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JEITA compatible stand-alone synchronous switch-mode Li-ion or Li-polymer battery charger


Package | PIN: VQFN (RGE) | 24
Temp: I (-40 to 85)
Carrier: Cut Tape
Qty Price
1-9 $5.32
10-24 $4.79
25-99 $4.47
100-249 $4.01
250-499 $3.74
500-749 $3.26
750-999 $2.82
1000+ $2.76


  • Battery Thermistor Sense for JEITA Guideline
    Compatible Charger
  • 600-kHz NMOS-NMOS Synchronous Buck
  • Stand-Alone Charger Support for Li-Ion or Li-
  • 5-V–28-V VCC Input Operating Range and
    Supports 1 to 6 Battery Cells
  • Up to 10-A Charge Current and Adapter Current
  • High-Accuracy Voltage and Current Regulation
    • ±0.5% Charge Voltage Accuracy
    • ±3% Charge Current Accuracy
    • ±3% Adapter Current Accuracy
  • Integration
    • Automatic System Power Selection From
      Adapter or Battery
    • Internal Loop Compensation
    • Internal Soft-Start
    • Dynamic Power Management
  • Safety Protection
    • Input Overvoltage Protection
    • Battery Detection
    • Reverse Protection Input FET
    • Programmable Safety Timer
    • Charge Overcurrent Protection
    • Battery Short Protection
    • Battery Overvoltage Protection
    • Thermal Shutdown
  • Status Outputs
    • Adapter Present
    • Charger Operation Status
  • Charge Enable Pin
  • 6-V Gate Drive for Synchronous Buck Converter
  • 30-ns Driver Dead-Time and 99.5% Maximum
    Effective Duty Cycle
  • 24-Pin, 4-mm × 4-mm QFN Package
  • Energy Star Low Quiescent Current Iq
    • < 15-µA Off-State Battery Discharge Current
    • < 1.5-mA Off-State Input Quiescent Current

Texas Instruments  BQ24616RGET

The bq2461x device is a highly integrated, Japan Electronic Information Technology Association (JEITA) guideline-compatible, Li-ion or Li-polymer switched-mode battery charge controller. The device offers a constant-frequency synchronous switching PWM controller with high-accuracy charge current and voltage regulation, charge preconditioning, termination, adapter current regulation, and charge status monitoring

The bq2461x charges the battery in three phases: preconditioning, constant current, and constant voltage. Charge is terminated when the current reaches a minimum user-selectable level. A programmable charge timer provides a safety backup. The bq2461x automatically restarts the charge cycle if the battery voltage falls below an internal threshold, and enters a low quiescent current sleep mode when the input voltage falls below the battery voltage.