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)： 16/32頁
文件大?。?/td> 234K
代理商： NCV7812BT
MC7800, MC7800A, NCV7805
http://onsemi.com
16
ELECTRICAL CHARACTERISTICS
(V
in
= 27 V, I
O
= 1.0 A, T
J
= T
low
to T
high
(Note 26), unless otherwise noted)
MC7818AC
Characteristic
Symbol
Min
Typ
Max
Unit
Output Voltage (T
J
= 25
°
C)
V
O
17.64
18
18.36
Vdc
Output Voltage (5.0 mA
≤
I
O
≤
1.0 A, P
D
≤
15 W)
V
O
17.3
18
18.7
Vdc
21 Vdc
≤
V
in
≤
33 Vdc
Line Regulation (Note 27)
Reg
line
mV
21 Vdc
≤
V
in
≤
33 Vdc, I
O
= 500 mA
9.5
22
24 Vdc
≤
V
in
≤
30 Vdc, I
O
= 1.0 A
3.2
25
24 Vdc
≤
V
in
≤
30 Vdc, I
O
= 1.0 A, T
J
= 25
°
C
3.2
10.5
20.6 Vdc
≤
V
in
≤
33 Vdc, I
O
= 1.0 A, T
J
= 25
°
C
8.0
22
Load Regulation (Note 27)
Reg
load
mV
5.0 mA
≤
I
O
≤
1.5 A, T
J
= 25
°
C
2.0
25
5.0 mA
≤
I
O
≤
1.0 A
1.8
25
250 mA
≤
I
O
≤
750 mA
1.5
15
Quiescent Current
I
B
3.5
6.0
mA
Quiescent Current Change
I
B
mA
21 Vdc
≤
V
in
≤
33 Vdc, I
O
= 500 mA
0.8
21.5 Vdc
≤
V
in
≤
30 Vdc, T
J
= 25
°
C
0.8
5.0 mA
≤
I
O
≤
1.0 A
0.5
Ripple Rejection
RR
53
57
dB
22 Vdc
≤
V
in
≤
32 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
1.3
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
1.5
mV/
°
C
26.T
low
= 0
°
C for MC78XXAC, C
=
40
°
C for MC78XXB, MC78XXAB, NCV7805
27.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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