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參數資料
| 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： | 9/19頁 |
| 文件大?。?/td> | 481K |
| 代理商： | ΜA7805 |
μ
A7800 SERIES
POSITIVE-VOLTAGE REGULATORS
SLVS056B – MAY 1976 – REVISED OCTOBER 1996
9
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics at specified virtual junction temperature, V
I
= 27 V, I
O
= 500 mA (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
μ
A7818C
TYP
UNIT
TJ
MIN
17.3
MAX
18.7
O
l
25
°
C
18
V
IO = 5 mA to 1 A,
P
≤
15 W
VI = 21 V to 33 V
VI = 24 V to 30 V
VI = 22 V to 32 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 = 21 V to 33 V,
0
°
C to 125
°
C
17.1
18.9
Input voltage regulation
25
°
C
15
5
69
12
4
360
180
mV
Ripple rejection
f = 120 Hz
0
°
C to 125
°
C
53
dB
Output voltage regulation
25
°
C
360
180
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
0.022
–1
110
mV/
°
C
μ
V
V
mA
2
4.5
8
1
Bias current change
VI = 21 V to 33 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
200
2.1
mA
A
electrical characteristics at specified virtual junction temperature, V
I
= 33 V, I
O
= 500 mA (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
μ
A7824C
TYP
UNIT
TJ
MIN
23
MAX
Output voltage
25
°
C
24
25
V
IO = 5 mA to 1 A,
P
≤
15 W
VI = 27 V to 38 V
VI = 30 V to 36 V
VI = 28 V to 38 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 = 27 V to 38 V,
0
°
C to 125
°
C
22.8
25.2
Input voltage regulation
°
25
C
18
6
66
12
4
480
240
mV
Ripple rejection
f = 120 Hz
0
°
C to 125
°
C
50
dB
Output voltage regulation
25
°
C
480
240
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
0.028
–1.5
170
mV/
°
C
μ
V
V
mA
2
4.6
8
1
Bias current change
VI = 27 V to 38 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
150
2.1
mA
A
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