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參數(shù)資料
| 型號： | L7952CD2T-TR |
| 英文描述： | Negative Fixed Voltage Regulator |
| 中文描述： | 負(fù)固定電壓穩(wěn)壓器 |
| 文件頁數(shù)： | 3/13頁 |
| 文件大小： | 109K |
| 代理商： | L7952CD2T-TR |
* Load and line regulation are specified at constant junction temperature. Changes in V
o
due to heating effects must be taken into account
separately. Pulce testing with low duty cycle is used.
ELECTRICALCHARACTERISTICS FOR L7905C
(refer to the test circuits, T
j
= 0 to 150
o
C,
V
i
= -10V, I
o
= 500mA, C
i
= 2.2
μ
F, C
o
= 1
μ
F unless otherwisespecified)
Symbol
Parameter
Test Conditions
V
o
OutputVoltage
T
j
= 25
o
C
V
o
OutputVoltage
I
o
= -5mA to -1A
V
i
= 8 to20 V
V
o
*
LineRegulation
V
i
= -7to -25 V
V
i
= -8to -12 V
Load Regulation
I
o
= 5 to 1500 mA
I
o
= 250 to 750mA
I
d
Quiescent Current
T
j
= 25
o
C
Quiescent Current Change
I
o
= 5 to 1000 mA
Min.
-4.8
Typ.
-5
Max.
-5.2
Unit
V
P
o
≤
15W
-4.75
-5
-5.25
V
T
j
= 25
o
C
T
j
= 25
o
C
T
j
= 25
o
C
T
j
= 25
o
C
100
50
mV
mV
V
o
*
100
50
mV
mV
3
mA
I
d
I
d
V
o
T
e
N
0.5
mA
Quiescent Current Change
V
i
= -8to -25 V
1.3
mA
OutputVoltageDrift
I
o
= 5 mA
-0.4
mV/
o
C
OutputNoise Voltage
B = 10Hzto 100KHz T
j
= 25
o
C
100
μ
V
dB
SVR
Supply Voltage Rejection
V
i
=10 V
I
o
= 1 A
V
O
= 100 mV
f= 120Hz
T
j
= 25
o
C
54
60
V
d
Dropout Voltage
1.4
V
I
sc
Short Circuit Current
2.1
A
ELECTRICALCHARACTERISTICS FOR L7952C
(refer to the test circuits, T
j
= 0 to 150
o
C,
V
i
= -10V, I
o
= 500mA, C
i
= 2.2
μ
F, C
o
= 1
μ
F unless otherwisespecified)
Symbol
Parameter
Test Conditions
T
j
= 25
o
C
V
o
OutputVoltage
I
o
= -5mA to -1A
V
i
= -9to -21 V
V
o
*
LineRegulation
V
i
= -8to -25 V
V
i
= -9to -12 V
V
o
*
Load Regulation
I
o
= 5 to 1500 mA
I
o
= 250 to 750mA
I
d
Quiescent Current
T
j
= 25
o
C
I
d
Quiescent Current Change
I
o
= 5 to 1000 mA
I
d
Quiescent Current Change
V
i
= -9to -25 V
V
o
T
e
N
OutputNoise Voltage
B = 10Hzto 100KHz T
j
= 25
o
C
Min.
Typ.
Max.
Unit
V
o
OutputVoltage
-5.0
-5.2
-5.4
V
P
o
≤
15W
-4.95
-5.2
-5.45
V
T
j
= 25
o
C
T
j
= 25
o
C
T
j
= 25
o
C
T
j
= 25
o
C
105
52
mV
mV
105
52
mV
mV
3
mA
0.5
mA
1.3
mA
OutputVoltageDrift
I
o
= 5 mA
-0.5
mV/
o
C
125
μ
V
dB
SVR
Supply Voltage Rejection
V
i
=10 V
I
o
= 1 A
V
O
= 100 mV
f= 120Hz
T
j
= 25
o
C
54
60
V
d
Dropout Voltage
1.4
V
I
sc
Short Circuit Current
2
A
L7900
3/13
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