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Número de pieza | KA7810A | |
Descripción | 3-Terminal 1A Positive Voltage Regulator | |
Fabricantes | Fairchild | |
Logotipo | ||
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KA78XX/KA78XXA
3-Terminal 1A Positive Voltage Regulator
Features
• Output Current up to 1A
• Output Voltages of 5, 6, 8, 9, 10, 12, 15, 18, 24V
• Thermal Overload Protection
• Short Circuit Protection
• Output Transistor Safe Operating Area Protection
Description
The KA78XX/KA78XXA series of three-terminal positive
regulator are available in the TO-220/D-PAK 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, making it essentially indestructible. If adequate
heat sinking is provided, they can deliver over 1A output
current. Although designed primarily as fixed voltage
regulators, these devices can be used with external
components to obtain adjustable voltages and currents.
TO-220
Internal Block Digram
1
D-PAK
1
1. Input 2. GND 3. Output
©2001 Fairchild Semiconductor Corporation
Rev. 1.0.0
1 page KA78XX/KA78XXA
Electrical Characteristics (KA7809/KA7809R)
(Refer to test circuit ,0°C < TJ < 125°C, IO = 500mA, VI =15V, CI= 0.33µF, CO=0.1µF, unless otherwise specified)
Parameter
Symbol
Conditions
Output Voltage
Line Regulation (Note1)
Load Regulation (Note1)
Quiescent Current
Quiescent Current Change
Output Voltage Drift
Output Noise Voltage
Ripple Rejection
Dropout Voltage
Output Resistance
Short Circuit Current
Peak Current
VO
Regline
Regload
IQ
∆IQ
∆VO/∆T
VN
RR
VDrop
rO
ISC
IPK
TJ =+25 oC
5.0mA≤ IO ≤1.0A, PO ≤15W
VI= 11.5V to 24V
TJ=+25 oC
VI = 11.5V to 25V
VI = 12V to 17V
TJ=+25 oC
TJ=+25 oC
IO = 5mA to 1.5A
IO = 250mA to 750mA
IO = 5mA to 1.0A
VI = 11.5V to 26V
IO = 5mA
f = 10Hz to 100KHz, TA =+25 oC
f = 120Hz
VI = 13V to 23V
IO = 1A, TJ=+25 oC
f = 1KHz
VI= 35V, TA =+25 oC
TJ= +25 oC
KA7809
Min. Typ. Max.
8.65 9 9.35
Unit
8.6 9 9.4
V
- 6 180
mV
- 2 90
- 12 180
mV
- 4 90
- 5.0 8.0 mA
- - 0.5
mA
- - 1.3
- -1 - mV/ oC
- 58 - µV/Vo
56 71 -
dB
-2-
- 17 -
- 250 -
- 2.2 -
V
mΩ
mA
A
Note:
1. 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.
5
5 Page KA78XX/KA78XXA
Electrical Characteristics (KA7805A)
(Refer to the test circuits. 0oC < TJ < +125 oC, Io =1A, V I = 10V, C I=0.33µF, C O=0.1µF, unless otherwise speci-
fied)
Parameter
Output Voltage
Line Regulation (Note1)
Load Regulation (Note1)
Quiescent Current
Quiescent Current
Change
Output Voltage Drift
Output Noise Voltage
Ripple Rejection
Dropout Voltage
Output Resistance
Short Circuit Current
Peak Current
Symbol
VO
Regline
Regload
IQ
∆IQ
∆V/∆T
VN
RR
VDrop
rO
ISC
IPK
Conditions
TJ =+25 oC
IO = 5mA to 1A, PO ≤ 15W
VI = 7.5V to 20V
VI = 7.5V to 25V
IO = 500mA
VI = 8V to 12V
TJ =+25 oC
VI= 7.3V to 20V
VI= 8V to 12V
TJ =+25 oC
IO = 5mA to 1.5A
IO = 5mA to 1A
IO = 250mA to 750mA
TJ =+25 oC
IO = 5mA to 1A
VI = 8 V to 25V, IO = 500mA
VI = 7.5V to 20V, TJ =+25 oC
Io = 5mA
f = 10Hz to 100KHz
TA =+25 oC
f = 120Hz, IO = 500mA
VI = 8V to 18V
IO = 1A, TJ =+25 oC
f = 1KHz
VI= 35V, TA =+25 oC
TJ= +25 oC
Min.
4.9
4.8
Typ.
5
5
Max.
5.1
5.2
Unit
V
- 5 50
- 3 50 mV
- 5 50
- 1.5 25
- 9 100
- 9 100 mV
- 4 50
- 5.0 6.0 mA
- - 0.5
- - 0.8 mA
- - 0.8
- -0.8 - mV/ oC
- 10 - µV/Vo
- 68 -
-2 -
- 17 -
- 250 -
- 2.2 -
dB
V
mΩ
mA
A
Note:
1. Load and line regulation are specified at constant junction temperature. Change in VO due to heating effects must be taken
into account separately. Pulse testing with low duty is used.
11
11 Page |
Páginas | Total 28 Páginas | |
PDF Descargar | [ Datasheet KA7810A.PDF ] |
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