资 源 简 介
The bq2400x series ICs are advanced Li-Ion linear charge management devices for highly integrated and space-limited applicaTIons. They combine high-accuracy current and voltage regulaTIon; FET pass-transistor and reverse-blocking Schottky; battery condiTIoning, temperature, or input-power monitoring; charge terminaTIon; charge-status indication; and charge timer in a small package.
The bq2400x measures battery temperature using an external thermistor. For safety reasons, the bq2400x inhibits charge until the battery temperature is within the user-defined thresholds. Alternatively, the user can monitor the input voltage to qualify charge. The bq2400x series then charge the battery in three phases: preconditioning, constant current, and constant voltage.
