Multi-chemistry charger for 2-4 cell battery packs
The Texas Instruments BQ24753RHDR is a multi-chemistry battery charger controller designed for 2 to 4 series-cell battery packs. It delivers a programmable constant-current charge up to 10 A, with a maximum battery pack voltage of 18.048 V. The device integrates over-current and over-voltage fault protection, reducing the external component count for a dedicated charger section on a notebook or portable equipment main board.
10 A charge current and thermal budget
The 10 A programmable charge ceiling sets this part in the high-current charger tier. At full current the power dissipation in the external pass FETs and sense resistor dominates the thermal design; the 28-VQFN (5x5) exposed pad needs a solid thermal via pattern to the ground plane to keep the controller junction below the 125°C TJ maximum.
Sourcing is through the independent distribution channel.