· BQ26231PWR

· 在嵌入式便携应用领域中用于电池容量监测的具有成本优势的库仑计数器

· Multifunction High-Accuracy Coulometric Charge and Discharge Counter

· Ideal for Portable Applications With Nonremovable Rechargeable Battery Pack

· Resolves Signals Less Than 12.5 uV

· Internal Offset Calibration Improves Accuracy

· 128 Bytes of General-Purpose RAM

· Internal Temperature Sensor Eliminates the Need for an External Thermistor

· High-Accuracy Internal Timebase Eliminates External Crystal Oscillator

· Low Power Consumption:

o Operating: < 80 uA

o Sleep: < 10 uA

· Single-Wire HDQ Serial Interface

· Packaging: 8-Lead TSSOP

BQ26231PWR BQ26231PWR BQ26231PWR

The bq26231 is a low-cost charge/discharge counter peripheral in an 8-pin TSSOP. It works with an intelligent host controller, providing state-of-charge information for rechargeable Li-Ion, Li-Pol, or NiMH batteries. The bq26231 measures the voltage drop across a low-value series sense resistor between the negative terminal of the battery and the battery pack ground contact. By using the accumulated counts in the charge, discharge, and self-discharge registers, an intelligent host controller can determine battery state-of-charge information. To improve accuracy, an offset count register is available. The system host controller is responsible for the register maintenance by resetting the charge in/out and self-discharge registers as needed.

The bq26231 features 13 bytes of registers, which contain the capacity monitoring and status information. The RBI input operates from an external power storage source such as a capacitor or a series cell in the battery pack, providing register nonvolatility for periods when the battery is shorted to ground or when the battery charge state is not sufficient to operate the bq26231. During this mode, the register backup current is less than 100 nA. Packaged in an 8-pin TSSOP, the bq26231 is small enough to fit in the crevice between two A-size cells or within the width of a prismatic cell.

 

一般信息 数据列表 BQ26231; 标准包装   2,000 包装   标准卷带  零件状态 有源 类别 集成电路（IC） 产品族 PMIC - 电池管理 系列 -   规格 功能 电池监控器 电池化学 多化学 电池数 - 故障保护 - 接口 HDQ 工作温度 -20°C ~ 70°C（TA） 安装类型 表面贴装型 封装/外壳 8-TSSOP（0.173"，4.40mm 宽） 供应商器件封装 8-TSSOP

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