參數(shù)資料
型號(hào)： μA7812
廠商： Texas Instruments, Inc.
英文描述： General Purpose, High Current Positive-Voltage Regulator(12V，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（12V的，通用大電流正電壓穩(wěn)壓器）
文件頁(yè)數(shù)： 10/19頁(yè)
文件大?。?/td> 481K
代理商： ΜA7812
μ
A7800 SERIES
POSITIVE-VOLTAGE REGULATORS
SLVS056B – MAY 1976 – REVISED OCTOBER 1996
10
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics at specified virtual junction temperature, V
I
= 10 V, I
O
= 500 mA, T
J
= 25
°
C
(unless otherwise noted)
PARAMETER
TEST CONDITIONS
μ
A7805Y
TYP
UNIT
MIN
MAX
Output voltage
5
3
1
V
Input voltage regulation
VI = 7 V to 25 V
VI = 8 V to 12 V
VI = 8 V to 18 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
mV
Ripple rejection
f = 120 Hz
78
15
5
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.
0.017
–1.1
mV/
°
C
μ
V
V
mA
mA
A
40
2
4.2
750
2.2
electrical characteristics at specified virtual junction temperature, V
I
= 11 V, I
O
= 500 mA, T
J
= 25
°
C
(unless otherwise noted)
PARAMETER
TEST CONDITIONS
μ
A7806Y
TYP
UNIT
MIN
MAX
Output voltage
6
5
V
Input voltage regulation
VI = 8 V to 25 V
VI = 9 V to 13 V
VI = 9 V to 19 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
mV
1.5
75
14
Ripple rejection
f = 120 Hz
dB
Output voltage regulation
mV
4
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.
0.019
–0.8
mV/
°
C
μ
V
V
mA
mA
A
45
2
4.3
550
2.2
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