Battery charger IC for 2-4 cell Li-Ion packs
The Texas Instruments BQ24742RHDT is a Li-Ion/Polymer battery charger controller supporting 2 to 4 series cells with a programmable constant-current charge up to 10 A. It integrates over-current, over-temperature, over-voltage, and short-circuit fault protection for safe charging in industrial and portable equipment.
10 A charge current and thermal design
The 10 A maximum charge current sets the power-stage requirements: the external MOSFETs, inductor, and sense resistor must be sized for continuous 10 A with headroom. Supply voltage is rated up to 24 V, covering common adapter rails for 2-4 cell packs. The constant-current charging mode is programmable via an external resistor.
The BQ24742RHDT carries an obsolete lifecycle status.
