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PDF KA7809E Data sheet ( Hoja de datos )
| Número de pieza | KA7809E | |
| Descripción | 3-Terminal 1A Positive Voltage Regulator | |
| Fabricantes | Fairchild Semiconductor | |
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April 2015
KA78XXE / KA78XXAE
3-Terminal 1 A Positive Voltage Regulator
Features
• Output Current up to 1 A
• Output Voltages of 5, 6, 8, 9, 10, 12, 15, 18, 24 V
• Thermal Overload Protection
• Short-Circuit Protection
• Output Transistor Safe Operating Area Protection
Description
The KA78XXE / KA78XXAE series of three-terminal posi-
tive regulators is available in the TO-220 / D-PAK pack-
age 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. 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 external components for adjustable voltages
and currents.
TO-220 (Dual Gauge)
GND
D-PAK
GND
Block Diagram
INPUT
1
STARTING
CIRCUIT
CURRENT
GENERATOR
REFERENCE
VOLTAGE
1. Input
1
1 2. GND
3. Output
SERIES
PASS
ELEMENT
SOA
PROTECTION
ERROR
AMPLIFIER
OUTPUT
3
THERMAL
PROTECTION
© 2006 Fairchild Semiconductor Corporation
KA78XXE / KA78XXAE Rev. 1.9
Figure 1. Block Diagram
GND
2
www.fairchildsemi.com
1 page  
Electrical Characteristics (KA7806E)
Refer to test circuit, -40°C < TJ < 125°C, IO = 500 mA, VI = 11 V, CI = 0.33 μF, CO = 0.1 μF, unless otherwise specified.
Symbol
Parameter
Conditions
Min. Typ. Max. Unit
VO Output Voltage
Regline Line Regulation(5)
Regload Load Regulation(5)
IQ
ΔIQ
ΔVO/ΔT
VN
RR
VDrop
RO
ISC
IPK
Quiescent Current
Quiescent Current
Change
Output Voltage Drift(6)
Output Noise Voltage
Ripple Rejection(6)
Dropout Voltage
Output Resistance(6)
Short-Circuit Current
Peak Current(6)
TJ = +25°C
5.0 mA IO 1.0 A, PO
VI = 8.0 V to 21 V
15 W,
5.75
5.70
6.00
6.00
6.25
6.30
V
TJ = +25°C
VI = 8 V to 25 V
VI = 9 V to 13 V
5.0 120.0
mV
1.5 60.0
TJ = +25°C
IO = 5 mA to 1.5 A
IO = 250 mA to 750 mA
9 120
mV
3 60
TJ = +25°C
5 8 mA
IO = 5 mA to 1 A
VI = 8 V to 25 V
0.5
mA
1.3
IO = 5 mA
-0.8 mV/°C
f = 10 Hz to 100 kHz, TA = +25°C
45 μV
f = 120 Hz, VI = 9 V to 19 V
59 75
dB
IO = 1 A, TJ = +25°C
2V
f = 1 kHz
19 mΩ
VI = 35 V, TA= +25°C
TJ = +25°C
250 mA
2.2 A
Notes:
5. 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.
6. These parameters, although guaranteed, are not 100% tested in production.
© 2006 Fairchild Semiconductor Corporation
KA78XXE / KA78XXAE Rev. 1.9
5
www.fairchildsemi.com
5 Page 
Electrical Characteristics (KA7818E)
Refer to test circuit, -40°C < TJ < 125°C, IO = 500 mA, VI = 27 V, CI = 0.33 μF, CO = 0.1 μF, unless otherwise specified.
Symbol
Parameter
Conditions
Min. Typ. Max. Unit
VO Output Voltage
Regline Line Regulation(17)
Regload Load Regulation(17)
IQ
ΔIQ
ΔVO/ΔT
VN
RR
VDrop
RO
ISC
IPK
Quiescent Current
Quiescent Current
Change
Output Voltage Drift(18)
Output Noise Voltage
Ripple Rejection(18)
Dropout Voltage
Output Resistance(18)
Short-Circuit Current
Peak Current(18)
TJ =+25°C
5.0 mA ≤ IO ≤ 1.0 A, PO ≤ 15 W,
VI = 21 V to 33 V
TJ = +25°C
VI = 21 V to 33 V
VI = 24 V to 30 V
TJ = +25°C
IO = 5 mA to 1.5 A
IO = 250 mA to 750 mA
TJ =+25°C
IO = 5 mA to 1.0 A
VI = 21 V to 33 V
IO = 5 mA
f = 10 Hz to 100 kHz, TA = +25°C
f = 120 Hz, VI = 22 V to 32 V
IO = 1 A, TJ= +25°C
f = 1 kHz
VI = 35 V, TA = +25°C
TJ = +25°C
17.3
17.1
53
18.0
18.0
15
5
15
5
5.2
-1
110
69
2
22
250
2.2
18.7
18.9
V
360
mV
180
360
mV
180
8.0 mA
0.5
mA
1.0
mV/°C
μV
dB
V
mΩ
mA
A
Notes:
17. 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.
18. These parameters, although guaranteed, are not 100% tested in production.
© 2006 Fairchild Semiconductor Corporation
KA78XXE / KA78XXAE Rev. 1.9
11
www.fairchildsemi.com
11 Page | ||
| Páginas | Total 28 Páginas | |
| PDF Descargar | [ Datasheet KA7809E.PDF ] | |
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