-
2022-09-24 23:32:00
BQ26500-Single-Cell Li-Ion Battery and Battery Fuel Gauge IC for Handheld Applications
describe
The bq26500, the first device in the bqJUNIOR family of advanced gas pressure gauges for handhald applications, is a highly accurate self-contained single-cell Li-Ion and Li-polymer battery capacity for portable applications where monitoring and reporting of space target devices are limited. Device monitoring across a small current sense voltage drop with battery series resistance determines charging and discharging activity of the battery. Battery temperature compensation, self-discharge, and discharge rate application charge counters provide usable capacity across a wide range of operating conditions. Battery capacity is automatically recalibrated, or learned, to empty during the entire course of the discharge cycle. Internal registers include capacity, battery temperature and voltage, state of charge and state and control registers. The bq26500 can operate directly from single-cell, Li-ion and Li-polymer batteries and communicate with systems through a simple one-wire bidirectional serial interface. 5 kbit/s HDQ bus interface reduces communication overhead to the external microcontroller.
Application Pocket PC Smart Phone
MP3 Player Digital Camera Internet Device Handheld Device