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參數(shù)資料
| 型號： | L79XXC |
| 廠商： | 意法半導(dǎo)體 |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Negative voltage regulators |
| 中文描述： | 負(fù)電壓穩(wěn)壓器 |
| 文件頁數(shù)： | 8/24頁 |
| 文件大?。?/td> | 797K |
| 代理商： | L79XXC |
Electrical characteristics
L79xxC
8/24
Electrical characteristics of L7908C
(refer to the test circuits, T
J
= 0 to 125 °C, V
I
= -14 V,
I
O
= 500 mA, C
I
= 2.2 μF, C
O
= 1 μF unless otherwise specified)
Parameter
Test conditions
Table 5.
Electrical characteristics of L7906C
(refer to the test circuits, T
J
= 0 to 125 °C, V
I
= -11 V,
I
O
= 500 mA, C
I
= 2.2 μF, C
O
= 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
= -9.5 to -21.5 V
-5.75
-6
-6.25
V
V
O
Output voltage
-5.7
-6
-6.3
V
Δ
V
O(1)
Line regulation
V
I
= -8.5 to -25 V, T
J
= 25°C
120
mV
V
I
= -9 to -15 V, T
J
= 25°C
60
Δ
V
O(1)
Load regulation
I
O
= 5 mA to 1.5 A, T
J
= 25°C
120
mV
I
O
= 250 to 750 mA, T
J
= 25°C
60
I
d
Quiescent current
T
J
= 25°C
3
mA
Δ
I
d
Quiescent current change
I
O
= 5 mA to 1 A
0.5
mA
V
I
= -9.5 to -25 V
1.3
Δ
V
O
/
Δ
T
Output voltage drift
I
O
= 5 mA
-0.6
mV/°C
eN
Output noise voltage
B = 10Hz to 100kHz, T
J
= 25°C
Δ
V
I
= 10 V, f = 120Hz
I
O
= 1 A, T
J
= 25°C,
Δ
V
O
= 100 mV
144
μV
SVR
Supply voltage rejection
54
60
dB
V
d
Dropout voltage
1.4
V
I
sc
Short circuit current
2
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.
Table 6.
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
= -11.5 to -23 V
-7.7
-8
-8.3
V
V
O
Output voltage
-7.6
-8
-8.4
V
Δ
V
O(1)
Line regulation
V
I
= -10.5 to -25 V, T
J
= 25°C
160
mV
V
I
= -11 to -17 V, T
J
= 25°C
80
Δ
V
O(1)
Load regulation
I
O
= 5 mA to 1.5 A, T
J
= 25°C
160
mV
I
O
= 250 to 750 mA, T
J
= 25°C
80
I
d
Quiescent current
T
J
= 25°C
3
mA
Δ
I
d
Quiescent current change
I
O
= 5 mA to 1 A
0.5
mA
V
I
= -11.5 to -25 V
1
Δ
V
O
/
Δ
T
Output voltage drift
I
O
= 5 mA
-0.6
mV/°C
eN
Output noise voltage
B = 10Hz to 100kHz, T
J
= 25°C
Δ
V
I
= 10 V, f = 120Hz
I
O
= 1 A, T
J
= 25°C,
Δ
V
O
= 100 mV
175
μV
SVR
Supply voltage rejection
54
60
dB
V
d
Dropout voltage
1.1
V
I
sc
Short circuit current
1.5
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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