BQ24735_17 Datasheet, PDF (2/46 Pages) Texas Instruments – 1- to 4-Cell Li+ Battery SMBus Charge Controller for Supporting Turbo Boost Mode With N-Channel Power MOSFET Selector

bq24735
SLUSAK9B – SEPTEMBER 2011 – REVISED APRIL 2015
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Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Description (continued)......................................... 3
6 Pin Configuration and Functions ......................... 3
7 Specifications......................................................... 4
7.1 Absolute Maximum Ratings ...................................... 4
7.2 ESD Ratings.............................................................. 5
7.3 Recommended Operating Conditions....................... 5
7.4 Thermal Information ................................................. 5
7.5 Electrical Characteristics........................................... 5
7.6 Timing Requirements ................................................ 9
7.7 Typical Characteristics ............................................ 10
8 Parameter Measurement Information ................ 12
9 Detailed Description ............................................ 13
9.1 Overview ................................................................. 13
9.2 Functional Block Diagram ....................................... 14
9.3 Feature Description................................................. 15
9.4 Device Functional Modes........................................ 18
9.5 Programming........................................................... 19
9.6 Register Maps ......................................................... 22
10 Application and Implementation........................ 27
10.1 Application Information.......................................... 27
10.2 Typical Application ............................................... 27
10.3 System Examples ................................................. 33
11 Power Supply Recommendations ..................... 35
12 Layout................................................................... 35
12.1 Layout Guidelines ................................................. 35
12.2 Layout Example .................................................... 37
13 Device and Documentation Support ................. 38
13.1 Device Support...................................................... 38
13.2 Documentation Support ....................................... 38
13.3 Trademarks ........................................................... 38
13.4 Electrostatic Discharge Caution ............................ 38
13.5 Glossary ................................................................ 38
14 Mechanical, Packaging, and Orderable
Information ........................................................... 38
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision A (January 2013) to Revision B
Page
• Added ESD Ratings table, Overview, Feature Description section, Device Functional Modes, Application and
Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation
Support section, and Mechanical, Packaging, and Orderable Information section................................................................ 1
• Changed the format to the new template .............................................................................................................................. 1
• Deleted ", and is available in a 20-pin, 3.5x3.5 mm² QFN package" from last paragraph in Description section.
Added the Device Information table on page 1. .................................................................................................................... 3
• Added LODRV, HIDRV, and PHASE (2% duty cycle) to the Absolute Maximum Ratings table ........................................... 4
Changes from Original (September 2011) to Revision A
Page
• Added V_(ESD) specs ................................................................................................................................................................ 5
2
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