Sample & Support & Product Tools & Technical Community Buy Folder Documents Software bq24100,bq24103,bq24103A,bq24104,bq24105 bq24108,bq24109,bq24113,bq24113A,bq24115 SLUS606PJUNE 2004REVISED NOVEMBER 2015 bq241xx Synchronous Switched-Mode, Li-Ion and Li-Polymer Charge-Management IC With Integrated Power FETs (bqSWITCHER) 1 Features 2 Applications 1 Ideal For Highly Efficient Charger Designs For Handheld Products Single-, Two-, or Three-Cell Li-Ion and Li-Polymer Portable Media Players Battery Packs Industrial and Medical Equipment bq24105 Also for LiFePO Battery (see Using 4 Portable Equipment bq24105 to Charge the LiFePO Battery) 4 Integrated Synchronous Fixed-Frequency PWM 3 Description Controller Operating at 1.1 MHz With 0% to 100% The bqSWITCHER series are highly integrated Li- Duty Cycle ion and Li-polymer switch-mode charge management devices targeted at a wide range of portable Integrated Power FETs for Up To 2-A Charge applications. The bqSWITCHER series offers Rate integrated synchronous PWM controller and power High-Accuracy Voltage and Current Regulation FETs, high-accuracy current and voltage regulation, Available in Both Stand-Alone (Built-In Charge charge preconditioning, charge status, and charge Management and Control) and System-Controlled termination, in a small, thermally enhanced VQFN (Under System Command) Versions package. The system-controlled version provides additional inputs for full charge management under Status Outputs for LED or Host Processor system control. Interface Indicates Charge-In-Progress, Charge Completion, Fault, and AC-Adapter Present The bqSWITCHER charges the battery in three Conditions phases: conditioning, constant current, and constant voltage. Charge is terminated based on user- 20-V Maximum Voltage Rating on IN and OUT selectable minimum current level. A programmable Pins charge timer provides a safety backup for charge High-Side Battery Current Sensing termination. The bqSWITCHER automatically Battery Temperature Monitoring restarts the charge cycle if the battery voltage falls below an internal threshold. The bqSWITCHER Automatic Sleep Mode for Low Power automatically enters sleep mode when V supply is CC Consumption removed. System-Controlled Version Can Be Used in NiMH and NiCd Applications (1) Device Information Reverse Leakage Protection Prevents Battery PART NUMBER PACKAGE BODY SIZE (NOM) Drainage bq241xx VQFN (20) 3.50 mm 4.50 mm Thermal Shutdown and Protection (1) For all available packages, see the orderable addendum at Built-In Battery Detection the end of the data sheet. Available in 20-Pin, 3.50 mm 4.50 mm VQFN Package Typical 1-Cell Application Battery L BQ24100 OUT Pack R SNS V IN 3 IN OUT 1 Pack+ 1.5 KW 1.5 KW 1.5 KW 10mH 0.1W C IN 10mF Adapter Done Charge C 4 IN OUT 20 OUT D1 Present 10mF Pack- 6 VCC PGND 17 MMBZ18VALT1 103AT 2 STAT1 PGND 18 19 STAT2 SNS 15 5 PG BAT 14 7.5 KW R ISET1 VTSB 7 TTC ISET1 8 7.5 KW 16 CE ISET2 9 9.31 KW RT1 C TTC 0.1mF R ISET2 10 VSS TS 12 RT2 13 NC VTSB 11 442 KW 0.1mF 0.1mF 0.1mF 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA.bq24100,bq24103,bq24103A,bq24104,bq24105 bq24108,bq24109,bq24113,bq24113A,bq24115 SLUS606PJUNE 2004REVISED NOVEMBER 2015 www.ti.com Table of Contents 1 Features.................................................................. 1 9 Application and Implementation........................ 24 9.1 Application Information............................................ 24 2 Applications........................................................... 1 9.2 Typical Application ................................................. 24 3 Description............................................................. 1 9.3 System Examples................................................... 28 4 Revision History..................................................... 2 10 Power Supply Recommendations..................... 32 5 Device Options....................................................... 4 11 Layout................................................................... 32 6 Pin Configuration and Functions......................... 5 11.1 Layout Guidelines................................................. 32 7 Specifications......................................................... 6 11.2 Layout Example.................................................... 34 7.1 Absolute Maximum Ratings ..................................... 6 11.3 Thermal Considerations........................................ 34 7.2 ESD Ratings.............................................................. 6 12 Device and Documentation Support................. 35 7.3 Recommended Operating Conditions....................... 7 12.1 Device Support...................................................... 35 7.4 Thermal Information.................................................. 7 12.2 Documentation Support........................................ 35 7.5 Electrical Characteristics........................................... 7 12.3 Related Links........................................................ 35 7.6 Dissipation Ratings................................................. 10 12.4 Community Resources.......................................... 35 7.7 Typical Characteristics............................................ 10 12.5 Trademarks........................................................... 35 8 Detailed Description............................................ 11 12.6 Electrostatic Discharge Caution............................ 36 8.1 Overview................................................................. 11 12.7 Glossary................................................................ 36 8.2 Functional Block Diagram....................................... 12 13 Mechanical, Packaging, and Orderable 8.3 Feature Description................................................. 13 Information........................................................... 36 8.4 Device Functional Modes........................................ 22 4 Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision O (March 2010) to Revision P 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 M (August 2008) to Revision N Page Added part number bq24104.................................................................................................................................................. 1 Added part number bq24104 to the Ordering Information..................................................................................................... 4 Deleted Product Preview from bq24104RHLR....................................................................................................................... 4 Deleted Product Preview from bq24104RHLT....................................................................................................................... 4 Added bq24104 to the Terminal Functions table.................................................................................................................... 5 Added part number bq24104 to the Deglitch time.................................................................................................................. 8 Added bq24104 to Table 2................................................................................................................................................... 16 Added part number bq24104 to Figure 16 .......................................................................................................................... 28 Changes from Revision L (December 2007) to Revision M Page Changed specifications and symbols for (cold, hot, and cutoff) temperature thresholds....................................................... 8 Changed equation definitions............................................................................................................................................... 13 Changed equation definitions............................................................................................................................................... 27 Changes from Revision K (November 2007) to Revision L Page Changed Added figure almost identical to Figure 3. Changed RISET2 to 20 kohms.......................................................... 31 Added Changed resistor bridge values 301 to 143, 100 to 200 Kohms............................................................................... 31 2 Submit Documentation Feedback Copyright 20042015, Texas Instruments Incorporated Product Folder Links: bq24100 bq24103 bq24103A bq24104 bq24105 bq24108 bq24109 bq24113 bq24113A bq24115