封裝資訊
| 封裝 | 引腳 TSSOP (PW) | 8 |
| 作業溫度範圍 (°C) 0 to 70 |
| 包裝數量 | 運送包裝 100 | TUBE |
BQ26500 的特色
- 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
BQ26500 的說明
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.