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PDF TL431 Data sheet ( Hoja de datos )
| Número de pieza | TL431 | |
| Descripción | Precision Adjustable Precision Adjustable | |
| Fabricantes | CalogicLLC | |
| Logotipo |  |
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 1. Precision Shunt Regulator - TI  Hay una vista previa y un enlace de descarga de TL431 (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
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CORPORATION
FEATURES
• Trimmed 1% Bandgap Reference
• Nominal Temperature Range Extended to 105oC
• Temperature-Compensated: 30ppm/oC
• Internal Amplifier with 150mA Capability
• Low Output Noise
• Low Frequency Dynamic Output Impedance
PIN CONFIGURATION (Top View)
Precision Adjustable
Shunt Reference
TL431
DESCRIPTION
The TL431 is an adjustable shunt regulator designed to act as
an open-loop error amplifier with a 2.5V temperature
compensated reference. Its highly accurate 1% bandgap
reference is perfect for applications requiring stability and
accuracy over temperature and life.
Sharp turn-on characteristics and a low temperature coefficient
make the TL431 an excellent replacement for many zener
diode applications, programmable to any value greater than
2.5V and up to 36V by using two external resistors. As a
combination error amplifier and reference, it can be used to
manage control loops such as switching power supplies.
ORDERING INFORMATION
Part
TL431LP
TL431D
TL431S
Package
Temperature Range
TO-92
8-Pin Plastc SOIC
SOT-89
0 to 105oC
0 to 105oC
0 to 105oC
TO-92 (LP)
CATHODE
ANODE
REFERENCE
1G-33
CATHODE 1
ANODE 2
ANODE 3
N/C 4
SOIC (D)
8 REFERENCE
7 ANODE
6 ANODE
5 N/C
1G-34
SOT-89 (S)
CATHODE
ANODE
REFERENCE
1G-35
CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025
1 page  
CORPORATION
TL431
TYPICAL PERFORMANCE CURVES (continued)
NOISE VOLTAGE
70
60
50
40
30
20
VKA = VREF
10 I K = 10mA
0 TA = 25˚C
10 100 1k 10k
f – FREQUENCY (Hz)
100k
1G-47
LOW FREQUENCY DYNAMIC
OUTPUT IMPEDANCE
0.150
VKA = VREF
0.125
I KA = 1 TO 100mA
f ≤ 1kHz
0.100
0.075
0.050
0.025
0.0
–60 –30 0 30 60 90 120
TA – FREE AIR TEMPERATURE 1G-48
DYNAMIC OUTPUT
IMPEDANCE
100
TA = 25˚C
I K = 1 TO 100mA
10
1.0
0.1
0.01
1k
10k 100k 1M
f – FREQUENCY (Hz)
10M
1G-49
SMALL SIGNAL GAIN
vs FREQUENCY
70
60
50 TA = 25˚C
I K = 10mA
40
30
20
10
0
1k 10k 100k 1M 10M
f – FREQUENCY (Hz)
1G-50
15k
9µF
8.25k
IK
OUT
230 Ω
GND
1H-01
CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet TL431.PDF ] | |
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