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參數(shù)資料
| 型號： | UA78Mxx |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | POSITIVE-VOLTAGE REGULATORS |
| 中文描述： | 正電壓調(diào)節(jié)器 |
| 文件頁數(shù)： | 8/13頁 |
| 文件大?。?/td> | 266K |
| 代理商： | UA78MXX |
The
μ
A78M10 and
μ
A78M15 are
obsolete and are no longer supplied
μ
A78M00 SERIES
POSITIVE-VOLTAGE REGULATORS
SLVS059K
–
JUNE 1976
–
REVISED FEBRUARY 2003
8
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics at specified virtual junction temperature, V
I
= 19 V, I
O
= 350 mA, T
J
= 25
°
C
(unless otherwise noted)
PARAMETER
TEST CONDITIONS
μ
A78M12C
MIN
11.5
UNIT
TYP
12
MAX
12.5
O t
Output voltage
VI= 14 5 V to 27 V
VI = 14.5 V to 27 V,
IO= 5 mA to 350 mA
IO = 5 mA to 350 mA
V
TJ = 0
°
C to 125
°
C
11.4
12.6
Input voltage regulation
IO= 200 mA
IO = 200 mA
VI = 14.5 V to 30 V
VI = 16 V to 30 V
IO = 100 mA,
IO = 300 mA
8
100
mV
2
50
Ripple rejection
VI = 15 V to 25 V,
f = 120 Hz
TJ = 0
°
C to 125
°
C
55
dB
55
80
Output voltage regulation
IO = 5 mA to 500 mA
IO = 5 mA to 200 mA
25
240
mV
10
120
Temperature coefficient
of output voltage
IO = 5 mA
–
1
mV/
°
C
Output noise voltage
f = 10 Hz to 100 kHz
75
μ
V
V
Dropout voltage
2
Bias current
4.8
6
mA
Bias current change
VI = 14.5 V to 30 V,
IO = 5 mA to 350 mA,
VI = 35 V
IO = 200 mA,
TJ = 0
°
C to 125
°
C
TJ = 0
°
C to 125
°
C
0.8
mA
0.5
Short-circuit output current
240
mA
Peak output current
All characteristics are measured with a 0.33-
μ
F capacitor across the input and a 0.1-
μ
F capacitor across the output. Pulse-testing techniques
maintain TJ as close to TA as possible. Thermal effects must be taken into account separately.
0.7
A
electrical characteristics at specified virtual junction temperature, V
I
= 23 V, I
O
= 350 mA, T
J
= 25
°
C
(unless otherwise noted)
PARAMETER
TEST CONDITIONS
μ
A78M15C
MIN
14.4
UNIT
TYP
15
MAX
15.6
O t
Output voltage
VI= 17 5 V to 30 V
VI = 17.5 V to 30 V,
IO= 5 mA to 350 mA
IO = 5 mA to 350 mA
V
TJ = 0
°
C to 125
°
C
14.25
15.75
Input voltage regulation
IO= 200 mA
IO = 200 mA
VI = 17.5 V to 30 V
VI = 20 V to 30 V
IO = 100 mA,
IO = 300 mA
10
100
mV
3
50
Ripple rejection
VI = 18.5 V to 28.5 V,
f = 120 Hz
TJ = 0
°
C to 125
°
C
54
dB
54
70
Output voltage regulation
IO = 5 mA to 500 mA
IO = 5 mA to 200 mA
25
300
mV
10
150
Temperature coefficient
of output voltage
IO = 5 mA,
TJ = 0
°
C to 125
°
C
–
1
mV/
°
C
Output noise voltage
f = 10 Hz to 100 kHz
90
μ
V
V
Dropout voltage
2
Bias current
4.8
6
mA
Bias current change
VI = 17.5 V to 30 V,
IO = 5 mA to 350 mA,
VI = 35 V
IO = 200 mA,
TJ = 0
°
C to 125
°
C
TJ = 0
°
C to 125
°
C
0.8
mA
0.5
Short-circuit output current
240
mA
Peak output current
All characteristics are measured with a 0.33-
μ
F capacitor across the input and a 0.1-
μ
F capacitor across the output. Pulse-testing techniques
maintain TJ as close to TA as possible. Thermal effects must be taken into account separately.
0.7
A
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