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BA03ST View Datasheet(PDF) - ROHM Semiconductor

Part Name
Description
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BA03ST Datasheet PDF : 11 Pages
1 2 3 4 5 6 7 8 9 10
Regulator ICs
Resistor
(Pin A)
BAΟΟST / BAΟΟSFP series
(Pin B) C
Transistor (NPN)
B
E
P+
N
P
N
P+
N
P substrate Parasitic elements
GND
(Pin A)
Parasitic elements
GND
N
P+
P
N
N
P substrate
Parasitic elements
GND
(Pin B)
GND
P+
N
B
Other approaching
elements
C
E
GND
Parasitic elements
The example of a simple architecture of bipolar IC
!Electrical characteristic curves
25
(1)22.0
20
(1) Infinite heat sink
(2) Alumina PCB, 100×100×2 mm2
(3) Alumina PCB, 50×50×2 mm2
(4) IC alone
15
(2)11.0
10
(3)6.5
5
(4)2.0
0 25 50 75 100 125 150
AMBIENT TEMPERATURE : Ta(˚C)
Fig. 7 Thermal derating curves
(TO220FP-5)
12.5
10
(1)10.0
(1) Infinite heat sink is used θj-c=12.5 (ºC/W)
(2) IC simple substance θj-a=125.0 (ºC/W)
7.5
5
2.5
(2)1.0
0 25 50 75 100 125 150
AMBIENT TEMPERATURE : Ta (ºC)
Fig.8 Thermal derating curves
(TO252-5)
6
VCC=10V IOUT=0
BA05ST
5
4
3
2
1
0
25 50 75 100 125 150 175 200
JUNCTION TEMPERATURE : Tj (˚C)
Fig.9 Thermal cutoff circuit
characteristics
10/11
 

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