BQ25120_16 Datasheet, PDF (2/68 Pages) Texas Instruments – Highly Integrated Battery Charge Management Solution

BQ25120, BQ25121
SLUSBZ9B – AUGUST 2015 – REVISED MAY 2016
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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 Device Comparison Table..................................... 3
7 Pin Configuration and Functions ......................... 4
8 Specifications......................................................... 6
8.1 Absolute Maximum Ratings ...................................... 6
8.2 ESD Ratings.............................................................. 6
8.3 Recommended Operating Conditions....................... 6
8.4 Thermal Information .................................................. 7
8.5 Electrical Characteristics........................................... 8
8.6 Timing Requirements ............................................. 12
8.7 Typical Characteristics ............................................ 15
9 Detailed Description ............................................ 17
9.1 Overview ................................................................. 17
9.2 Functional Block Diagram ....................................... 17
9.3 Feature Description................................................. 18
9.4 Device Functional Modes........................................ 28
9.5 Programming .......................................................... 31
9.6 Register Maps ........................................................ 34
10 Application and Implementation........................ 45
10.1 Application Information.......................................... 45
10.2 Typical Application ............................................... 45
11 Power Supply Recommendations ..................... 60
12 Layout................................................................... 61
12.1 Layout Guidelines ................................................. 61
12.2 Layout Example .................................................... 61
13 Device and Documentation Support ................. 62
13.1 Device Support...................................................... 62
13.2 Related Links ........................................................ 62
13.3 Community Resources.......................................... 62
13.4 Trademarks ........................................................... 62
13.5 Electrostatic Discharge Caution ............................ 62
13.6 Glossary ................................................................ 62
14 Mechanical, Packaging, and Orderable
Information ........................................................... 62
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision A (August 2015) to Revision B
Page
• Added BQ25121 device to data sheet ................................................................................................................................... 3
• Added BQ25121 device to BATTERY-PACK NTC MONITOR specs in the Electrical Characteristics table....................... 10
• Added Figure 14 typical characteristics graph .................................................................................................................... 15
• Changed text From: '.... current out of ISET is 1/400 (±10%)...." To: " ...current out of ISET is 1/100 (±10%)..." in
Charge Current Programming by External Components (ISET) section.............................................................................. 22
Changes from Original (August 2015) to Revision A
Page
• Changed From: Product Preview To: Production data .......................................................................................................... 1
2
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