參數(shù)資料
型號: MC7808A
廠商: ON SEMICONDUCTOR
元件分類: 基準電壓源/電流源
英文描述: 1.0 A Positive Voltage Regulators
中文描述: 1.0A正電壓穩(wěn)壓器
文件頁數(shù): 14/32頁
文件大?。?/td> 270K
代理商: MC7808A
MC7800, MC7800A, NCV7805
http://onsemi.com
14
ELECTRICAL CHARACTERISTICS
(V
in
= 23 V, I
O
= 1.0 A, T
J
= T
low
to T
high
(Note 22), unless otherwise noted)
MC7815AB/MC7815AC
Characteristic
Symbol
Min
Typ
Max
Unit
Output Voltage (T
J
= 25
°
C)
Output Voltage (5.0 mA
I
O
1.0 A, P
D
15 W)
V
O
14.7
15
15.3
Vdc
V
O
14.4
15
15.6
Vdc
17.9 Vdc
V
in
30 Vdc
Line Regulation (Note 23)
Reg
line
mV
17.9 Vdc
V
in
30 Vdc, I
O
= 500 mA
20 Vdc
V
in
26 Vdc
-
8.5
20
-
3.0
22
17.5 Vdc
V
in
30 Vdc, I
O
= 1.0 A, T
J
= 25
°
C
-
7.0
20
Load Regulation (Note 23)
Reg
load
mV
5.0 mA
I
O
1.5 A, T
J
= 25
°
C
5.0 mA
I
O
1.0 A
-
1.8
25
-
1.5
25
250 mA
I
O
750 mA
-
1.2
15
Quiescent Current
I
B
-
3.5
6.0
mA
Quiescent Current Change
I
B
mA
17.5 Vdc
V
in
30 Vdc, I
O
= 500 mA
17.5 Vdc
V
in
30 Vdc, I
O
= 1.0 A, T
J
= 25
°
C
-
-
0.8
-
-
0.8
5.0 mA
I
O
1.0 A
-
-
0.5
Ripple Rejection
RR
60
80
-
dB
18.5 Vdc
V
in
28.5 Vdc, f = 120 Hz, I
O
= 500 mA
Dropout Voltage (I
O
= 1.0 A, T
J
= 25
°
C)
V
I
- V
O
-
2.0
-
Vdc
Output Noise Voltage (T
A
= 25
°
C)
V
n
-
10
-
V/V
O
10 Hz
f
100 kHz
Output Resistance f = 1.0 kHz
r
O
-
1.2
-
m
Short Circuit Current Limit (T
A
= 25
°
C)
I
SC
-
0.2
-
A
V
in
= 35 Vdc
Peak Output Current (T
J
= 25
°
C)
I
max
-
2.2
-
A
Average Temperature Coefficient of Output Voltage
TCV
O
-
-1.0
-
mV/
°
C
22.T
low
= 0
°
C for MC78XXAC, CT
=
40
°
C for MC78XXB, MC78XXAB, NCV7805
23.Load and line regulation are specified at constant junction temperature. Changes in V
O
due to heating effects must be taken into account
separately. Pulse testing with low duty cycle is used.
high
= +125
°
C for MC78XXAC, C, NCV7805
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