TL431 Просмотр технического описания (PDF) - IK Semicon Co., Ltd
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TL431 Datasheet PDF : 12 Pages
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TECHNICAL DATA
Programmable Precision Reference
TL431
FEATURES
• 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/oC
• Temperature Compensated for Operation over
Full Rated Operating Temperature Range
• Low Output Noise Voltage
• Fast Turn on Response
• TO-92, SOP- 8, SOT-23, SOT-89 packages
PIN CONNECTIONS
ANODE
REFERENCE CATHODE
DESCRIPTION
The TL431 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 TL431 is characterized for operation from -25oC to +85oC.
SYMBOL
FUNCTIONAL BLOCK DIAGRAM
ABSOLUTE MAXIMUM RATINGS
(Operating temperature range applies unless otherwise specified)
Characteristic
Symbol
Cathode Voltage
VKA
Cathode Current Range (Continuous)
IK
Reference Input Current Range
IREF
Power Dissipation at 25oC:
PD
SOP, TO – 92 Package (RJA = 178oC/W)
SOT Package (RJA = 625oC/W)
Junction Temperature Range
TJ
Operating Temperature Range
Tg
Storage Temperature Range
Tstg
Value
40
-100 ~ 150
0.05 ~ 10
0.7
0.2
-40 ~ 150
-40 ~ +85
-65 ~ +150
Unit
V
mA
mA
W
W
oC
oC
oC
Rev. 00
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