BQ24725A_17 Datasheet, PDF (2/47 Pages) Texas Instruments – 1-4 Cell Li+ Battery SMBus Charge Controller with N-Channel Power MOSFET Selector and Advanced Circuit Protection

bq24725A
SLUSAL0A – SEPTEMBER 2011 – REVISED AUGUST 2014
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Pin Configuration and Functions ......................... 3
6 Specifications......................................................... 4
6.1 Absolute Maximum Ratings ...................................... 4
6.2 Handling Ratings....................................................... 5
6.3 Recommended Operating Conditions....................... 5
6.4 Thermal Information .................................................. 5
6.5 Electrical Characteristics........................................... 6
6.6 Timing Characteristics............................................. 10
6.7 Typical Characteristics ............................................ 10
7 Parameter Measurement Information ................ 12
8 Detailed Description ............................................ 13
8.1 Overview ................................................................. 13
8.2 Functional Block Diagram ....................................... 14
8.3 Feature Description................................................. 15
8.4 Device Functional Modes........................................ 16
8.5 Register Maps ......................................................... 22
9 Application and Implementation ........................ 28
9.1 Application Information............................................ 28
9.2 Typical Application .................................................. 28
9.3 Application Curves .................................................. 35
9.4 System Examples .................................................. 35
10 Power Supply Recommendations ..................... 36
11 Layout................................................................... 37
11.1 Layout Guidelines ................................................. 37
11.2 Layout Example ................................................... 38
12 Device and Documentation Support ................. 39
12.1 Third-Party Products Disclaimer ........................... 39
12.2 Trademarks ........................................................... 39
12.3 Electrostatic Discharge Caution ............................ 39
12.4 Glossary ................................................................ 39
13 Mechanical, Packaging, and Orderable
Information ........................................................... 39
4 Revision History
Changes from Original (September 2011) to Revision A
Page
• Changed the format to the new TI standard .......................................................................................................................... 1
• Added the Device Information table ...................................................................................................................................... 1
• Added LODRV, HIDRV, and PHASE (2% duty cycle) to the Abs Max Table ........................................................................ 4
• Added the Handling Ratings table .......................................................................................................................................... 5
2
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