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BQ24027的基本参数
  • 制造厂商:TI
  • 产品类别:电源管理
  • 技术类目:电池管理 IC - 电池充电器 IC
  • 功能描述:无恒压充电、具有充电使能和交流存在指示的双输入 USB/交流适配器单节锂离子电池充电器
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BQ24027的产品详情:

The bqTINY-II series are highly-integrated, flexible Li-Ion linear charge and system power management devices for space-limited charger applications. In a single monolithic device, the bqTINY-II offers integrated USB-port and ac-adapter supply management with autonomous power-source selection, power-FET and current-sensor interfaces, high-accuracy current and voltage regulation, charge status, and charge termination.

The bqTINY-II automatically selects the USB-port or the ac-adapter as the power source for the system. In the USB configuration, the host can select from two preset charge rates of 100 mA or 500 mA. In the ac-adapter configuration, an external resistor sets the system or charge current.

The bqTINY-II charges the battery in three phases: conditioning, constant current, and constant voltage. Charge is terminated based on minimum current. An internal charge timer provides a backup safety for charge termination. The bqTINY-II automatically restarts the charge if the battery voltage falls below an internal threshold. The bqTINY-II automatically enters sleep mode when both supplies are removed.

Different versions of the bqTINY-II offer many additional features. These include a temperature-sensor input for detecting hot or cold battery packs, a power-good output (PG) indicating the presence of input power, a TTL-level charge-enable input (CE) used to disable or enable the charge process, and a TTL-level timer and taper-detect enable input (TTE) used to disable or enable the fast-charge timer and charge termination.

BQ24027的优势和特性:
  • Small 3 mm × 3 mm MLP Package
  • Charges and powers Systems from Either AC Adapter or USB With Autonomous power-Source Selection
  • Integrated USB Control With Selectable 100 mA and 500 mA Charge Rates
  • Ideal for Low-Dropout Charger Designs for Single-Cell Li-Ion or Li-pol Packs in Space Limited portable applications
  • Integrated power FET and Current Sensor for Up to 1-A Charge applications From AC Adapter
  • Precharge Conditioning With Safety Timer
  • power Good (AC Adapter Present) Status Output
  • Optional Battery Temperature Monitoring Before and During Charge
  • Automatic Sleep Mode for Low-power Consumption
  • APPLICATIONS
    • PDAs, MP3 Players
    • Digital Cameras
    • Internet appliances
    • Smartphones

bqTINY is a trademark of Texas Instruments.

BQ24027的参数(英文):
  • Number of series cells
  • 1
  • Charge current (Max) (A)
  • 1
  • Operating Vin (Max) (V)
  • 6.5
  • Cell chemistry
  • Li-Ion/Li-Polymer
  • Battery charge voltage (Min) (V)
  • 4.2
  • Battery charge voltage (Max) (V)
  • 4.2
  • Absolute Vin (safety rating) (Max) ((V))
  • 7
  • Control interface
  • Standalone (RC-Settable)
  • Features
  • BAT temp thermistor monitoring (hot/cold profile)
  • Operating Vin (Min) (V)
  • 4.5
  • Rating
  • Catalog
BQ24027具体的完整产品型号参数及价格(美元):

BQ24027的完整型号有:BQ24027DRCR,以下是这些产品的关键参数及官网采购报价:

BQ24027DRCR,工作温度:-40 to 85,封装:VSON (DRC)-10,包装数量MPQ:3000个,MSL 等级/回流焊峰值温度:Level-2-260C-1 YEAR,引脚镀层/焊球材料:NIPDAU,TI官网BQ24027DRCR的批量USD价格:2.444(1000+)

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BQ24027的评估套件:

TEMPSENSE-SW — 温度传感设计软件

The TempSense Designer software allows the user to easily design temperature sensing circuits for many of the Texas Instruments battery charger devices. A full listing of the supported devices is included under the "Support" menu in the program. The user can use the thermisters included in the (...)
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