BQ2419x Single-Cell Battery Chargers



Texas Instruments' I²C controlled, 4.5 A single cell USB / adaptor charger


Texas Instruments BQ2419x Single-Cell Battery Chargers Texas Instruments' first I²C, fully-integrated, 4.5 A charger on the market provides both host control and autonomous charging when the host is not available. The bq24190, bq24192, bq24192I, and bq24193 are highly-integrated switch-mode battery charge management and system power path management devices for single cell Li-Ion and Li-polymer batteries in a wide range of tablet and other portable devices. Their low impedance power path optimizes switch-mode operation efficiency, reduce battery charging time, and extend battery life during discharging phase. The I²C serial interface with charging and system settings makes the devices a truly flexible solution.

Features Applications
  • High efficiency, 4.5 A switch-mode charger
  • 1.5 MHz switching frequency for low profile inductor
  • Charge status outputs for LED or host processor
  • Low battery leakage current and support shipping mode
  • 4 mm × 4 mm QFN-24 package
  • Tablet PC and eReader chargers
  • Smartphone chargers
  • Consumer portable applications
  • Industrial portable applications

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Digi-Key
Part Number
Texas Instruments
Part Number
Reel Size Description  
296-35106-2-ND BQ24190RGET 250 IC USB/ADAPTOR CHARGR I2C 24VQFN BQ24190 Datasheet
296-35045-2-ND BQ24190RGER 3000 IC CHRG MGMT LI-ION/POL 24VQFN
296-35108-2-ND BQ24192RGET 250 IC USB/ADAPTOR CHARGR I2C 24VQFN BQ24192 Datasheet
296-35054-2-ND BQ24192RGER 3000 IC BATT CHARGE MGMT 24VQFN
296-35107-2-ND BQ24192IRGET 250 IC USB/ADAPTOR CHARGR I2C 24VQFN BQ24192 Datasheet
296-35053-2-ND BQ24192IRGER 3000 IC BATT CHARGE MGMT 24QFN
296-35046-2-ND BQ24193RGER 250 IC CHRG MGMT LI-ION/POL 24VQFN BQ24193 Datasheet
296-35109-2-ND BQ24193RGET 3000 IC USB/ADAPTOR CHARGR I2C 24VQFN
296-35056-2-ND BQ24196RGET 250 IC BATT CHARGE MGMT 24VQFN BQ24196 Datasheet