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BQ24003

Part Number	BQ24003
Manufacturer	Texas Instruments
Description	Single-Cell Li-Ion Charge Management
Published	May 27, 2020
Detailed Description	www.ti.com bq24001 bq24002 bq24003 SLUS462E − SEPTEMBER 2000 − REVISED NOVEMBER 2004 SINGLEĆCELL LiĆION CHARGE MANAGEM...
Datasheet	BQ24003 PDF File

Overview

www.
ti.
com bq24001 bq24002 bq24003 SLUS462E − SEPTEMBER 2000 − REVISED NOVEMBER 2004 SINGLEĆCELL LiĆION CHARGE MANAGEMENT IC FOR PDAs AND INTERNET APPLIANCES FEATURES D Highly Integrated Solution With FET Pass Transistor and Reverse-Blocking Schottky and Thermal Protection D Integrated Voltage and Current Regulation With Programmable Charge Current D High-Accuracy Voltage Regulation (±1%) D Ideal for Low-Dropout Linear Charger Designs for Single-Cell Li-Ion Packs With Coke or Graphite Anodes D Up to 1.
2-A Continuous Charge Current D Safety-Charge Timer During Preconditioning and Fast Charge D Integrated Cell Conditioning for Reviving Deeply Discharged Cells and Minimizing Heat Dissipation During Initial Stage of Charge D Optional Temperature or Input-Power Monitoring Before and During Charge D Various Charge-Status Output Options for Driving Single, Double, or Bicolor LEDs or Host-Processor Interface D Charge Termination by Minimum Current and Time D Low-Power Sleep Mode D Packaging: 5 mm × 5 mm MLP or 20-Lead TSSOP PowerPAD APPLICATIONS D PDAs D Internet Appliances D MP3 Players D Digital Cameras DESCRIPTION The bq2400x series ICs are advanced Li-Ion linear charge management devices for highly integrated and space-limited applications.
They combine highaccuracy current and voltage regulation; FET passtransistor and reverse-blocking Schottky; battery conditioning, temperature, or input-power monitoring; charge termination; charge-status indication; and charge timer in a small package.
The bq2400x measures battery temperature using an external thermistor.
For safety reasons, the bq2400x inhibits charge until the battery temperature is within the user-defined thresholds.
Alternatively, the user can monitor the input voltage to qualify charge.
The bq2400x series then charge the battery in three phases: preconditioning, constant current, and constant voltage.
If the battery voltage is below the internal low-voltage threshold, the bq2400x uses low-current precharge ...

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