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Design TL1431, TL1431M
SLVS062N – DECEMBER 1991 – REVISED OCTOBER 2016 TL1431 Precision Programmable Reference
1 Features 3 Description The TL1431 device is a precision programmable
reference with specified thermal stability over
automotive, commercial, and military temperature
ranges. The output voltage can be set to any value
between VI(ref) (approximately 2.5 V) and 36 V with
two external resistors (see Figure 25). This device
has a typical output impedance of 0.2 О©. Active
output circuitry provides a sharp turnon characteristic,
making the device an excellent replacement for Zener
diodes and other types of references in applications
such as onboard regulation, adjustable power
supplies, and switching power supplies. 1 0.4% Initial Voltage Tolerance
0.2-О© Typical Output Impedance
Fast Turnon (500 ns)
Sink Current Capability (1 mA to 100 mA) …
