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KA78XX 数据表(PDF) 8 Page - Fairchild Semiconductor

部件名 KA78XX
功能描述  3-Terminal 1A Positive Voltage Regulator
Download  28 Pages
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制造商  FAIRCHILD [Fairchild Semiconductor]
网页  http://www.fairchildsemi.com
标志 FAIRCHILD - Fairchild Semiconductor

KA78XX 数据表(HTML) 8 Page - Fairchild Semiconductor

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KA78XX/KA78XXA
8
Electrical Characteristics (KA7815)
(Refer to test circuit ,0°C < TJ < 125°C, IO = 500mA, VI =23V, CI= 0.33
µF, CO=0.1µF, unless otherwise specified)
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.
Parameter
Symbol
Conditions
KA7815
Unit
Min.
Typ. Max.
Output Voltage
VO
TJ =+25
oC
14.4
15
15.6
5.0mA
≤ IO≤1.0A, PO≤15W
VI = 17.5V to 30V
14.25
15
15.75
V
Line Regulation (Note1)
Regline
TJ =+25
oC
VI = 17.5V to 30V
-
11
300
mV
VI = 20V to 26V
-
3
150
Load Regulation (Note1)
Regload
TJ =+25
oC
IO = 5mA to 1.5A
-
12
300
mV
IO = 250mA to 750mA
-
4
150
Quiescent Current
IQ
TJ =+25
oC-
5.2
8.0
mA
Quiescent Current Change
∆IQ
IO = 5mA to 1.0A
-
-
0.5
mA
VI = 17.5V to 30V
-
-
1.0
Output Voltage Drift
∆VO/∆TIO = 5mA
-
-1
-
mV/ oC
Output Noise Voltage
VN
f = 10Hz to 100KHz, TA =+25
oC-
90
-
µV/Vo
Ripple Rejection
RR
f = 120Hz
VI = 18.5V to 28.5V
54
70
-
dB
Dropout Voltage
VDrop
IO = 1A, TJ=+25
oC-
2
-
V
Output Resistance
rO
f = 1KHz
-
19
-
m
Short Circuit Current
ISC
VI = 35V, TA=+25
oC
-
250
-
mA
Peak Current
IPK
TJ =+25
oC-
2.2
-
A


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