MC7809ACT Fairchild Semiconductor, MC7809ACT Datasheet - Page 21
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MC7809ACT
Manufacturer Part Number
MC7809ACT
Description
Linear Regulators - Standard Linear Regulators - Standard
Manufacturer
Fairchild Semiconductor
Datasheet
1.MC7809CT.pdf
(32 pages)
Specifications of MC7809ACT
Polarity
Positive
Number Of Outputs
1
Output Type
Fixed
Output Voltage
9 V
Output Current
1 A
Line Regulation
90 mV
Load Regulation
100 mV
Input Voltage Max
40 V
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
0 C
Package / Case
TO-220
Mounting Style
Through Hole
Voltage Regulation Accuracy
2 %
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC7809ACTG
Manufacturer:
ON Semiconductor
Quantity:
20
Part Number:
MC7809ACTG
Manufacturer:
ON/安森美
Quantity:
20 000
8.0
4.0
20
16
12
0
-50
Figure 12. Worst Case Power Dissipation versus
-25
Ambient Temperature (Case 221A)
T
0
A
q
, AMBIENT TEMPERATURE (°C)
No Heatsink
HS
q
HS
= 0°C/W
25
= 15°C/W
q
50
HS
100
= 5°C/W
40
90
80
70
60
50
80
70
60
50
40
30
Figure 14. D
Figure 15. DPAK Thermal Resistance and Maximum
0
0
75
Power Dissipation versus P.C.B. Copper Length
Power Dissipation versus P.C.B. Copper Length
q
q
T
Mounted
Vertically
MC7800, MC7800A, NCV7805
Free Air
JC
JA
J(max)
100
Vertically
Mounted
Free Air
5.0
5.0
= 5°C/W
= 65°C/W
= 150°C
Minimum
Size Pad
2
PAK Thermal Resistance and Maximum
125
L, LENGTH OF COPPER (mm)
L, LENGTH OF COPPER (mm)
http://onsemi.com
10
10
Minimum
Size Pad
150
21
R
P
15
15
P
D(max)
qJA
D(max)
R
qJA
for T
2.5
2.0
1.5
1.0
0.5
for T
0
Figure 13. Input Output Differential as a Function
-75
20
20
A
A
I
I
= 50°C
O
O
= 50°C
I
of Junction Temperature (MC78XXC, AC, B)
O
L
I
I
= 500 mA
= 200 mA
Î Î Î Î
Î Î Î Î
Î Î Î Î
Î Î Î Î
Î Î Î Î
Î Î Î Î
Î Î Î Î
Î Î Î Î
O
O
2.0 oz. Copper
L
= 20 mA
2.0 oz. Copper
= 1.0 A
= 0 mA
-50
25
25
L
L
-25
T
J
, JUNCTION TEMPERATURE (°C)
DV
- - - Extended Curve for MC78XXB
30
30
O
3.5
3.0
2.5
2.0
1.5
1.0
2.4
1.6
1.2
0.8
0.4
0
2.0
= 2% of V
0
25
O
50
75
100
125