Datasheet TL432LI-Q1 (Texas Instruments) - 2

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TL431LI-Q1 TL432LI-Q1
SNVSBA4A – MAY 2019 – REVISED NOVEMBER 2019
www.ti.com Table of Contents 1 Features
.. 1 9.4 Device Functional Modes.. 12
2 Applications
... 1
10 Applications and Implementation
.. 13
3 Description
... 1 10.1 Application Information.. 13
4 Revision History
... 2 10.2 Typical Applications .. 13
5 Device Comparison Table
... 3 10.3 System Examples ... 22
6 Pin Configuration and Functions
... 3
11 Power Supply Recommendations
... 25
7 Specifications
... 4
12 Layout
... 25 12.1 Layout Guidelines ... 25 7.1 Absolute Maximum Ratings .. 4 12.2 Layout Example .. 25 7.2 ESD Ratings.. 4 7.3 Recommended Operating Conditions ... 4
13 Device and Documentation Support
... 26 7.4 Thermal Information .. 4 13.1 Device Support.. 26 7.5 Electrical Characteristics... 5 13.2 Documentation Support .. 26 7.6 Typical Characteristics .. 6 13.3 Related Links .. 26
8 Parameter Measurement Information
.. 9 13.4 Receiving Notification of Documentation Updates 26 13.5 Support Resources ... 26 8.1 Temperature Coefficient.. 9 13.6 Trademarks ... 27 8.2 Dynamic Impedance ... 10 13.7 Electrostatic Discharge Caution .. 27
9 Detailed Description
.. 11 13.8 Glossary .. 27 9.1 Overview ... 11
14 Mechanical, Packaging, and Orderable
9.2 Functional Block Diagram ... 11
Information
... 27 9.3 Feature Description... 12
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: TL431LI-Q1 TL432LI-Q1 Document Outline 1 Features 2 Applications 3 Description Table of Contents 4 Revision History 5 Device Comparison Table 6 Pin Configuration and Functions 7 Specifications 7.1 Absolute Maximum Ratings 7.2 ESD Ratings 7.3 Recommended Operating Conditions 7.4 Thermal Information 7.5 Electrical Characteristics 7.6 Typical Characteristics 8 Parameter Measurement Information 8.1 Temperature Coefficient 8.2 Dynamic Impedance 9 Detailed Description 9.1 Overview 9.2 Functional Block Diagram 9.3 Feature Description 9.4 Device Functional Modes 9.4.1 Open Loop (Comparator) 9.4.2 Closed Loop 10 Applications and Implementation 10.1 Application Information 10.2 Typical Applications 10.2.1 Comparator With Integrated Reference 10.2.2 Design Requirements 10.2.3 Detailed Design Procedure 10.2.3.1 Basic Operation 10.2.3.2 Output Voltage and Logic Input Level 10.2.4 Application Curves 10.2.5 Precision LED Lighting Current Sink Regulator 10.2.5.1 Design Requirements 10.2.5.2 Detailed Design Procedure 10.2.6 Shunt Regulator/Reference 10.2.6.1 Design Requirements 10.2.6.2 Detailed Design Procedure 10.2.6.3 Application Curves 10.2.7 Isolated Flyback with Optocoupler 10.2.7.1 Design Requirements 10.2.7.2 Detailed Design Procedure 10.3 System Examples 11 Power Supply Recommendations 12 Layout 12.1 Layout Guidelines 12.2 Layout Example 13 Device and Documentation Support 13.1 Device Support 13.1.1 Device Nomenclature 13.2 Documentation Support 13.2.1 Related Documentation 13.3 Related Links 13.4 Receiving Notification of Documentation Updates 13.5 Support Resources 13.6 Trademarks 13.7 Electrostatic Discharge Caution 13.8 Glossary 14 Mechanical, Packaging, and Orderable Information