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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(diào)節(jié)器第1A |
| 文件頁數(shù)： | 2/15頁 |
| 文件大?。?/td> | 117K |
| 代理商： | MC78905CT |
MC79XX (LM79XX) (KA79XX/A) FIXED VOLTAGE REGULATOR (NEGATIVE)
ABSOLUTE MAXIMUM RATINGS
(T
A
=+25
°
C, unless otherwise specified)
LM7905 ELECTRICAL CHARACTERISTICS
(V
I
= 10V, 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
Value
Unit
Input Voltage
Thermal Resistance Junction-Cases
Junction-Air
V
I
-35
5
65
V
R
θ
JC
R
θ
JA
T
OPR
T
STG
°
C / W
°
C /W
Operating Temperature Range
Storage Temperature Range
0 ~ +125
- 65 ~ +150
°
C
°
C
Characteristic
Symbol
Test Conditions
Min
Typ
Max
Unit
T
J
=+25
°
C
I
O
= 5mA to 1A, P
O
15W
V
I
= -7 to -20V
V
I
= -7 to -20V
I
O
=1A
V
I
= -8 to -12V
I
O
=1A
V
I
= -7.5 to -25V
- 4.8
- 5.0
- 5.2
Output Voltage
V
O
- 4.75
-5.0
- 5.25
V
5
50
2
25
7
50
V
I
= -8 to -12V
I
O
=1A
I
O
= 5mA to 1.5A
7
50
10
100
T
J
=+25
°
C
I
O
= 250 to 750mA
T
J
=+25
°
C
I
O
= 5mA to 1A
V
I
= -8 to -25V
I
O
= 5mA
f = 10Hz to 100KHz
T
A
=+25
°
C
f = 120Hz, I
O
= -35V
V
I
= 10V
T
J
=+25
°
C
I
O
= 1A
T
J
=+25
°
C, V
I
= -35V
T
J
=+25
°
C
3
50
Quiescent Current
I
Q
3
6
mA
0.05
0.1
- 0.4
0.5
0.8
Temperature Coefficient of V
D
V
O
/
T
mV/
°
C
Output Noise Voltage
V
N
40
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
Load Regulation
V
O
Line Regulation
V
O
T
J
=25
°
C
mV
mV
Quiescent Current Change
I
Q
mA
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