bq24008 Datasheet | Texas Instruments

.ti. bq24007 bq24008 SLUS479D - JANUARY 2001 - REVISED NOVEMBER 2004 SINGLEĆCELL LiĆION CHARGE MANAGEMENT IC WITH TIMERĆENABLE FOR PDAs AND INTERNET APPLIANCES Features D Highly Integrated Solution With FET Pass Transistor and Reverse-Blocking Schottky and Thermal Protection D Timer-Enable Function That Allows Host to Disable Charge Timer and Termination When Charge Current Is Shared With a Load or When Battery Is Absent 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 (bq24007)or 20-Lead TSSOP Power PAD 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 bine 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 bq24007 and bq24008 provide the timer-enable function, allowing the host to disable the charge timer when charge current is shared with a load or when the battery is absent. This feature is ideal for applications such as cellular phones, PDAs, and internet...