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參數(shù)資料
| 型號： | NCV7812BT |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | THREE-TERMINAL POSITIVE FIXED VOLTAGE REGULATORS |
| 中文描述： | 12 V FIXED POSITIVE REGULATOR, SFM3 |
| 封裝： | TO-220, 3 PIN |
| 文件頁數(shù)： | 8/32頁 |
| 文件大?。?/td> | 234K |
| 代理商： | NCV7812BT |
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MC7800, MC7800A, NCV7805
http://onsemi.com
8
ELECTRICAL CHARACTERISTICS
(V
in
= 14 V, I
O
= 1.0 A, T
J
= T
low
to T
high
(Note 11), unless otherwise noted)
MC7808AB/MC7808AC
Characteristic
Symbol
Min
Typ
Max
Unit
Output Voltage (T
J
= 25
°
C)
V
O
7.84
8.0
8.16
Vdc
Output Voltage (5.0 mA
≤
I
O
≤
1.0 A, P
D
≤
15 W)
10.6 Vdc
≤
V
in
≤
23 Vdc
V
O
7.7
8.0
8.3
Vdc
Line Regulation (Note 12)
10.6 Vdc
≤
V
in
≤
25 Vdc, I
O
= 500 mA
11 Vdc
≤
V
in
≤
17 Vdc, I
O
= 1.0 A
10.4 Vdc
≤
V
in
≤
23 Vdc, T
J
= 25
°
C
Reg
line
6.0
1.7
5.0
15
18
15
mV
Load Regulation (Note 12)
5.0 mA
≤
I
O
≤
1.5 A, T
J
= 25
°
C
5.0 mA
≤
I
O
≤
1.0 A
250 mA
≤
I
O
≤
750 mA
Reg
load
1.4
1.0
0.22
25
25
15
mV
Quiescent Current
I
B
3.3
6.0
mA
Quiescent Current Change
11 Vdc
≤
V
in
≤
25 Vdc, I
O
= 500 mA
10.6 Vdc
≤
V
in
≤
23 Vdc, I
O
= 1.0 A, T
J
= 25
°
C
5.0 mA
≤
I
O
≤
1.0 A
I
B
0.8
0.8
0.5
mA
Ripple Rejection
11.5 Vdc
≤
V
in
≤
O
= 500 mA
RR
56
62
dB
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)
10 Hz
≤
f
≤
100 kHz
V
n
10
V/V
O
Output Resistance f = 1.0 kHz
r
O
0.9
m
Short Circuit Current Limit (T
A
= 25
°
C)
V
in
= 35 Vdc
I
SC
0.2
A
Peak Output Current (T
J
= 25
°
C)
I
max
2.2
A
Average Temperature Coefficient of Output Voltage
TCV
O
0.4
mV/
°
C
11.T
low
= 0
°
C for MC78XXAC, C
=
40
°
C for MC78XXB, MC78XXAB, NCV7805
12.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.
T
high
= +125
°
C for MC78XXAC, C, NCV7805
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