- 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：采用 Impedance Track 电量监测计技术的单节锂离子电池管理器
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The Texas Instruments’ bq27350 is a battery fuel gauge with secure authentication support for single cell Li-Ion/Li-Polymer battery packs. Designed for battery pack integration, the device requires little host microcontroller firmware support for implementation. The system host processor communicates with the bq27350 over an I2C interface to obtain remaining battery capacity, system run-time predictions, and other critical battery information.
The bq27350 uses the patented Impedance Track™ algorithm for its fuel gauging. The gauge provides information such as state-of-charge (%), run-time to empty (min.), charge time to full (min.), battery voltage (V), and pack temperature (°C).
The bq27350 also features both integrated and external support for secure battery pack authentication, using the SHA-1/HMAC authentication algorithm.
- Comprehensive Battery Fuel Gauge for Single Cell and 1-Series Li-Ion/Li-Polymer Applications
- Secure Battery Authentication Using SHA-1/HMAC Encryption
- Calculates and Reports
- Remaining Battery Capacity
- Battery Voltage and Temperature
- Charge and Discharge Current
- Four Time-to-Empty Predictions
- Battery Fuel Gauge Based on Patented Impedance Track Technology
- Models the Battery Discharge Curve for Accurate Time-to-Empty Predictions
- Automatically Adjusts for Battery Aging, Battery Self Discharge, and Temperature/Rate Inefficiencies
- Low Value Sense Resistor (10m or Less)
- 96-Bytes Non-Volatile Scratch Pad Data Memory
- I2C Communications Interface to the Host
- 20-Pin TSSOP Package
- APPLICATIONS
- POS Terminals
- Industrial Data Collection
- Smartphones
- PDAs
- Digital Cameras
- Handheld Terminals
- Cell chemistry
- Li-Ion/Li-Polymer
- Number of series cells
- Single Cell
- Communication interface
- HDQ, I2C
- Battery capacity (Min) (mAh)
- 100
- Battery capacity (Max) (mAh)
- 29000
- Implementation
- Pack
- External capacity indication
- None
- Features
- Impedance Track? algorithm
- Operating temperature range (C)
- -40 to 85
- Cell balancing
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BQ27350的完整型号有：BQ27350PW、BQ27350PWR，以下是这些产品的关键参数及官网采购报价：
BQ27350PW，工作温度：-40 to 85，封装：TSSOP (PW)-20，包装数量MPQ：70个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：Call TI，TI官网BQ27350PW的批量USD价格：3.991（1000+）
BQ27350PWR，工作温度：-40 to 85，封装：TSSOP (PW)-20，包装数量MPQ：2000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网BQ27350PWR的批量USD价格：3.326（1000+）
BQ27350PW，工作温度：-40 to 85，封装：TSSOP (PW)-20，包装数量MPQ：70个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：Call TI，TI官网BQ27350PW的批量USD价格：3.991（1000+）
BQ27350PWR，工作温度：-40 to 85，封装：TSSOP (PW)-20，包装数量MPQ：2000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网BQ27350PWR的批量USD价格：3.326（1000+）
