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TL431 参数 Datasheet PDF下载

型号:
TL431
PDF下载:
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内容描述:
可调式精密并联稳压器( I级) [Adjustable Precision Shunt Regulator (I Grade)]
分类和应用:
稳压器
文件页数/大小:
8 页 / 315 K
品牌:
WINGS [ WING SHING COMPUTER COMPONENTS ]
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TL431I
FEATURES
Adjustable Precision Shunt Regulator (I Grade)
PIN CONNECTIONS
Programmable Output Voltage to 40V
Low Dynamic Output Impedance 0.2Ω
Sink Current Capability of 0.1 mA to 100 mA
Equivalent Full-Range Temperature Coefficient of 50 ppm/
o
C
Temperature Compensated for Operation over Full Rated
Operating Temperature Range
R
Low Output Noise Voltage
A
K
Fast Turn on Respons
Provided Pb-Free packages from the end of 2004
K
A
R
TO-92
SOT-89
TL431ICPK
R
A
K
TL431ICLP
* ESD tolerance (human body model) 2000V
* Operating Temperature Range -60~+125 •C
SO8
TL431ACMX
A
SOT-23
TL431ILT1
CATHODE
ANODE
ANODE
NC
1
2
3
4
8
7
6
5
REF
ANODE
ANODE
NC
R
K
DESCRIPTION
The TL431I is a 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 40 volts with two external resistors. These
devices have a typical dynamic output impedance of 0.2Ω. Active output circuitry provides a very sharp turn-on characteristic,
making these devices excellent replacement for zener diodes in many applications.
The TL431I is characterized for operation from -60
o
C to +125
o
C.
SYMBOL
FUNCTIONAL BLOCK DIAGRAM
ABSOLUTE MAXIMUM RATINGS
(Operating temperature range applies unless otherwise specified)
Characteristic
Cathode Voltage
Cathode Current Range (Continuous)
Reference Input Current Range
Power Dissipation at 25
o
C:
TO – 92 Package (R
!
JA
= 178
o
C/W)
SOT – 23 – 3 Package (R
!
JA
= 625
o
C/W)
Junction Temperature Range
Operating Temperature Range
Storage Temperature Range
Symbol
V
KA
I
K
I
REF
P
D
0.7
0.2
0 ~ 150
-60 ~+125
-65 ~ +150
W
W
o
C
o
o
Value
42
100 ~ 150
0.05 ~ 10
Unit
V
mA
mA
T
J
T
g
T
stg
C
C
1