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BQ24091DGQT Datasheet(PDF) 1 Page - Texas Instruments |
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BQ24091DGQT Datasheet(HTML) 1 Page - Texas Instruments |
1 / 34 page 1 F m 1 F m 1kW 1.5kW 1.5kW 2kW Disconnect after Detection + Battery Pack VBUS GND D+ D- USB Port DC+ GND Adaptor VDD D- D+ GND TTDM Host System Load OR ISET/100/500mA 1 2 3 4 5 10 9 8 7 6 IN ISET VSS PRETERM PG NC ISET2 CHG TS OUT bq2409x + bq24090, bq24091 bq24092, bq24093 www.ti.com SLUS968B – JANUARY 2010 – REVISED JUNE 2010 1A, Single-Input, Single Cell Li-Ion Battery Charger Check for Samples: bq24090, bq24091, bq24092, bq24093 1 FEATURES APPLICATIONS • Smart Phones • CHARGING • PDAs – 1% Charge Voltage Accuracy • MP3 Players – 10% Charge Current Accuracy • Low-Power Handheld Devices – Pin Selectable USB 100mA and 500mA Maximum Input Current Limit DESCRIPTION – Programmable Termination and Precharge The bq2409x series of devices are highly integrated Threshold Li-ion linear chargers devices targeted at • PROTECTION space-limited portable applications. The devices – 6.6V Over-Voltage Protection operate from either a USB port or AC adapter. The high input voltage range with input overvoltage – Input Voltage Dynamic Power Management protection supports low-cost unregulated adapters. – 125°C Thermal Regulation; 150°C Thermal Shutdown Protection The bq2409x has a single power output that charges the battery. A system load can be placed in parallel – OUT Short-Circuit Protection and ISET with the battery as long as the average system load Short Detection does not keep the battery from charging fully during – Operation Over JEITA Range via Battery the 10 hour safety timer. NTC – ½ Fast-Charge-Current at Cold, The battery is charged in three phases: conditioning, 4.06V at Hot, bq24092/3 constant current and constant voltage. In all charge – Fixed 10 Hour Safety Timer phases, an internal control loop monitors the IC • SYSTEM junction temperature and reduces the charge current if an internal temperature threshold is exceeded. – Automatic Termination and Timer Disable Mode (TTDM) for Absent Battery Pack With Thermistor – Status Indication – Charging/Done – Available in Small 10-Pin MSOP Package 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Copyright © 2010, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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