參數(shù)資料
型號(hào): L7808
廠商: 意法半導(dǎo)體
英文描述: Positive Voltage Regulators(三端穩(wěn)壓器)
中文描述: 正電壓調(diào)節(jié)器(三端穩(wěn)壓器)
文件頁(yè)數(shù): 18/52頁(yè)
文件大?。?/td> 1800K
代理商: L7808
Electrical characteristics
L78xx - L78xxC
18/52
Table 11.
Electrical characteristics of L7824
(refer to the test circuits, T
J
= -55 to 150°C, V
I
= 33 V,
I
O
= 500 mA, C
I
= 0.33 μF, C
O
= 0.1 μF unless otherwise specified)
Parameter
Test conditions
Symbol
Min.
Typ.
Max.
Unit
V
O
Output voltage
T
J
= 25°C
I
O
= 5 mA to 1 A, P
O
15 W
V
I
= 28 to 38 V
23
24
25
V
V
O
Output voltage
22.8
24
25.2
V
Δ
V
O(1)
Line regulation
V
I
= 27 to 38 V, T
J
= 25°C
240
mV
V
I
= 30 to 36 V, T
J
= 25°C
120
Δ
V
O(1)
Load regulation
I
O
= 5 mA to 1.5 A, T
J
= 25°C
240
mV
I
O
= 250 to 750 mA, T
J
= 25°C
120
I
d
Quiescent current
T
J
= 25°C
6
mA
Δ
I
d
Quiescent current change
I
O
= 5 mA to 1 A
0.5
mA
V
I
= 28 to 38 V
0.8
Δ
V
O
/
Δ
T
Output voltage drift
I
O
= 5 mA
3
mV/°C
eN
Output noise voltage
B =10 Hz to 100 KHz, T
J
= 25°C
40
μV/V
O
SVR
Supply voltage rejection
V
I
= 28 to 38 V, f = 120 Hz
56
dB
V
d
Dropout voltage
I
O
= 1 A, T
J
= 25°C
2
2.5
V
R
O
Output resistance
f = 1 KHz
28
m
Ω
I
sc
Short circuit current
V
I
= 35 V, T
J
= 25°C
0.75
1.2
A
I
scp
Short circuit peak current
T
J
= 25°C
1.3
2.2
3.3
A
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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