal, Multi-Function, Full-Mold, Low Dropout Voltage Dropper Type
sFeatures
• Compact full-mold package (equivalent to TO220)
• Output current: 1.0A
• Low dropout voltage: VDIF1V (at IO=1.0A)
• Variable output voltage (rise only)
May be used for remote sensing (excluding SI-3025F)
• 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
• Variable output voltage type (SI-3025F) also available
sApplications
• For stabilization of the secondary stage of switching power supplies
• Electronic equipment
sAbsolute Maximum Ratings
Parameter
Symbol
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)
VIN
VC
IO
PD1
PD2
Tj
Top
Tstg
Rth(j-c)
Rth(j-a)
Ratings
SI-3050F SI-3090F/3120F SI-3150F/3157F SI-3240F SI-3025F
25 30 35 45 30
VIN
1.0*2
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
33






SI-3025F Datasheet, Funktion
qSI-3000F Series
sTypical Characteristics
(Ta=25°C)
IO vs. VDIF Characteristics
0.6
0.5
0.4
0.3
0.2
0.1
0
0 0.2 0.4 0.6 0.8 1.0
Output Current IO (A)
Temperature Coefficient of Output Voltage(SI-3050F)
5.06
5.04
5.02
VIN=8V
IO =0A
VO =5V
5.00
4.98
4.96
4.94
–40 –20 0 20 40 60 80 100 120 140
Ambient Temperature Ta (°C)
Output ON/OFF Control(SI-3050F)
6
5
4
3
VIN=8V
IO =10mA
2
1
0
0 1.0 2.0 3.0 4.0
Output ON/OFF Control Voltage Vc (V)
Rise Characteristics(SI-3050F)
6
5
4
0.25A
3
0.5A
2 0.75A
1
0
0 12
34
56
Input Voltage VIN (V)
Rise Characteristics(SI-3120F)
14
12
10
IO=0A
8 =0.5A
=1.0A
6
4
2
00 2 4 6 8 10 12 14 16
Input Voltage VIN (V)
Overcurrent Protection Characteristics(SI-3050F)
6
5
8V
10V
4
3
2
1
00 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6
Output Current IO (A)
Overcurrent Protection Characteristics(SI-3120F)
14
12
10
8
18V
6
4
2
Overcurrent Protection Characteristics(SI-3140F)
30
VIN=27V
25 25
30
20
40V
35V
15
10
5
0
0 0.5 1.0 1.5 2.0
Output Current IO (A)
0
0 0.5 1
1.5 2
2.5 3
Output Current IO (A)
Thermal Protection Characteristics(SI-3050F)
6
5
4
VIN=8V
IO=10mA
3
2
1
00 20
60 100 140
Case Temperature Tc (°C)
180
Note on Thermal Protection:
The thermal protection circuit is intended for
protection against heat during instantaneous
short-circuiting. Its operation is not guaran-
teed for short-circuiting over extended peri-
ods of time.
38

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