BQ24262_15 Datasheet, PDF (2/56 Pages) Texas Instruments – bq2426x 3-A, 30-V, Host-Controlled Single-Input, Single-Cell Switched-Mode Li-Ion Battery Charger With Power-Path Management and USB-OTG Support

Not Recommended for New Designs : bq24260, bq24261
bq24260, bq24261, bq24261M, bq24262
SLUSBU4D – DECEMBER 2013 – REVISED APRIL 2015
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Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Application Schematic .......................................... 1
5 Revision History..................................................... 2
6 Device Comparison Table..................................... 4
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........................................... 7
8.6 Switching Characteristics ........................................ 11
8.7 Typical Characteristics ............................................ 11
9 Detailed Description ............................................ 13
9.1 Overview ................................................................. 13
9.2 Functional Block Diagram ....................................... 14
9.3 Feature Description................................................. 16
9.4 Device Functional Modes........................................ 16
9.5 Programming........................................................... 27
9.6 Register Maps ......................................................... 30
10 Application and Implementation........................ 38
10.1 Application Information.......................................... 38
10.2 Typical Application ................................................ 38
11 Power Supply Recommendations ..................... 43
11.1 Requirements for SYS Output .............................. 43
11.2 Requirements for Charging ................................... 43
12 Layout................................................................... 43
12.1 Layout Guidelines ................................................. 43
12.2 Layout Example .................................................... 44
13 Device and Documentation Support ................. 45
13.1 Documentation Support ....................................... 45
13.2 Related Links ........................................................ 45
13.3 Trademarks ........................................................... 45
13.4 Electrostatic Discharge Caution ............................ 45
13.5 Glossary ................................................................ 45
14 Mechanical, Packaging, and Orderable
Information ........................................................... 45
5 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision C (March 2015) to Revision D
Page
• Added device bq24261M ....................................................................................................................................................... 1
• Changed minimum capacitance for DRV pin from 1 µF to 2.2 µF. ........................................................................................ 5
• Changed absolute max voltage for DRV, SYS from 5.0 V to 5.5 V ....................................................................................... 6
• Changed VSYSREG(HI) from VBATREG+1.6% to original VBATREG+2.5% typical ........................................................... 7
• Added bq24261M VSYSREG(HI) = 1.6% typical .................................................................................................................. 7
• Changed ILIM(DISCH) from 9 A to original 6 A typical .......................................................................................................... 7
• Added bq24261M ILIM(DISCH) = 9 A typical ........................................................................................................................ 7
• Added Explanation for Reg05h B4 Force D+/D- ................................................................................................................. 36
• Changed bypass capacitor value from 1 µF to 2.2 µF in the Typical Application Circuit .................................................... 38
Changes from Revision B (March 2014) to Revision C
Page
• Added ESD Ratings table, 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
Changes from Revision A (January 2014) to Revision B
Page
• Changed global format to new data sheet schema ................................................................................................................ 1
• Changed device number from "bq24262A" to "bq24262" throughout .................................................................................... 1
• Changed V_BATREG accuracy for 0-125C, added 0-85C, and added mV specific numbers to Elec Charateristics table. ........ 8
• Added Switching Characteristics .......................................................................................................................................... 11
• Added Power Supply Recommendations ............................................................................................................................. 43
• Added Device and Documentation Support ......................................................................................................................... 45
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Product Folder Links: bq24260 bq24261 bq24261M bq24262