16 12 6 14 4 Sample & Support & Product Tools & Technical Community Buy Folder Documents Software bq24072,bq24073,bq24074,bq24075,bq24079 SLUS810KSEPTEMBER 2008REVISED MARCH 2015 bq2407x 1.5-A USB-Friendly Li-Ion Battery Charger and Power-Path Management IC 1 Features 2 Applications 1 Fully Compliant USB Charger Smart Phones Selectable 100-mA and 500-mA Maximum Portable Media Players Input Current Portable Navigation Devices 100-mA Maximum Current Limit Ensures Low-Power Handheld Devices Compliance to USB-IF Standard Input-Based Dynamic Power Management 3 Description (V -DPM) for Protection Against Poor USB The bq2407x series of devices are integrated Li-Ion IN Sources linear chargers and system power path management devices targeted at space-limited portable 28-V Input Rating with Overvoltage Protection applications. The devices operate from either a USB Integrated Dynamic Power Path Management port or an AC adapter and support charge currents up (DPPM) Function Simultaneously and to 1.5 A. The input voltage range with input Independently Powers the System and Charges overvoltage protection supports unregulated the Battery adapters. The USB input current limit accuracy and start up sequence allow the bq2407x to meet USB-IF Supports up to 1.5-A Charge Current with Current inrush current specifications. Additionally, the input Monitoring Output (ISET) dynamic power management (V -DPM) prevents the IN Programmable Input Current Limit up to 1.5 A for charger from crashing incorrectly configured USB Wall Adapters sources. System Output Tracks Battery Voltage (bq24072) The bq2407x features dynamic power path Programmable Termination Current (bq24074) management (DPPM) that powers the system while Battery Disconnect Function with SYSOFF Input simultaneously and independently charging the battery. The DPPM circuit reduces the charge current (bq24075, bq24079) when the input current limit causes the system output Programmable Pre-Charge and Fast-Charge to fall to the DPPM threshold thus, supplying the Safety Timers system load at all times while monitoring the charge Reverse Current, Short-Circuit and Thermal current separately. This feature reduces the number Protection of charge and discharge cycles on the battery, allows for proper charge termination and enables the system NTC Thermistor Input to run with a defective or absent battery pack. Proprietary Start-up Sequence Limits Inrush Current (1) Device Information Status Indication Charging/Done, Power Good PART NUMBER PACKAGE BODY SIZE (NOM) bq24072 Typical Application Circuit bq24073 1kW bq24074 VSON (16) 3.00 mm 3.00 mm 1kW bq24075 bq24079 (1) For all available packages, see the orderable addendum at the end of the datasheet. IN SYSTEM IN OUT 10 13 11 1mF 4.7mF bq24075 5 8 EN2 VSS bq24079 BAT 2 3 System 15 SYSOFF ON/OFF 4.7mF Control PACK+ TEMP 1 TS PACK- 1.18kW 1.13kW 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. CE TMR 7 PGOOD EN1 ILM 9 ISET CHGbq24072,bq24073,bq24074,bq24075,bq24079 SLUS810KSEPTEMBER 2008REVISED MARCH 2015 www.ti.com Table of Contents 9.3 Feature Description................................................. 15 1 Features.................................................................. 1 9.4 Device Functional Modes........................................ 27 2 Applications........................................................... 1 10 Application and Implementation........................ 29 3 Description............................................................. 1 10.1 Application Information.......................................... 29 4 Revision History..................................................... 2 10.2 Typical Application................................................ 29 5 Description (continued)......................................... 4 10.3 System Examples................................................. 33 6 Device Comparison Table..................................... 4 11 Power Supply Recommendations..................... 35 7 Pin Configuration and Functions......................... 5 12 Layout................................................................... 35 8 Specifications......................................................... 6 12.1 Layout Guidelines................................................. 35 8.1 Absolute Maximum Ratings ..................................... 6 12.2 Layout Example.................................................... 36 8.2 ESD Ratings.............................................................. 6 12.3 Thermal Considerations........................................ 37 8.3 Recommended Operating Conditions....................... 7 13 Device and Documentation Support................. 38 8.4 Thermal Information.................................................. 7 13.1 Device Support...................................................... 38 8.5 Dissipation Ratings................................................... 7 13.2 Related Links........................................................ 38 8.6 Electrical Characteristics........................................... 8 13.3 Trademarks........................................................... 38 8.7 Typical Characteristics............................................ 10 13.4 Electrostatic Discharge Caution............................ 38 9 Detailed Description............................................ 13 13.5 Glossary................................................................ 38 9.1 Overview................................................................. 13 14 Mechanical, Packaging, and Orderable 9.2 Functional Block Diagram....................................... 14 Information........................................................... 38 4 Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision J (January 2015) to Revision K Page Deleted package type code from Device Comparison Table. See the POA at the end of the data sheet......................... 4 Changed I Battery fast charge current range MIN specification from150 m to100 m........................................... 9 CHG Changes from Revision I (January 2014) to Revision J 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 H (December 2013) to Revision I Page Changed resistor value from3 to8.9 in the Pin Functions table ISET Description paragraph.............................. 5 Changed R spec MAX value from3000 to8900 in the Recommended Operating Conditions table.......................... 7 ISET Changed resistor value from3 to5.9 in the Battery Charging section paragraph............................................... 21 Changes from Revision G (July 2011) to Revision H Page Changed I Battery fast charge current range MIN specification from300 m to150 m........................................... 9 CHG Changes from Revision F (September 2010) to Revision G Page Added ESD human body model specification to Abs Maximum Ratings table...................................................................... 6 2 Submit Documentation Feedback Copyright 20082015, Texas Instruments Incorporated Product Folder Links: bq24072 bq24073 bq24074 bq24075 bq24079