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BA7810CP-E2 Datasheet(Hoja de datos) 9 Page - Rohm

No. de Pieza. BA7810CP-E2
Descripción  1A Output 78 series Regulators 500mA Output 78 series Regulators
Descarga  13 Pages
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Fabricante  ROHM [Rohm]
Página de inicio  http://www.rohm.com
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 9 page
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BA78□□Series,BA78M□□Series
Technical Note
9/12
www.rohm.com
2012.03 - Rev.C
© 2012 ROHM Co., Ltd. All rights reserved.
Internal Circuit Structural Diagram
TO220CP-3
TO252-3
PIN No.
Symbol
Function
PIN No.
Symbol
Function
1
INPUT
Input terminal
1
INPUT
Input terminal
2
COMMON
Ground terminal
2
N.C.
Non connection terminal
3
OUTPUT
Output terminal
3
OUTPUT
Output terminal
FIN
COMMON
Ground terminal
Protection Circuit
(1)Over-current protection circuit
(2) Thermal shutdown circuit
(3) Safety operation area control circuit
Q5
R4
R10
R5
R6
R7
R8
Q8
R9
Q9
R13
Q17
Q16
Q15
Q13
Q10
Q6
Q18
Q14
Q1
Q7
Q2
R21
R17
R20
R12
R19
Q11
Q3
R14
R3
R18
R1
R15
R11
C1
D2
D1
Q12
R2
D3
INPUT
OUTPUT
COMMON
R22
Q4
R16
FIN
12 3
When the chip temperature of IC exceeds the setting temperature, the IC goes
OFF, and it controls the IC not to be destroyed by the heat generation.
It can be restored by being lowered the chip temperature of IC below the
setting temperature.
It controls the output current in inverse proportion ratio to voltage difference
(input-output).
When voltage difference becomes bigger, the IC will be destroyed in rush current.
It protects the IC by controlling the current ability according to the voltage level.
When the maximum rating current or more is rushed, it controls the
current ability and protects the IC from destruction.
6
Chip Junction temperature : Tj [℃]
175
50
25
Vin=10V
BA7805CP
75 100 125 150
200
5
4
3
2
1
0
2
1
Vin=10V
BA7805CP
6
5
4
3
2
1
0
Output Current : IO[A]
Input-Output voltage difference: Vin-Vo [V]
30
20
40
2
0
10
1.5
1
0.5
Tj=25℃
BA7805CP




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