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參數(shù)資料
| 型號： | uA7800 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Fork Tongue Solderless Terminal; Wire Size (AWG):16-14; Stud Size:#6; Body Material:Alloy Steel; Body Plating:Nickel; Voltage Rating:600V RoHS Compliant: Yes |
| 中文描述： | 正電壓調(diào)節(jié)器 |
| 文件頁數(shù)： | 5/14頁 |
| 文件大?。?/td> | 364K |
| 代理商： | UA7800 |
μ
A7800 SERIES
POSITIVE-VOLTAGE REGULATORS
SLVS056J
–
MAY 1976
–
REVISED MAY 2003
5
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
TJ
μ
A7812C
TYP
UNIT
MIN
11.5
MAX
12.5
Output voltage
IO = 5 mA to 1 A,
PD
≤
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
VI = 14.5 V to 27 V,
25
°
C
12
V
0
°
C to 125
°
C
11.4
12.6
Input voltage regulation
25
°
C
10
240
mV
3
120
Ripple rejection
f = 120 Hz
0
°
C to 125
°
C
55
71
dB
Output voltage regulation
25
°
C
12
240
mV
4
120
Output resistance
0
°
C to 125
°
C
0
°
C to 125
°
C
25
°
C
25
°
C
25
°
C
0.018
Temperature coefficient of output voltage
IO = 5 mA
f = 10 Hz to 100 kHz
–
1
mV/
°
C
μ
V
V
Output noise voltage
75
Dropout voltage
IO = 1 A
2
Bias current
4.3
8
mA
Bias current change
VI = 14.5 V to 30 V
IO = 5 mA to 1 A
C t 125
0
°
C to 125
°
C
1
mA
0.5
Short-circuit output current
25
°
C
25
°
C
350
mA
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.
2.2
A
electrical characteristics at specified virtual junction temperature, V
I
= 23 V, I
O
= 500 mA (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
TJ
μ
A7815C
TYP
UNIT
MIN
14.4
MAX
15.6
Output voltage
IO = 5 mA to 1 A,
PD
≤
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
VI = 17.5 V to 30 V,
25
°
C
15
V
0
°
C to 125
°
C
14.25
15.75
Input voltage regulation
25
°
C
11
300
mV
3
150
Ripple rejection
f = 120 Hz
0
°
C to 125
°
C
54
70
dB
Output voltage regulation
25
°
C
12
300
mV
4
150
Output resistance
0
°
C to 125
°
C
0
°
C to 125
°
C
25
°
C
25
°
C
25
°
C
0.019
Temperature coefficient of output voltage
IO = 5 mA
f = 10 Hz to 100 kHz
–
1
mV/
°
C
μ
V
V
Output noise voltage
90
Dropout voltage
IO = 1 A
2
Bias current
4.4
8
mA
Bias current change
VI = 17.5 V to 30 V
IO = 5 mA to 1 A
0
°
C to 125
°
C
1
mA
0.5
Short-circuit output current
25
°
C
25
°
C
230
mA
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.
2.1
A
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