LM7915C Просмотр технического описания (PDF) - National ->Texas Instruments
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LM7915C Datasheet PDF : 10 Pages
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Absolute Maximum Ratings (Note 1)
If Military Aerospace specified devices are required
please contact the National Semiconductor Sales
Office Distributors for availability and specifications
Input Voltage
(Vo e b5V)
(Vo e b12V and b15V)
b25V
b35V
Input-Output Differential
(Vo e b5V)
(Vo e b12V and b15V)
Power Dissipation (Note 2)
25V
30V
Internally Limited
Operating Junction Temperature Range 0 C to a125 C
Storage Temperature Range
b65 C to a150 C
Lead Temperature (Soldering 10 sec )
230 C
Electrical Characteristics Conditions unless otherwise noted IOUT e 500 mA CIN e 2 2 mF COUT e 1 mF
0 C s TJ s a125 C Power Dissipation s 1 5W
Part Number
LM7905C
Output Voltage
Input Voltage (unless otherwise specified)
b5V
b10V
Units
Symbol
Parameter
Conditions
Min
Typ
Max
VO
DVO
DVO
IQ
DIQ
Vn
IOMAX
Output Voltage
Line Regulation
TJ e 25 C
5 mA s IOUT s 1A
P s 15W
TJ e 25 C (Note 3)
Load Regulation
Quiescent Current
Quiescent Current
Change
Output Noise Voltage
Ripple Rejection
TJ e 25 C (Note 3)
5 mA s IOUT s 1 5A
250 mA s IOUT s 750 mA
TJ e 25 C
With Line
With Load 5 mA s IOUT s 1A
TA e 25 C 10 Hz s f s 100 Hz
f e 120 Hz
Dropout Voltage
Peak Output Current
Average Temperature
Coefficient of
Output Voltage
TJ e 25 C IOUT e 1A
TJ e 25 C
IOUT e 5 mA
0 C s TJ s 100 C
b4 8
b5 0
b5 2
b4 75
b5 25
(b20 s VIN s b7)
8
50
(b25 s VIN s b7)
2
15
(b12 s VIN s b8)
15
100
5
50
1
2
05
(b25 s VIN s b7)
05
125
54
66
(b18 s VIN s b8)
11
22
04
V
V
V
mV
V
mV
V
mV
mV
mA
mA
V
mA
mV
dB
V
V
A
mV C
Typical Applications (Continued)
Variable Output
Improves transient response and ripple rejection Do not increase beyond 50 mF
J R1 a R2
VOUT e VSET
R2
Select R2 as follows
LM7905CT 300X
LM7912CT 750X
LM7915CT 1k
2
TL H 7340 – 2
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