BQ24250C 2A Single Input I2C/Standalone Switch-Mode Li-Ion Battery Charger |

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2A Single Input I2C/Standalone Switch-Mode Li-Ion Battery Charger



The bq24250C is a highly integrated single-cell Li-Ion battery charger and system power-path management device targeted for space-limited, portable applications with high capacity batteries. The single cell charger has a single input that operates from either a USB port or AC wall adapter for a versatile solution.


  • High-efficiency Switch-mode Charger with Separate Power Path
  • Start up System from Deeply Discharged or Missing Battery
  • USB Charging Compliant
    • Selectable Input Current Limit of 100 mA, 500 mA, 900 mA,\
      1.5 A, and 2 A
  • In Host Mode (After I2C Communication Starts and Before
    Watchdog Timer Times Out)
    • Programmable Battery Charge Voltage, VBATREG
    • Programmable Charge Current (ICHG)
    • Programmable Input Current Limit (ILIM)
    • Programmable Input Voltage Based Dynamic Power
      Management threshold, (VIN_DPM)
    • Programmable Input Overvoltage Protection Threshold
    • Programmable Safety Timer
  • Resistor Programmable Defaults for:
    • ICHG up to 2 A with Current Monitoring Output
    • ILIM up to 2 A with Current Monitoring Output (ILIM)
    • VIN_DPM (VDPM)
  • Watchdog Timer Disable Bit
  • Integrated 4.9 V, 50 mA LDO
  • Complete System Level Protection
    • Input UVLO, Input Over-voltage Protection (OVP),
      Battery OVP, Sleep Mode, VIN_DPM
    • Input Current Limit
    • Charge Current Limit
    • Thermal Regulation
    • Thermal Shutdown
    • Voltage Based NTC Monitoring Input
    • Safety Timer
  • 20 V Maximum Input Voltage Rating
  • 10.5 V Maximum Operating Input Voltage
  • Low RDS(on) Integrated Power FETs for up to 2 A
    Charging Rate
  • Open Drain Status Outputs
  • Synchronous Fixed-frequency PWM Controller Operating at
    3MHz for Small Inductor Support
  • Robust Battery Detection Algorithm
  • Charge Time Optimizer for improved charge times at any given
    charge current
  • 2.4 × 2.0 mm 30-ball WCSP Packages


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Part number Order Number of series cells Function Cell chemistry Charge current (Max) (A) Operating Vin (Min) (V) Operating Vin (Max) (V) Absolute Vin (safety rating) (Max) ((V)) Battery charge voltage (Min) (V) Battery charge voltage (Max) (V) Features Control interface Control topology Rating Operating temperature range (C) Package Group Package size: mm2:W x L (PKG)
BQ24250C Order now 1     Charger     Li-Ion/Li-Polymer     2     4.35     10.5     20     3.5     4.44     Integrated FET
Integrated LDO
JEITA BAT Temp Monitoring (Thermistor Pin)
Power Path
Temp Monitoring (Thermistor Pin)
Thermal Regulation    
Standalone (RC-Settable)    
Switch-Mode Buck     Catalog     -40 to 85     DSBGA | 30     30DSBGA: 6 mm2: 2.59 x 2.2 (DSBGA | 30)