AN78xx/AN78xxF Series
I
Main Characteristic Curve
16
14
(1)
16
14
Voltage Regulators
Minimum input/output voltage difference V
DIF(min.)
(V)
P
D
T
a
(AN78xx series)
P
D
T
a
(AN78xxF series)
V
DIF(min.)
T
j
2.4
Power dissipation P
D
(W)
12
10
8
(3)
6
4
2
0
Power dissipation P
D
(W)
(2)
2.0
I
O
=
1A
500mA
200mA
12
(1)
1.6
10
8
(2)
1.2
20mA
6
(3)
0.8
0mA
4
2
0
0.4
(4)
0
40
80
120
160
(4)
0
40
80
120
160
0
−40
0
40
80
120
160
Ambient temperature T
a
(°C)
Ambient temperature T
a
(°C)
Junction temperature T
j
(°C)
Thermal resistance value:
R
th(j-c)
=
5°C/W (max.)
R
th(j-a)
=
65°C/W (max.)
Installation condition to heat sink
Tightening torque 6kg·cm
Heat radiation compound used
(1)
(2)
(3)
(4)
Infinite heat sink: 15.0W
5°C/W heat sink: 12.5W
15°C/W heat sink: 6.3W
Without heat sink: 1.923W
Thermal resistance value:
R
th(j-c)
=
12.2°C/W (max.)
R
th(j-a)
=
65°C/W (max.)
Installation condition to heat sink
Tightening torque 6kg·cm
Heat radiation compound used
(1) Infinite heat sink: 10.25W
(2) 5°C/W heat sink: 7.3W
(3) 15°C/W heat sink: 4.5W
(4) Without heat sink: 1.923W
Input transient response
Input voltage V
I
(V)
Output voltage fluctuation (V)
20
AN7805
15
Load transient response
AN7805
Current limiting characteristic
Load current I
O
(A)
7
6
V
I
=
10V
T
j
=
25°C
AN7805
2
1
Output voltage V
O
(V)
5
4
3
2
1
0
10
Output voltage fluctuation (mV)
0
1
10
5
0
0
−10
−1
−20
0
2
4
6
8
10
−2
0
10
20
30
40
50
0
0.6
1.2
1.8
2.4
Time t (µs)
Time t (µs)
Output current I
O
(A)
8
PANASONIC [ PANASONIC SEMICONDUCTOR ]
