Single-cell Li-Ion linear charger in HVSSOP-8
The Texas Instruments BQ24204DGN is a linear battery charger IC designed for single-cell Lithium Ion or Lithium Polymer packs. It delivers a constant charge current up to 500 mA and terminates at a regulated 4.2 V battery voltage. The part integrates over-temperature and short-circuit fault protection, and offers programmable charge current and timer via external components.
Charge current and supply limits
Maximum charge current is 500 mA. Input supply can range up to 13.5 V. The constant-current charging method (no pulse or multi-step profiles) means the charge current is fixed by the external resistor; the timer terminates the charge if the battery does not reach 4.2 V within the programmed window.
The BQ24204DGN is supplied in an 8-HVSSOP package (3.00 mm width, exposed pad) for surface-mount assembly.
