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KA7812A 데이터시트 PDF




Fairchild에서 제조한 전자 부품 KA7812A은 전자 산업 및 응용 분야에서
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부품번호 KA7812A 기능
기능 3-Terminal 1A Positive Voltage Regulator
제조업체 Fairchild
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KA7812A 데이터시트, 핀배열, 회로
www.fairchildsemi.com
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




KA7812A pdf, 반도체, 판매, 대치품
KA78XX/KA78XXA
Electrical Characteristics (KA7808/KA7808R)
(Refer to test circuit ,0°C < TJ < 125°C, IO = 500mA, VI =14V, CI= 0.33µF, CO=0.1µF, unless otherwise specified)
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
VO/T
VN
RR
VDrop
rO
ISC
IPK
Conditions
TJ =+25 oC
5.0mA IO 1.0A, PO 15W
VI = 10.5V to 23V
TJ =+25 oC
VI = 10.5V to 25V
VI = 11.5V to 17V
TJ =+25 oC
IO = 5.0mA to 1.5A
IO= 250mA to
750mA
TJ =+25 oC
IO = 5mA to 1.0A
VI = 10.5A to 25V
IO = 5mA
f = 10Hz to 100KHz, TA =+25 oC
f = 120Hz, VI= 11.5V to 21.5V
IO = 1A, TJ=+25 oC
f = 1KHz
VI= 35V, TA =+25 oC
TJ =+25 oC
KA7808
Min. Typ. Max.
7.7 8.0 8.3
Unit
7.6 8.0 8.4
V
- 5.0 160
mV
- 2.0 80
- 10 160
mV
- 5.0 80
- 5.0 8.0 mA
- 0.05 0.5
mA
- 0.5 1.0
- -0.8 - mV/ oC
- 52 - µV/Vo
56 73 -
dB
-2-
V
- 17 - m
- 230 -
mA
- 2.2 -
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.
4

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KA7812A 전자부품, 판매, 대치품
KA78XX/KA78XXA
Electrical Characteristics (KA7812/KA7812R)
(Refer to test circuit ,0°C < TJ < 125°C, IO = 500mA, VI =19V, CI= 0.33µF, CO=0.1µF, unless otherwise specified)
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
Conditions
VO
Regline
Regload
IQ
IQ
VO/T
VN
RR
VDrop
rO
ISC
IPK
TJ =+25 oC
5.0mA IO1.0A, PO15W
VI = 14.5V to 27V
TJ =+25 oC
VI = 14.5V to 30V
VI = 16V to 22V
TJ =+25 oC
TJ =+25 oC
IO = 5mA to 1.5A
IO = 250mA to 750mA
IO = 5mA to 1.0A
VI = 14.5V to 30V
IO = 5mA
f = 10Hz to 100KHz, TA =+25 oC
f = 120Hz
VI = 15V to 25V
IO = 1A, TJ=+25 oC
f = 1KHz
VI = 35V, TA=+25 oC
TJ = +25 oC
KA7812/KA7812R
Min. Typ. Max.
11.5 12 12.5
Unit
11.4 12 12.6
V
- 10 240
mV
- 3.0 120
- 11 240
mV
- 5.0 120
- 5.1 8.0 mA
- 0.1 0.5
mA
- 0.5 1.0
- -1
- mV/ oC
- 76 - µV/Vo
55 71 -
dB
-2
- 18
- 230
- 2.2
-
-
-
-
V
m
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.
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