Datasheet Texas Instruments TL431LIAIDBZR

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Detailed Description

The TL431LI device is a three-terminal adjustable shunt regulator, with specified thermal stability over applicable automotive, commercial, and military temperature ranges.

The output voltage can be set to any value between V_ref (approximately 2.495 V) and 36 V, with two external resistors. These devices have a typical output impedance of 0.3 Ω. Active output circuitry provides a very sharp turn-on characteristic, making these devices excellent replacements for Zener diodes in many applications, such as onboard regulation, adjustable power supplies, and switching power supplies. This device is a pin-to-pin alternative to the industry standard TL431, with optimized I_ref and I_Idev performance. The lower I_ref and I_Idev values enable designers to achieve higher system accuracy and lower leakage current. The TL432LI device has exactly the same functionality and electrical specifications as the TL431LI device, but has a different pinout for the DBZ package.

The TL431LI device is offered in two grades, with initial tolerances (at 25°C) of 0.5% and 1%, for the B and A grade, respectively. In addition, low output drift versus temperature ensures good stability over the entire temperature range.

The TL43xLIxQ devices are characterized for operation from –40°C to 125°C.

Parametrics

Reference Type	Shunt
Output Type	Adjustable
Voltage - Output (Min/Fixed)	2.495 V
Voltage - Output (Max)	36 V
Current - Output	15 mA
Package / Case	SOT-23-3
Tolerance	-1~1 %
Operating Temperature	-40~85 °C
Current Cathode	1 mA
RoHS	Yes
Product Status	Active
Packaging	Cut Tape Tape & Reel

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TL432LI

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Manufacturer's Classification

• Power management > Voltage references > Shunt voltage references