LM3421-Q1, LM3423-Q1
SNVSB95 – JULY 2019
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Device Comparison ............................................... 3
6 Pin Configuration and Functions ......................... 4
7 Specifications......................................................... 5
7.1 Absolute Maximum Ratings ..................................... 5
7.2 ESD Ratings ............................................................ 6
7.3 Recommended Operating Conditions....................... 6
7.4 Thermal Information .................................................. 6
7.5 Electrical Characteristics .......................................... 7
7.6 Typical Characteristics ........................................... 11
8 Detailed Description ............................................ 13
8.1 Overview ................................................................. 13
8.2 Functional Block Diagram ....................................... 13
8.3 Feature Description................................................. 14
9 Application and Implementation ........................ 28
9.1 Application Information............................................ 28
9.2 Typical Applications ................................................ 32
10 Power Supply Recommendations ..................... 65
10.1 General Recommendations .................................. 65
10.2 Input Supply Current Limit .................................... 65
11 Layout................................................................... 65
11.1 Layout Guidelines ................................................. 65
11.2 Layout Example .................................................... 66
12 Device and Documentation Support ................. 67
12.1 Device Support...................................................... 67
12.2 Related Links ........................................................ 67
12.3 Community Resources.......................................... 67
12.4 Trademarks ........................................................... 67
12.5 Electrostatic Discharge Caution ............................ 67
12.6 Glossary ................................................................ 67
13 Mechanical, Packaging, and Orderable
Information ........................................................... 67
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
DATE
July 2019
REVISION
*
NOTES
Initial release of separate data sheet for atomotive grade devices. For revision history
before December 2018, see the LM3421 and LM3423 data sheet.
Changed EN Pulldown Resistance maximum value for LM3421-Q1 and LM3423-Q1 from:
1.3 MΩ to: 2.85 MΩ in the table.
Changed EN Pulldown Resistance maximum value for LM3421-Q0 and LM3423-Q0 from:
1.3 MΩ to: 3.15 MΩ in the table.
Changed EN Pulldown Resistance minimum value from: 0.45 MΩ to: 0.245 MΩ in the table.
2 Submit Documentation Feedback
Copyright © 2019, Texas Instruments Incorporated
Product Folder Links: LM3421-Q1 LM3423-Q1