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BQ24085DRCT Datasheet(PDF) 1 Page - Texas Instruments |
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BQ24085DRCT Datasheet(HTML) 1 Page - Texas Instruments |
1 / 35 page 1 FEATURES DESCRIPTION APPLICATIONS IN STAT1 CE 6 STAT2 V SS ISET PG TMR BAT bq24085 10 9 8 7 5 1 2 3 4 OUT IN STAT 1 CE OUT Li-IonorLi-Pol BatteryPack + Pack- Pack+ STAT 2 Vss ISET PG RED GREEN RSET TMR RTMR 1 2 3 4 5 6 7 8 9 10 BAT ChargeEnable andPowerGood InputPower R2 1.5kW R1 1.5kW bq24085 1 F m C2 49.9kW 1.13kW C3 4.7 F m bq24085, bq24086 bq24087, bq24088 www.ti.com............................................................................................................................................. SLUS784D – DECEMBER 2007 – REVISED AUGUST 2009 750 mA SINGLE-CHIP Li-Ion/Li-Pol CHARGE MANAGEMENT IC WITH THERMAL REGULATION • Ideal for Low-Dropout Designs for Single-Cell Li-Ion or Li-Pol Packs in Space Limited The bq24085/6/7/8 series are highly integrated Li-Ion Applications and Li-Pol linear chargers, targeted at space-limited portable applications. The bq24085/6/7/8 series offers • Integrated Power FET and Current Sensor for a variety of safety features and functional options, up to 750-mA Charge Applications while still implementing a complete charging system • Reverse Leakage Protection Prevents Battery in a small package. The battery is charged in three Drainage phases: conditioning, constant or thermally regulated • ±0.5% Voltage Regulation Accuracy current, and constant voltage. Charge is terminated based on minimum current. An internal • Thermal Regulation Maximizes Charge Rate programmable charge timer provides a backup safety • Charge Termination by Minimum Current and feature for charge termination and is dynamically Time adjusted during the thermal regulation phase. The • Precharge Conditioning With Safety Timer bq24085/6/7/8 automatically restarts the charge if the battery voltage falls below an internal threshold; sleep • Status Outputs for LED or System Interface mode is set when the external input supply is Indicate Charge, Fault, and Power Good removed. Multiple versions of this device family Outputs enable easy design of the bq24085/6/7/8 in cradle • Short-Circuit and Thermal Protection chargers or in the end equipment, while using low cost or high-end AC adapters. • Automatic Sleep Mode for Low Power Consumption Pin Out • Small 3×3 mm MLP Package (Top View) • Selectable Battery Insertion and Battery Absent Detection • Input Overvoltage Protection – 6.5 V and 10.5 V Options • PDA, MP3 Players, Digital Cameras • Internet Appliances and Handheld Devices TYPICAL APPLICATION CIRCUIT 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 © 2007–2009, 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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