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參數(shù)資料
| 型號： | μA7805 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | positive volitage regulators |
| 中文描述： | 正電壓穩(wěn)壓器 |
| 文件頁數(shù)： | 7/19頁 |
| 文件大?。?/td> | 481K |
| 代理商： | ΜA7805 |
μ
A7800 SERIES
POSITIVE-VOLTAGE REGULATORS
SLVS056B – MAY 1976 – REVISED OCTOBER 1996
7
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics at specified virtual junction temperature, V
I
= 15 V, I
O
= 500 mA (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
μ
A7885C
TYP
UNIT
TJ
MIN
8.15
MAX
8.85
O
l
25
°
C
8.5
V
IO = 5 mA to 1 A,
P
≤
15 W
VI = 10.5 V to 25 V
VI = 11 V to 17 V
VI = 11.5 V to 21.5 V,
IO = 5 mA to 1.5 A
IO = 250 mA to 750 mA
f = 1 kHz
IO = 5 mA
f = 10 Hz to 100 kHz
IO = 1 A
VI = 11 V to 23.5 V,
0
°
C to 125
°
C
8.1
8.9
Input voltage regulation
25
°
C
6
2
170
85
mV
Ripple rejection
f = 120 Hz
0
°
C to 125
°
C
54
70
12
4
dB
Output voltage regulation
25
°
C
170
85
mV
Output resistance
Temperature coefficient of output voltage
Output noise voltage
Dropout voltage
Bias current
0
°
C to 125
°
C
0
°
C to 125
°
C
25
°
C
25
°
C
25
°
C
0.016
–0.8
mV/
°
C
μ
V
V
mA
55
2
4.3
8
1
Bias current change
VI = 10.5 V to 25 V
IO = 5 mA to 1 A
0
°
C to 125
°
C
mA
0.5
Short-circuit output current
Peak output current
Pulse-testing techniques maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into
account separately. All characteristics are measured with a 0.33-
μ
F capacitor across the input and a 0.1-
μ
F capacitor across the output.
This specification applies only for dc power dissipation permitted by absolute maximum ratings.
25
°
C
25
°
C
450
2.2
mA
A
electrical characteristics at specified virtual junction temperature, V
I
= 17 V, I
O
= 500 mA (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
μ
A7810C
TYP
UNIT
TJ
MIN
9.6
MAX
10.4
Output voltage
25
°
C
10
V
IO = 5 mA to 1 A,
P
≤
15 W
VI = 12.5 V to 28 V
VI = 14 V to 20 V
VI = 13 V to 23 V,
IO = 5 mA to 1.5 A
IO = 250 mA to 750 mA
f = 1 kHz
IO = 5 mA
f = 10 Hz to 100 kHz
IO = 1 A
VI = 12.5 V to 25 V,
0
°
C to 125
°
C
9.5
10
10.5
Input voltage regulation
°
25
C
7
2
200
100
mV
Ripple rejection
f = 120 Hz
0
°
C to 125
°
C
55
71
12
4
dB
Output voltage regulation
25
°
C
200
100
mV
Output resistance
Temperature coefficient of output voltage
Output noise voltage
Dropout voltage
Bias current
0
°
C to 125
°
C
0
°
C to 125
°
C
25
°
C
25
°
C
25
°
C
0.018
–1
70
mV/
°
C
μ
V
V
mA
2
4.3
8
1
Bias current change
VI = 12.5 V to 28 V
IO = 5 mA to 1 A
0
°
C to 125
°
C
mA
0.5
Short-circuit output current
Peak output current
Pulse-testing techniques maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into
account separately. All characteristics are measured with a 0.33-
μ
F capacitor across the input and a 0.1-
μ
F capacitor across the output.
This specification applies only for dc power dissipation permitted by absolute maximum ratings.
25
°
C
25
°
C
400
2.2
mA
A
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