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PDF LM431ACZU Data sheet ( Hoja de datos )
| Número de pieza | LM431ACZU | |
| Descripción | Adjustable precision shunt regulators | |
| Fabricantes | NXP Semiconductors | |
| Logotipo |  |
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INTEGRATED CIRCUITS
TL431C, TL431AC, TL431I,
TL431AI, LM431AC
Adjustable precision shunt regulators
Product specification
1997 Feb 25
Philips
Semiconductors
1 page  
Philips Semiconductors
Adjustable precision shunt regulators
Product specification
TL431C, TL431AC, TL431I,
TL431AI, LM431AC
αVREF can be positive or negative depending on whether minimum VREF of maximum VREF, respectively, occurs at the lower temperature.
Example: Max VREF = 2496mV at 30°C, Min VREF = 2492mV at 0°C, VREF = 2495mV at 25°C, DTA = 70°C for TL431C.
ǒ Ǔ| aVREF | +
4mV
2495mV
@ 106
70oC
+ 23ppmńoC
Because minimum VREF occurs at the lower temperature, the coefficient is positive.
4.
The dynamic impedance is defined as: | ZKA |
+
DVKA
DIK
When the device is operating with two external resistors, (see Figure xx), the total dynamic impedance of the circuit is given by:
ǒ Ǔ| ZȀ |
+
DV
DI
[ | ZKA |
1
)
R1
R2
PARAMETER MEASUREMENT INFORMATION
INPUT
VKA
IK
INPUT
VKA
Ioff
Vref
Figure 3. Test Circuit for VKA = Vref
SL01177
INPUT
R1
R2
VKA
IK
Iref
ǒ ǓVref
VKA + Vref
1
)
R1
R2
) Iref
R1
Figure 4. Test Circuit for VKA > Vref
SL01178
Figure 5. Test Circuit for IOFF
SL01179
1997 Feb 25
5
5 Page 
Philips Semiconductors
Adjustable precision shunt regulators
Product specification
TL431C, TL431AC, TL431I,
TL431AI, LM431AC
SO8: plastic small outline package; 8 leads; body width 3.9mm
SOT96-1
1997 Feb 25
11
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet LM431ACZU.PDF ] | |
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