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BQ25170 正在供货 适用于单节锂离子和磷酸铁锂电池的 800mA 线性电池充电器 Supports multiple resistor programmable battery voltage with lower IQ

产品详情

Number of series cells 1 Charge current (max) (A) 1.2 Vin (max) (V) 10 Cell chemistry Li-Ion/Li-Polymer Battery charge voltage (min) (V) 4.1 Battery charge voltage (max) (V) 4.2 Absolute max Vin (max) (V) 13.5 Control topology Linear Control interface Standalone (RC-Settable) Features BAT temp thermistor monitoring (hot/cold profile) Vin (min) (V) 4.5 Rating Catalog Operating temperature range (°C) -20 to 70
Number of series cells 1 Charge current (max) (A) 1.2 Vin (max) (V) 10 Cell chemistry Li-Ion/Li-Polymer Battery charge voltage (min) (V) 4.1 Battery charge voltage (max) (V) 4.2 Absolute max Vin (max) (V) 13.5 Control topology Linear Control interface Standalone (RC-Settable) Features BAT temp thermistor monitoring (hot/cold profile) Vin (min) (V) 4.5 Rating Catalog Operating temperature range (°C) -20 to 70
HTSSOP (PWP) 20 41.6 mm² 6.5 x 6.4
  • Highly Integrated Solution With FET Pass Transistor and Reverse-Blocking Schottky and Thermal Protection
  • 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
  • Integrated Voltage and Current Regulation With Programmable Charge Current
  • High-Accuracy Voltage Regulation (±1%)
  • Ideal for Low-Dropout Linear Charger Designs for Single-Cell Li-Ion Packs With Coke or Graphite Anodes
  • Up to 1.2-A Continuous Charge Current
  • Safety-Charge Timer During Preconditioning and Fast Charge
  • Integrated Cell Conditioning for Reviving Deeply Discharged Cells and Minimizing Heat Dissipation During Initial Stage of Charge
  • Optional Temperature or Input-Power Monitoring Before and During Charge
  • Various Charge-Status Output Options for Driving Single, Double, or Bicolor LEDs or Host-Processor Interface
  • Charge Termination by Minimum Current and Time
  • Low-Power Sleep Mode
  • Packaging: 5 mm × 5 mm MLP (bq24007)or 20-Lead TSSOP PowerPAD™
  • APPLICATIONS
    • PDAs
    • Internet Appliances
    • MP3 Players
    • Digital Cameras

PowerPAD is a trademark of Texas Instruments.

  • Highly Integrated Solution With FET Pass Transistor and Reverse-Blocking Schottky and Thermal Protection
  • 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
  • Integrated Voltage and Current Regulation With Programmable Charge Current
  • High-Accuracy Voltage Regulation (±1%)
  • Ideal for Low-Dropout Linear Charger Designs for Single-Cell Li-Ion Packs With Coke or Graphite Anodes
  • Up to 1.2-A Continuous Charge Current
  • Safety-Charge Timer During Preconditioning and Fast Charge
  • Integrated Cell Conditioning for Reviving Deeply Discharged Cells and Minimizing Heat Dissipation During Initial Stage of Charge
  • Optional Temperature or Input-Power Monitoring Before and During Charge
  • Various Charge-Status Output Options for Driving Single, Double, or Bicolor LEDs or Host-Processor Interface
  • Charge Termination by Minimum Current and Time
  • Low-Power Sleep Mode
  • Packaging: 5 mm × 5 mm MLP (bq24007)or 20-Lead TSSOP PowerPAD™
  • APPLICATIONS
    • PDAs
    • Internet Appliances
    • MP3 Players
    • Digital Cameras

PowerPAD is a trademark of Texas Instruments.

The bq2400x series ICs are advanced Li-Ion linear charge management devices for highly integrated and space-limited applications. They combine high-accuracy current and voltage regulation; FET pass-transistor 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 appliances.

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 to condition the battery. A preconditioning timer provides additional safety. Following pre-conditioning, the bq2400x applies a constant-charge current to the battery. An external sense-resistor sets the magnitude of the current. The constant-current phase is maintained until the battery reaches the charge-regulation voltage. The bq2400x then transitions to the constant voltage phase. The user can configure the device for cells with either coke or graphite anodes. The accuracy of the voltage regulation is better than ±1% over the operating junction temperature and supply voltage range.

Charge is terminated by maximum time or minimum taper current detection

The bq2400x automatically restarts the charge if the battery voltage falls below an internal recharge threshold.

The bq2400x series ICs are advanced Li-Ion linear charge management devices for highly integrated and space-limited applications. They combine high-accuracy current and voltage regulation; FET pass-transistor 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 appliances.

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 to condition the battery. A preconditioning timer provides additional safety. Following pre-conditioning, the bq2400x applies a constant-charge current to the battery. An external sense-resistor sets the magnitude of the current. The constant-current phase is maintained until the battery reaches the charge-regulation voltage. The bq2400x then transitions to the constant voltage phase. The user can configure the device for cells with either coke or graphite anodes. The accuracy of the voltage regulation is better than ±1% over the operating junction temperature and supply voltage range.

Charge is terminated by maximum time or minimum taper current detection

The bq2400x automatically restarts the charge if the battery voltage falls below an internal recharge threshold.

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类型 标题 下载最新的英语版本 日期
* 数据表 Single-Cell Li-Ion Charge Mgmt IC w/Timer-Enable for PDAs & Appliances 数据表 (Rev. D) 2004年 11月 11日
应用手册 PowerPAD™ Thermally Enhanced Package (Rev. H) 2018年 7月 6日

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包含信息:
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息:
  • 制造厂地点
  • 封装厂地点

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