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參數(shù)資料
| 型號： | L7815ACD2T-TR |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | Precision 1A regulators |
| 中文描述： | 第1A精密穩(wěn)壓器 |
| 文件頁數(shù)： | 13/28頁 |
| 文件大?。?/td> | 350K |
| 代理商： | L7815ACD2T-TR |
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L7800AB/AC series
Electrical characteristics
13/28
Table 10.
Electrical characteristics of L7820A
(V
I
= 28V, I
O
=1A, T
J
= 0 to 150°C (L7820AC),
T
J
= -40 to 125°C (L7820AB), unless otherwise specified)
Parameter
Test conditions
Symbol
Min.
Typ.
Max.
Unit
V
O
Output voltage
T
J
= 25°C
I
O
= 5mA to 1A, P
O
≤
15W
V
I
= 23 to 35V
19.6
20
20.4
V
V
O
Output voltage
19.2
20
20.8
V
V
O (1)
Line regulation
V
I
= 23 to 35V, I
O
= 500 mA
200
mV
V
I
= 26 to 32V
200
mV
V
I
= 26 to 32V, T
J
= 25°C
100
mV
V
I
= 23 to 32V, T
J
= 25°C
200
mV
V
O (1)
Load regulation
I
O
= 5mA to 1A
25
100
mV
I
O
= 5mA to 1.5A, T
J
= 25°C
30
100
V
I
O
= 250 to 750mA
10
50
V
I
q
Quiescent current
T
J
= 25°C
4.5
6
mA
6
mA
I
q
Quiescent current change
V
I
= 23 to 35V, I
O
= 500 mA
0.8
mA
V
I
= 23 to 35V, T
J
= 25°C
0.8
mA
I
O
= 5mA to 1A
0.5
mA
SVR
Supply voltage rejection
V
I
= 24 to 35V, f = 120Hz, I
O
= 500mA
56
dB
V
d
Dropout voltage
I
O
= 1A, T
J
= 25°C
2
V
eN
Output noise voltage
T
A
= 25°C, B =10Hz to 100KHz
10
μV/V
O
m
R
O
Output resistance
f =1KHz
20
I
sc
Short circuit current
V
I
= 35V, T
A
= 25°C
0.2
A
I
scp
Short circuit peak current
T
J
= 25°C
2.2
A
V
O
/
T
Output voltage drift
-1
mV/°C
1.
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.
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