bq24450
SLUS929C – APRIL 2009 – REVISED FEBRUARY 2012 www.ti.com INTEGRATED CHARGE CONTROLLER FOR LEAD-ACID BATTERIES
Check for Samples: bq24450 FEATURES 1 Regulates Both Voltage and Current During
Charging
Precision Temperature-Compensated
Reference:
– Maximizes Battery Capacity Over
Temperature
– Ensures Safety While Charging Over
Temperature
Optimum Control to Maximize Battery Capacity
and Life Supports Different Configurations
Minimum External Components
Available in 16-Pin SOIC (DW) APPLICATIONS Emergency Lighting Systems
Security and Alarm Systems
Telecommunication Backup Power
Uninterruptible Power Supplies DESCRIPTION
The bq24450 contains all the necessary circuitry to optimally control the charging of valve-regulated lead-acid
batteries. The IC controls the charging current as well as the charging voltage to safely and efficiently charge the
battery, maximizing battery capacity and life. Depending on the application, the IC can be configured as a simple
constant-voltage float charge controller or a dual-voltage float-cum-boost charge controller.
The built-in precision voltage reference is especially temperature-compensated to track the characteristics of
lead-acid cells, and maintains optimum charging voltage over an extended temperature range without using any …
