Charger IC for sealed lead-acid backup
The Texas Instruments BQ2031SN-A5TR is a single-cell lead-acid battery charger IC in a 16-SOIC package, designed for constant-current and pulsed charging up to 5 mA. It integrates fault protection for over-temperature and over-voltage conditions, and offers programmable charge current, charge timer, and charge voltage through external components. With a maximum supply voltage of 5.5 V and an operating temperature range of -20°C to 70°C, it suits board-level charging circuits in portable or backup-power equipment where the ambient stays within commercial-industrial limits.