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TL431 Datasheet(PDF) 1 Page - Analog Intergrations Corporation

Part # TL431
Description  Adjustable Precision Shunt Regulator
Download  14 Pages
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Manufacturer  AIC [Analog Intergrations Corporation]
Direct Link  http://www.analog.com.tw
Logo AIC - Analog Intergrations Corporation

TL431 Datasheet(HTML) 1 Page - Analog Intergrations Corporation

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AIC431/TL431A/TL431
Adjustable Precision Shunt Regulator
Analog Integrations Corporation
Si-Soft Research Center
DS-431G-05 20120615
3A1, No.1, Li-Hsin Rd. I, Science Park, Hsinchu 300, Taiwan, R.O.C.
TEL: 886-3-5772500
FAX: 886-3-5772510
www.analog.com.tw
1
FEATURES
Precision Reference Voltage.
AIC431 :2.495V
0.5%
TL431A :2.495V
1.0%
TL431
:2.495V
1.6%
Sink Current Capability: 200mA.
Minimum
Cathode
Current
for
Regulation:
250
A.
Equivalent Full-Range Temperature Coefficient:
50 ppm/
C.
Fast Turn-On Response.
Low Dynamic Output Impedance: 0.08
.
Adjustable Output Voltage.
Low Output Noise.
Space Saving Packages: SOT-89, SOT-23,
TO-92 and SO-8.
APPLICATIONS
Linear Regulators.
Adjustable Supplies.
Switching Power Supplies.
Battery Operated Computers.
Instrumentation.
Computer Disk Drivers.
TYPICAL APPLICATION CIRCUIT
VIN
AIC431
+
VOUT
R1
R2
+
C2
C1
R3
VOUT=(1+R1/R2) VREF
Precision Regulator
DESCRIPTION
The AIC431, TL431A and TL431 are 3-
terminal
adjustable
precision
shunt
regulators
with
guaranteed
temperature
stability
over
the
applicable
extended
commercial temperature range. The output
voltage may be set at any level greater than
2.495V (VREF) up to 30V merely by selecting
two external resistors that act as a voltage
divider network. These devices have a
typical output impedance of 0.08
. Active
output circuitry provides a very sharp turn-on
characteristic,
making
these
devices
excellent improved replacements for zener
diodes in many applications.
The
precise
0.5% reference voltage
tolerance of the AIC431 makes it possible in
many applications to avoid the use of a
variable resistor, consequently saving cost
and eliminating drift and reliability problems
associated with it.


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