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BQ2971 Datasheet(PDF) 2 Page - Texas Instruments |
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BQ2971 Datasheet(HTML) 2 Page - Texas Instruments |
2 / 31 page 2 bq2970, bq2971, bq2972, bq2973 SLUSBU9C – MARCH 2014 – REVISED MARCH 2016 www.ti.com Product Folder Links: bq2970 bq2971 bq2972 bq2973 Submit Documentation Feedback Copyright © 2014–2016, Texas Instruments Incorporated Table of Contents 1 Features .................................................................. 1 2 Applications ........................................................... 1 3 Description ............................................................. 1 4 Revision History..................................................... 2 5 Device Configurations........................................... 3 6 Pin Configuration and Functions ......................... 4 6.1 Pin Descriptions ........................................................ 4 7 Specifications......................................................... 5 7.1 Absolute Maximum Ratings ...................................... 5 7.2 ESD Ratings.............................................................. 5 7.3 Recommended Operating Conditions ....................... 5 7.4 Thermal Information .................................................. 5 7.5 DC Characteristics .................................................... 6 7.6 Programmable Fault Detection Thresholds ............. 6 7.7 Programmable Fault Detection Timer Ranges ........ 7 7.8 Typical Characteristics .............................................. 7 8 Parameter Measurement Information ................ 11 8.1 Timing Charts.......................................................... 11 8.2 Test Circuits ............................................................ 13 8.3 Test Circuit Diagrams ............................................. 15 9 Detailed Description ............................................ 15 9.1 Overview ................................................................. 15 9.2 Functional Block Diagram ....................................... 16 9.3 Feature Description ................................................ 16 9.4 Device Functional Modes........................................ 16 10 Applications and Implementation...................... 20 10.1 Application Information.......................................... 20 10.2 Typical Application ................................................ 20 11 Power Supply Recommendations ..................... 23 12 Layout................................................................... 23 12.1 Layout Guidelines ................................................ 23 12.2 Layout Example .................................................... 23 13 Device and Documentation Support ................. 24 13.1 Related Links ........................................................ 24 13.2 Community Resources.......................................... 24 13.3 Trademarks ........................................................... 24 13.4 Electrostatic Discharge Caution ............................ 24 13.5 Glossary ................................................................ 24 14 Mechanical, Packaging, and Orderable Information ........................................................... 24 4 Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision B (November, 2015) to Revision C Page • Added the device numbers bq2971, bq2972, bq2973. Changed document title to bq297xx................................................. 1 • Added bq29708~bq29733 to Device Configurations table. Clarified recovery delay and moved info to footnote 2 .............. 3 • Changed UVP release voltage value based on 100mV hysteresis from UVP threshold ..................................................... 20 • Added Related Links table.................................................................................................................................................... 24 Changes from Revision A (June, 2014) to Revision B Page • Changed the device number to bq2970 ................................................................................................................................ 1 • Deleted the Related Links table from the Device and Documentation Support section....................................................... 24 Changes from Original (March, 2014) to Revision A Page • Changed part number in document to "bq297xy" from "bq29700"......................................................................................... 1 • Added notes to see the orderable addendum and Released Device Configurations table ................................................... 1 • Added Device Configurations table for part numbers bq29700 through bq29707 ................................................................. 3 • Changed Terminal to Pin ....................................................................................................................................................... 4 • Added ohm symbol to value .................................................................................................................................................. 6 • Changed "RANGE" to "CONDITION" and "ACCURACY" to "MIN, TYP, and MAX" column headings ................................ 6 • Added prefix "Factory Device Configuration:" ....................................................................................................................... 6 • Added Factory Programmable Options reference ............................................................................................................... 15 • Added Factory Programmable Options table ....................................................................................................................... 15 |
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