
* Programmable output voltage to 36volts
* Low dynamic output impedance 0.20 typical
* Sink current capability of 1.0 to 100mA
* Equivalent full-range temperature
coefficient
of 50 ppm
℃
typical
* Temperature compensated for operation
over full rated operating temperature range
* Low output noise voltage
* Fast turn-on response
The TL 431/TL 431A are three-terminal
adjustable regulator series with a guaranteed
thermal stability over applicable temperature
ranges. The output voltage may be set to any
value between VREF (approximately 2.5
volts) and 36 volts with two external resistors.
These devices have a gypical dynamic
output impedanceof 2.0W Active oupput
circuity provides a very sharp turn-on
characteristic making these devices excel
lent replacement for zener diodes in many
applications
Features
Description
Absolute maximum ratings
Recommended Operating conditions
Parameter
Cathode voltage
Cathode Current
Value
Value
Value
VKA
IKA
Symbol
V
MA
Unit
-
36
VREF
-
100
1.0
Parameter
Cathode voltage
Cathode current Range (Continuous)
Reference Input Current Range
Operating Temperature Range
Storage Temperature Range
Power dissipation
D,Z Sffix Package
N Suffix Package
Value
VKA
IKA
IREF
PD
TOPR
TSTG
Symbol
V
MAI
MA
MW
MW
℃
℃
Unit
37
-100 ~ +150
0.05 ~ +10
770
1000
-25 ~ +85
-65 ~ +150
TO-92
1
1. Ref 2. Arode 3. Cathode
2.5 Vref
ANODE
CATHODE(K)
ANODE(A)
CATHODE
REFERENCE
REFERENCE(R)
21
5.4 SMPS PROGRAMMABLE SHUNT REGULATOR
(FAIRCHILD TL 431)
DVD Service Manual
Содержание A-211
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