- 制造厂商：TI
- 产品类别：电源管理
- 技术类目：电池管理 IC - 电池电量监测
- 功能描述：适用于一节和两节锂离子电池应用的完整电池电量监测计
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The bq26500, the first in the bqJUNIOR™ family of advanced gas gauge device for handheld applications, is a highly accurate standalone single-cell Li-Ion and Li-Pol battery capacity monitoring and reporting device targeted at space limited portable applications. The device monitors a voltage drop across a small current sense resistor connected in series with the battery to determine charge and discharge activity of the battery. Compensations for battery temperature, self-discharge, and rate of discharge are applied to the charge counter to provide available capacity across a wide range of operating conditions. Battery capacity is automatically recalibrated, or learned, in the course of a discharge cycle from full to empty. Internal registers include available capacity, cell temperature and voltage, state-of-charge, and status and control registers.
The bq26500 can operate directly from single-cell Li-Ion and Li-Pol batteries and communicates to the system over a simple one-wire bi-directional serial interface. The 5-kbits/s HDQ bus interface reduces communication overhead in the external microcontroller.
- Reports Accurate State-of-Charge in Li-Ion and Li-Pol Cells, No System Processor Calculations Needed
- Reports Cell Temperature and Voltage
- High-Accuracy Coulometric Charge and Discharge Current Integration with Automatic Offset Cancellation
- Requires No Offset Calibration
- Programmable Input/Output Port
- Internal Time-Base Eliminates External Crystal Oscillator
- Four Automatic Low-Power Operating Modes
- Active: < 100 μA
- Sleep: < 2.5 μA
- Ship: < 1.7 μA
- Hibernate: < 1.5 μA
- Small 8-Pin TSSOP Package
- APPLICATIONS
- PDAs
- Smart Phones
- MP3 Players
- Digital Cameras
- Internet Appliances
- Handheld Devices
- Cell chemistry
- Lead Acid, Li-Ion/Li-Polymer, NiCd, NiMH
- Number of series cells
- Single Cell
- Communication interface
- HDQ
- Battery capacity (Min) (mAh)
- 300
- Battery capacity (Max) (mAh)
- 6000
- Implementation
- Pack, System
- External capacity indication
- None
- Features
- Coulomb Counter
- Operating temperature range (C)
- 0 to 70
- Cell balancing
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BQ26500的完整型号有：BQ26500PW、BQ26500PWR，以下是这些产品的关键参数及官网采购报价：
BQ26500PW，工作温度：0 to 70，封装：TSSOP (PW)-8，包装数量MPQ：100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BQ26500PW的批量USD价格：7.503（1000+）
BQ26500PWR，工作温度：0 to 70，封装：TSSOP (PW)-8，包装数量MPQ：2000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BQ26500PWR的批量USD价格：6.431（1000+）
BQ26500PW，工作温度：0 to 70，封装：TSSOP (PW)-8，包装数量MPQ：100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BQ26500PW的批量USD价格：7.503（1000+）
BQ26500PWR，工作温度：0 to 70，封装：TSSOP (PW)-8，包装数量MPQ：2000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BQ26500PWR的批量USD价格：6.431（1000+）
