BQ24261 (NRND)

3A, 30V, Host-Controlled Single-Input, Single Cell Switchmode Li-Ion Battery Charger with USB-OTG

3A, 30V, Host-Controlled Single-Input, Single Cell Switchmode Li-Ion Battery Charger with USB-OTG - BQ24261

Not Recommended for New Designs (NRND)

Replaced By BQ24261M– The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.

TI does not recommend using this part in a new design. This product continues to be in production to support existing customers.


The bq24260/bq24261/bq24261M/bq24262 is a highly integrated single-cell Li-Ion battery charger and system power path management device that supports operation from either a USB port or wall adapter supply. The power-path feature allows the bq24260/1/1M/2 to power the system from a high efficiency DC-DC converter while simultaneously and independently charging the battery. The power path also permits the battery to supplement the system current requirements when the adapter cannot. Many features are programmable using the I2C interface. To support USB OTG applications, the bq24260/1/1M/2 is configurable to boost the battery voltage to 5 V and supply up to 1 A at the input. The battery is charged with three phases: precharge, constant current, and constant voltage. Thermal regulation prevents the die temperature from exceeding 125°C. Additionally, a JEITA-compatible battery pack thermistor monitoring input (TS) is included to prevent the battery from charging outside of its safe temperature range.


  • Charge Time Optimizer (Enhanced CC/CV
    Transition) for Faster Charging
  • Integrated FETs for up to 3-A Charge Rate at 5%
    Accuracy and 93% Peak Efficiency
  • Boost Capability to Supply 5 V at 1 A at IN for
    USB OTG Supply
  • Integrated 17-mΩ Power-Path MOSFET and
    Optional BGATE Control to Maximize Battery
    Life and Instantly Start up From a Deeply
    Discharged Battery or No Battery
  • 30-V Input Rating With Overvoltage Protection
    Supports 5-V USB 2.0/3.0 and 12-V USB Power
    Delivery (bq24261/1M)
  • Small Solution Size In a 2.4-mm × 2.4-mm 36-Pin
    WCSP or 4-mm × 4-mm 24-Pin QFN Package
    • Total Charging Solution Can be 50 mm2 or
      Less With WCSP
  • Safe and Accurate Battery-Management
    Functions Programmed Using I2C Interface
    • Charge Voltage, Current, Termination
      Threshold, Input Current Limit, VIN_DPM
    • Voltage-Based, JEITA-Compatible NTC
      Monitoring Input
    • Thermal Regulation Protection for Input
      Current Control
    • Thermal Shutdown and Protection

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