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Stand-alone synchronous switch-mode Li-ion or Li-polymer battery charger with 5V–28V VCC input

Availability: 5,692


Package | PIN: VQFN (RGE) | 24
Temp: I (-40 to 85)
Carrier: Cut Tape
Qty Price
1-9 $4.63
10-24 $4.16
25-99 $3.89
100-249 $3.49
250-499 $3.25
500-749 $2.83
750-999 $2.45
1000+ $2.40


  • 600-kHz NMOS-NMOS Synchronous Buck
  • Stand-Alone Charger Support for Li-Ion or Li-
  • 5-V to 28-V VCC Input Operating Range and
    Supports 1- to 6-Battery Cells (bq24610)
  • 5-V to 24-V VCC Input Operating Range and
    Supports 1- to 5-Battery Cells (bq24617)
  • Up to 10-A Charge Current and Adapter Current
  • High-Accuracy Voltage and Current Regulation
    • &plusm;0.5% Charge Voltage Accuracy
    • &plusm;3% Charge Current Accuracy
    • &plusm;3% Adapter Current Accuracy
  • Integration
    • Automatic System Power Selection From
      Adapter or Battery
    • Internal Loop Compensation and Soft Start
    • Dynamic Power Management
  • Safety Protection
    • Input Overvoltage Protection
    • Battery Thermistor Sense Hot and Cold
      Charge Suspend
    • 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
  • Energy Star Low Quiescent Current Iq
    • < 15-µA Off-State Battery Discharge Current
    • < 1.5-mA Off-State Input Quiescent Current
    • Netbooks, Mobile Internet Devices, and Ultra-
      Mobile PCs
    • Personal Digital Assistants (PDAs)
    • Handheld Terminals
    • Industrial and Medical Equipment
    • Portable Equipment

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Texas Instruments  BQ24610RGER

The bq2461x is a highly integrated 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.