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ATL431LI-Q1

Part Number	ATL431LI-Q1
Manufacturer	Texas Instruments
Description	Programmable Shunt Regulator
Published	Jan 3, 2020
Detailed Description	Product Folder Order Now Technical Documents Tools & Software Support & Community ATL431LI-Q1 ATL432LI-Q1 SNVSBB0A ...
Datasheet	ATL431LI-Q1 PDF File

Overview

Product Folder Order Now Technical Documents Tools & Software Support & Community ATL431LI-Q1 ATL432LI-Q1 SNVSBB0A – MAY 2019 – REVISED NOVEMBER 2019 ATL431LI-Q1 / ATL432LI-Q1 High Bandwidth Low-IQ Programmable Shunt Regulator 1 Features •1 Qualified for automotive applications • AEC-Q100 qualified with the following results: – Device temperature grade 1: –40°C to +125°C ambient operating temperature • Reference voltage tolerance at 25°C – 0.
5% (B grade) – 1% (A grade) • Minimum typical output voltage: 2.
5 V • Adjustable output voltage: Vref to 36 V • Operation from −40°C to +125°C • 27 mV maximum temperature drift • 0.
3-Ω typical output impedance • Sink-current capability – Imin = 0.
08 mA (max) – IKA = 15 mA (max) • Reference input current IREF: 0.
4 μA (max) • Deviation of reference input current over temperature, II(dev): 0.
3 μA (max) 3 Description The ATL43xLI-Q1 is a three-terminal adjustable shunt regulator, with specified thermal stability over applicable automotive, commercial, and military temperature ranges.
Its output voltage can be set to any value between Vref (approximately 2.
5 V) and 36 V with two external resistors.
The device has a typical output impedance of 0.
3 Ω.
Its active output circuitry provides a very sharp turn-on characteristic, making it an excellent replacement 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 TL431LI-Q1 and TL432LI-Q1, with lower minimum operating current to help reduce system power consumption.
The ATL432LI-Q1 has exactly the same functionality and electrical specifications as the ATL431LI-Q1, but has a different pinout for the DBZ package.
The ATL431LI-Q1 is offered in two grades, with initial tolerances (at 25°C) of 0.
5%, and 1%, for the B and A grade, respectively.
The ATL43xLI-Q1 is characterized for operation from –40°C to +125°C, and its low output drift versus temperature ensures good s...

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ATL431LI-Q1 Programmable Shunt Regulator - Texas Instruments

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