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PDF LM7809A Data sheet ( Hoja de datos )
| Número de pieza | LM7809A | |
| Descripción | 3-Terminal 1 A Positive Voltage Regulator | |
| Fabricantes | Fairchild Semiconductor | |
| Logotipo |  |
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September 2014
LM78XX / LM78XXA
3-Terminal 1 A Positive Voltage Regulator
Features
• Output Current up to 1 A
• Output Voltages: 5, 6, 8, 9, 10, 12, 15, 18, 24 V
• Thermal Overload Protection
• Short-Circuit Protection
• Output Transistor Safe Operating Area Protection
Description
The LM78XX series of three-terminal positive regulators
is available in the TO-220 package and with several fixed
output voltages, making them useful in a wide range of
applications. Each type employs internal current limiting,
thermal shut-down, and safe operating area protection. If
adequate heat sinking is provided, they can deliver over
1 A output current. Although designed primarily as fixed-
voltage regulators, these devices can be used with exter-
nal components for adjustable voltages and currents.
TO-220 (Single Gauge)
GND
1. Input
1 2. GND
3. Output
Ordering Information(1)
Product Number
LM7805CT
LM7806CT
LM7808CT
LM7809CT
LM7810CT
LM7812CT
LM7815CT
LM7818CT
LM7824CT
LM7805ACT
LM7809ACT
LM7810ACT
LM7812ACT
LM7815ACT
Output Voltage
Tolerance
±4%
±2%
Package
TO-220
(Single Gauge)
Note:
1. Above output voltage tolerance is available at 25°C.
Operating
Temperature
Packing Method
-40°C to +125°C
Rail
0°C to +125°C
© 2006 Fairchild Semiconductor Corporation
LM78XX / LM78XXA Rev. 1.3.1
www.fairchildsemi.com
1 page  
Electrical Characteristics (LM7808)
Refer to the test circuit, -40°C < TJ < 125°C, IO = 500 mA, VI = 14 V, CI = 0.33 μF, CO = 0.1 μF, unless otherwise spec-
ified.
Symbol
Parameter
VO Output Voltage
Regline Line Regulation(6)
Regload Load Regulation(6)
IQ
ΔIQ
ΔVO/ΔT
VN
RR
VDROP
RO
ISC
IPK
Quiescent Current
Quiescent Current
Change
Output Voltage Drift(7)
Output Noise Voltage
Ripple Rejection(7)
Dropout Voltage
Output Resistance(7)
Short-Circuit Current
Peak Current(7)
Conditions
TJ = +25°C
IO = 5 mA to 1 A, PO ≤ 15 W,
VI = 10.5 V to 23 V
TJ = +25°C
VI = 10.5 V to 25 V
VI = 11.5 V to 17 V
TJ = +25°C
IO = 5 mA to 1.5 A
IO = 250 mA to 750 mA
TJ = +25°C
IO = 5 mA to 1 A
VI = 10.5 V to 25 V
IO = 5 mA
f = 10 Hz to 100 kHz, TA = +25°C
f = 120 Hz, VI = 11.5 V to 21.5 V
IO = 1 A, TJ = +25°C
f = 1 kHz
VI = 35 V, TJ = +25°C
TJ = +25°C
Min.
7.7
7.6
56
Typ.
8.0
8.0
5
2
10
5
5
0.05
0.5
-0.8
52
73
2
17
230
2.2
Max.
8.3
8.4
Unit
V
160
80
160
80
8
0.50
1.0
mV
mV
mA
mA
mV/°C
μV
dB
V
mΩ
mA
A
Notes:
6. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must
be taken into account separately. Pulse testing with low duty is used.
7. These parameters, although guaranteed, are not 100% tested in production.
© 2006 Fairchild Semiconductor Corporation
LM78XX / LM78XXA Rev. 1.3.1
5
www.fairchildsemi.com
5 Page 
Electrical Characteristics (LM7824)
Refer to the test circuit, -40°C < TJ < 125°C, IO = 500 mA, VI = 33 V, CI = 0.33 μF, CO = 0.1 μF, unless otherwise spec-
ified.
Symbol
VO
Regline
Regload
IQ
ΔIQ
ΔVO/ΔT
VN
RR
VDROP
RO
ISC
IPK
Parameter
Output Voltage
Line Regulation(18)
Load Regulation(18)
Quiescent Current
Quiescent Current
Change
Output Voltage Drift(19)
Output Noise Voltage
Ripple Rejection(19)
Dropout Voltage
Output Resistance(19)
Short-Circuit Current
Peak Current(19)
Conditions
Min.
TJ = +25°C
IO = 5 mA to 1 A, PO ≤ 15 W,
VI = 27 V to 38 V
TJ = +25°C
VI = 27 V to 38 V
VI = 30 V to 36 V
TJ = +25°C
IO = 5 mA to 1.5 A
IO = 250 mA to 750 mA
TJ = +25°C
IO = 5 mA to 1 A
VI = 27 V to 38 V
IO = 5 mA
f = 10 Hz to 100 kHz, TA = +25°C
f = 120 Hz, VI = 28 V to 38 V
IO = 1 A, TJ = +25°C
f = 1 kHz
23.00
22.80
50
VI = 35 V, TJ = +25°C
TJ = +25°C
Typ.
24.00
24.00
17
6
15
5
5.2
0.1
0.5
-1.5
120
67
2
28
230
2.2
Max.
25.00
25.25
Unit
V
480
mV
240
480
mV
240
8.0 mA
0.5
mA
1.0
mV/°C
μV
dB
V
mΩ
mA
A
Notes:
18. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must
be taken into account separately. Pulse testing with low duty is used.
19. These parameters, although guaranteed, are not 100% tested in production.
© 2006 Fairchild Semiconductor Corporation
LM78XX / LM78XXA Rev. 1.3.1
11
www.fairchildsemi.com
11 Page | ||
| Páginas | Total 24 Páginas | |
| PDF Descargar | [ Datasheet LM7809A.PDF ] | |
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