TL431ACLPR

The TL431 and TL432 devices are three-terminal
adjustable shunt regulators, with specified thermal
stability over applicable automotive, commercial, and
military temperature ranges. The output voltage can
be set to any value between Vref (approximately
2.5V) and 36V, with two external resistors. These
devices have a typical output impedance of 0.2Ω.
Active output circuitry provides a very sharp turnon characteristic, making these devices excellent
replacements for Zener diodes in many applications,
such as on-board regulation, adjustable power
supplies, and switching power supplies. The TL432
device has exactly the same functionality and
electrical specifications as the TL431 device, but has
different pinouts for the DBV, DBZ, and PK packages.
Both the TL431 and TL432 devices are offered in
three grades, with initial tolerances (at 25°C) of
0.5%, 1%, and 2%, for the B, A, and standard
grade, respectively. In addition, low output drift versus
temperature verifies good stability over the entire
temperature range.
The TL43xxC devices are characterized for operation
from 0°C to 70°C, the TL43xxI devices are
characterized for operation from –40°C to 85°C, and
the TL43xxQ devices are characterized for operation
from –40°C to 125°C.


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    SPECIFICATION

    • Reference voltage tolerance at 25°C
    – 0.5% (B grade)
    – 1% (A grade)
    – 2% (Standard grade)
    • Adjustable output voltage: Vref to 36V
    • Operation from −40°C to 125°C
    • Typical temperature drift (TL43xB)
    – 6mV (C temp)
    – 14mV (I temp, Q temp)
    • Low Output Noise
    • 0.2Ω Typical output impedance
    • Sink-current capability: 1mA to 100mA