ATL432LI-Q1 Regulator Datasheet

ATL432LI-Q1 Datasheet, PDF, Equivalent


Part Number

ATL432LI-Q1

Description

Programmable Shunt Regulator

Manufacture

etcTI

Total Page 30 Pages
Datasheet
Download ATL432LI-Q1 Datasheet


ATL432LI-Q1
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 stability over the entire temperature range.
2 Applications
Inverter and motor control
DC/DC converter
LED lighting
On-board charger (OBC)
Infotainment and cluster
Device Information(1)
PART NUMBER PACKAGE (PIN) BODY SIZE (NOM)
ATL43xLI
SOT-23 (3)
2.90 mm x 1.30 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Schematic
Input
VKA
IKA
Vref
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.

ATL432LI-Q1
ATL431LI-Q1
ATL432LI-Q1
SNVSBB0A – MAY 2019 – REVISED NOVEMBER 2019
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Device Comparison Table..................................... 3
6 Pin Configuration and Functions ......................... 3
7 Specifications......................................................... 4
7.1 Absolute Maximum Ratings ...................................... 4
7.2 ESD Ratings.............................................................. 4
7.3 Recommended Operating Conditions....................... 4
7.4 Thermal Information .................................................. 4
7.5 Electrical Characteristics........................................... 5
7.6 Typical Characteristics .............................................. 6
8 Parameter Measurement Information .................. 9
8.1 Temperature Coefficient............................................ 9
8.2 Dynamic Impedance ............................................... 10
9 Detailed Description ............................................ 11
9.1 Overview ................................................................. 11
9.2 Functional Block Diagram ....................................... 11
9.3 Feature Description................................................. 13
9.4 Device Functional Modes........................................ 13
10 Applications and Implementation...................... 14
10.1 Application Information.......................................... 14
10.2 Typical Applications .............................................. 14
10.3 System Examples ................................................. 24
11 Power Supply Recommendations ..................... 27
12 Layout................................................................... 27
12.1 Layout Guidelines ................................................. 27
12.2 Layout Example .................................................... 27
13 Device and Documentation Support ................. 28
13.1 Device Support...................................................... 28
13.2 Documentation Support ........................................ 28
13.3 Related Links ........................................................ 28
13.4 Receiving Notification of Documentation Updates 28
13.5 Support Resources ............................................... 28
13.6 Trademarks ........................................................... 28
13.7 Electrostatic Discharge Caution ............................ 29
13.8 Glossary ................................................................ 29
14 Mechanical, Packaging, and Orderable
Information ........................................................... 29
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Original (May 2019) to Revision A
Page
• Changed device status from Advance Information to Production Data ................................................................................. 1
2 Submit Documentation Feedback
Copyright © 2019, Texas Instruments Incorporated
Product Folder Links: ATL431LI-Q1 ATL432LI-Q1


Features Product Folder Order Now Technical Doc uments Tools & Software Support & Com munity ATL431LI-Q1 ATL432LI-Q1 SNVSBB0 A – MAY 2019 – REVISED NOVEMBER 201 9 ATL431LI-Q1 / ATL432LI-Q1 High Bandw idth Low-IQ Programmable Shunt Regulato r 1 Features •1 Qualified for automo tive applications • AEC-Q100 qualifie d with the following results: – Devic e temperature grade 1: –40°C to +125 °C ambient operating temperature • R eference voltage tolerance at 25°C – 0.5% (B grade) – 1% (A grade) • Mi nimum 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) • Ref erence input current IREF: 0.4 μA (max ) • Deviation of reference input curr ent 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, comm.
Keywords ATL432LI-Q1, datasheet, pdf, etcTI, Programmable, Shunt, Regulator, TL432LI-Q1, L432LI-Q1, 432LI-Q1, ATL432LI-Q, ATL432LI-, ATL432LI, Equivalent, stock, pinout, distributor, price, schematic, inventory, databook, Electronic, Components, Parameters, parts, cross reference, chip, Semiconductor, circuit, Electric, manual, substitute




@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)