TL431A Datasheet, PDF (1/7 Pages) Unisonic Technologies – PROGRAMMABLE PRECISION REFERENCE

TL431A
FEATURES
Adjustable Precision Shunt Regulator
PIN CONNECTIONS
• Programmable Output Voltage to 40V
• Low Dynamic Output Impedance 0.2Ω
K
• Sink Current Capability of 0.1 mA to 100 mA
• Equivalent Full-Range Temperature Coefficient of 50 ppm/^oC
A
• Temperature Compensated for Operation over Full Rated
TO-92
R
Operating Temperature Range
R
• Low Output Noise Voltage
• Fast Turn on Respons
A
K TL431ACLP--Bulk Pack
R
A
K
TL431ACLPM-Ammo Pack
• TO-92 or SOT-23 and SOT-89 ,SO8packages
SO8
TL431ACMX
A
CATHODE 1
8 REF
ANODE 2
ANODE 3
NC 4
7 ANODE
6 ANODE
5 NC
R
K
DESCRIPTION
SOT-89
TL431ACPK
SOT-23
TL431ALT1
The TL431A 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 36 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 TL431A is characterized for operation from -0^oC to +70^oC.
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 25^oC:
PD
TO – 92 Package (R_!JA = 178^oC/W)
SOT – 23 – 3 Package (R_!JA = 625^oC/W)
Junction Temperature Range
TJ
Operating Temperature Range
Tg
Storage Temperature Range
Tstg
1
Value
40
100 ~ 150
0.05 ~ 10
0.7
0.2
0 ~ 150
0 ~ 70
-65 ~ +150
Unit
V
mA
mA
W
W
o_C
o_C
o_C