- 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：系统侧 Impedance Track 电量监测计，固件版本为 v1.08
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The Texas Instruments bq27500/01 system-side Li-Ion battery fuel gauge is a microcontroller peripheral that provides fuel gauging for single-cell Li-Ion battery packs. The device requires little system microcontroller firmware development. The bq27500/01 resides on the system main board, and manages an embedded battery (non-removable) or a removable battery pack.
The bq27500/01 uses the patented Impedance Track™ algorithm for fuel gauging, and provides information such as remaining battery capacity (mAh), state-of-charge (%), run-time to empty (min.), battery voltage (mV), and temperature (°C).
Battery fuel gauging with the bq27500 requires only PACK+ (P+), PACK– (P–), and Thermistor (T) connections to a removable battery pack or embedded battery. The bq27501 works with identification resistors in battery packs to gauge batteries of different fundamental chemistries and/or significantly different rated capacities.
- Battery Fuel Gauge for 1-Series Li-Ion Applications
- Resides on System Main Board
- Works With Embedded or Removable Battery Packs
- Two Varieties
- bq27500: Uses PACK+, PACK–, and T Battery Terminals
- bq27501: Works With Battery ID Resistor in Battery Pack
- Microcontroller Peripheral Provides:
- Accurate Battery Fuel Gauging
- Internal Temperature Sensor for System Temperature Reporting
- Battery Low Interrupt Warning
- Battery Insertion Indicator
- Battery ID Detection
- 96 Bytes of Non-Volatile Scratch-Pad FLASH
- 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 (10 m or Less)
- I2C? Interface for Connection to System Microcontroller Port
- 12-Pin 2,5-mm × 4-mm SON Package
- APPLICATIONS
- Smartphones
- PDAs
- Digital Still and Video Cameras
- Handheld Terminals
- MP3 or Multimedia Players
Impedance Track is a trademark of Texas Instruments. I2C is a trademark of Philips Electronics.
- Cell chemistry
- Li-Ion/Li-Polymer
- Number of series cells
- Single Cell
- Communication interface
- I2C
- Battery capacity (Min) (mAh)
- 300
- Battery capacity (Max) (mAh)
- 8000
- Implementation
- System
- External capacity indication
- None
- Features
- Impedance Track? algorithm, Impedance Track? technology
- Operating temperature range (C)
- -40 to 85
- Cell balancing
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BQ27500-V100的完整型号有：BQ27500DRZR-V100、BQ27500DRZT-V100，以下是这些产品的关键参数及官网采购报价：
BQ27500DRZR-V100，工作温度：-40 to 85，封装：SON (DRZ)-12，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BQ27500DRZR-V100的批量USD价格：3.214（1000+）
BQ27500DRZT-V100，工作温度：-40 to 85，封装：SON (DRZ)-12，包装数量MPQ：250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BQ27500DRZT-V100的批量USD价格：3.749（1000+）
BQ27500DRZR-V100，工作温度：-40 to 85，封装：SON (DRZ)-12，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BQ27500DRZR-V100的批量USD价格：3.214（1000+）
BQ27500DRZT-V100，工作温度：-40 to 85，封装：SON (DRZ)-12，包装数量MPQ：250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BQ27500DRZT-V100的批量USD价格：3.749（1000+）
