參數(shù)資料
型號： μA7815
廠商： Texas Instruments, Inc.
英文描述： General Purpose, High Current Positive-Voltage Regulator(15V，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（15V的，通用大電流正電壓穩(wěn)壓器）
文件頁數(shù)： 8/19頁
文件大?。?/td> 481K
代理商： ΜA7815
μ
A7800 SERIES
POSITIVE-VOLTAGE REGULATORS
SLVS056B – MAY 1976 – REVISED OCTOBER 1996
8
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics at specified virtual junction temperature, V
I
= 19 V, I
O
= 500 mA (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
μ
A7812C
TYP
UNIT
TJ
MIN
11.5
MAX
12.5
O
l
25
°
C
12
V
IO = 5 mA to 1 A,
P
≤
15 W
VI = 14.5 V to 30 V
VI = 16 V to 22 V
VI = 15 V to 25 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 = 14.5 V to 27 V,
Full range§
11.4
12.6
Input voltage regulation
°
25
C
10
3
71
12
4
240
120
mV
Ripple rejection
f = 120 Hz
Full range§
55
dB
Output voltage regulation
°
25
C
240
120
mV
Output resistance
Temperature coefficient of output voltage
Output noise voltage
Dropout voltage
Bias current
Full range§
Full range§
25
°
C
25
°
C
25
°
C
0.018
–1
75
mV/
°
C
μ
V
V
mA
2
4.3
8
1
Bias current change
VI = 14.5 V to 30 V
IO = 5 mA to 1 A
Full range§
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.
§Full range virtual junction temperature is 0
°
C to 125
°
C for the
μ
A7812C and –40
°
C to 125
°
C for the
μ
A7812Q.
25
°
C
25
°
C
350
2.2
mA
A
electrical characteristics at specified virtual junction temperature, V
I
= 23 V, I
O
= 500 mA (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
μ
A7815C
TYP
UNIT
TJ
MIN
14.4
MAX
15.6
Output voltage
25
°
C
15
V
IO = 5 mA to 1 A,
P
≤
15 W
VI = 17.5 V to 30 V
VI = 20 V to 26 V
VI = 18.5 V to 28.5 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 = 17.5 V to 30 V
0
°
C to 125
°
C
14.25
15.75
Input voltage regulation
°
25
C
11
3
70
12
4
300
150
mV
Ripple rejection
f = 120 Hz
0
°
C to 125
°
C
54
dB
Output voltage regulation
°
25
C
300
150
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
0.019
–1
90
mV/
°
C
μ
V
V
mA
2
4.4
8
1
Bias current change
VI = 17.5 V to 30 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
230
2.1
mA
A
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