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參數資料
| 型號： | μA7808 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | General Purpose, High Current Positive-Voltage Regulator(8V，通用大電流正電壓穩(wěn)壓器) |
| 中文描述： | 通用，高電流正電壓穩(wěn)壓器（8V的，通用大電流正電壓穩(wěn)壓器） |
| 文件頁數： | 11/19頁 |
| 文件大?。?/td> | 481K |
| 代理商： | ΜA7808 |
μ
A7800 SERIES
POSITIVE-VOLTAGE REGULATORS
SLVS056B – MAY 1976 – REVISED OCTOBER 1996
11
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics at specified virtual junction temperature, V
I
= 14 V, I
O
= 500 mA, T
J
= 25
°
C
(unless otherwise noted)
PARAMETER
TEST CONDITIONS
μ
A7808Y
TYP
UNIT
MIN
MAX
Output voltage
8
6
2
V
Input voltage regulation
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 A
f = 1 kHz
IO = 5 mA
f = 10 Hz to 100 kHz
IO = 1 A
mV
Ripple rejection
f = 120 Hz
72
12
4
dB
Output voltage regulation
mV
Output resistance
Temperature coefficient of output voltage
Output noise voltage
Dropout voltage
Bias current
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.
0.016
–0.8
mV/
°
C
μ
V
V
mA
mA
A
52
2
4.3
450
2.2
electrical characteristics at specified virtual junction temperature, V
I
= 15 V, I
O
= 500 mA, T
J
= 25
°
C
(unless otherwise noted)
PARAMETER
TEST CONDITIONS
μ
A7885Y
TYP
UNIT
MIN
MAX
Output voltage
8.5
V
Input voltage regulation
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
6
2
mV
Ripple rejection
f = 120 Hz
70
12
4
dB
Output voltage regulation
mV
Output resistance
Temperature coefficient of output voltage
Output noise voltage
Dropout voltage
Bias current
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.
0.016
–0.8
mV/
°
C
μ
V
V
mA
mA
A
55
2
4.3
450
2.2
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