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參數(shù)資料
| 型號： | MC78905CT |
| 廠商： | Fairchild Semiconductor Corporation |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | 3-TERMINAL 1A NEGATIVE VOLTAGE REGULATORS |
| 中文描述： | 三端負電壓調節(jié)器第1A |
| 文件頁數(shù)： | 4/15頁 |
| 文件大?。?/td> | 117K |
| 代理商： | MC78905CT |
MC79XX (LM79XX) (KA79XX/A) FIXED VOLTAGE REGULATOR (NEGATIVE)
LM7908 ELECTRICAL CHARACTERISTICS
(V
I
= 14V, l
O
= 500mA, 0
°
C
≤
T
J
≤ +
125
°
C, C
I
=2.2
μ
F, C
O
= 1
μ
F, unless otherwise specified.)
* 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 is used.
Characteristic
Symbol
Test Conditions
Min
Typ
Max
Unit
T
J
=+ 25
°
C
I
O
= 5mA to 1A, P
O
15W
V
I
= -1.5 to -23V
V
I
= -10.5 to -25V
V
I
= -11 to -17V
T
J
=+ 25
°
C
I
O
= 5mA to 1.5A
T
J
=+ 25
°
C
I
O
= 250 to 750mA
T
J
=+ 25
°
C
I
O
= 5mA to 1A
V
I
= -11.5 to -25V
I
O
= 5mA
f = 10Hz to 100KHz
T
A
=+ 25
°
C
f = 120Hz
V
I
= 10V
T
J
=+ 25
°
C
I
O
= 1A
T
J
=+ 25
°
C, V
I
= -35V
T
J
=+ 25
°
C
- 7.7
- 8
- 8.3
Output Voltage
V
O
- 7.6
- 8
- 8.4
V
10
5
100
80
12
160
4
80
Quiescent Current
I
Q
3
6
mA
0.05
0.1
-0.6
0.5
1
Temperature Coefficient of V
D
V
O
/
T
mV/
°
C
Output Noise Voltage
V
N
175
μ
V
Ripple Rejection
RR
54
60
dB
Dropout Voltage
V
D
2
V
Short Circuit Current
Peak Current
I
SC
I
PK
300
2.2
mA
A
Line Regulation
V
O
Load Regulation
V
O
mV
mV
T
J
= 25
°
C
Quiescent Current Change
I
Q
mA
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