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I2C 1cell 3A buck battery charger with power path and PSEL

ACTIVE custom-reels CUSTOM Custom reel may be available


Qty Price (USD)
1-99 2.981
100-249 2.43
250-999 1.91
1,000+ 1.62

Additional package qty | Carrier options info-circle

Package qty | Carrier 250 | SMALL T&R
Qty | Price (USD) 1ku | 1.944 1-99 3.577 100-249 2.916 250-999 2.292 1,000+ 1.944

Quality information

RoHS Yes
Lead finish / Ball material NIPDAU
MSL rating / Peak reflow Level-2-260C-1 YEAR
Quality, reliability
& packaging information info-circle

Information included:

  • RoHS
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
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Export classification

*For reference only

  • US ECCN: EAR99

Packaging information

Package | Pins WQFN (RTW) | 24
Package qty | Carrier: 3,000 | LARGE T&R
Operating temperature range (°C) -40 to 85
View TI packaging information

Features for the BQ25896

  • High Efficiency 3-A, 1.5-MHz Switch Mode Buck Charge
    • 92.5% Charge Efficiency at2 A and 90.5% Charge Efficiency at3 A Charge Current
    • Optimize for High Voltage Input (9 V/ 12 V)
    • Low Power PFM mode for Light LoadOperations
  • USB On-the-Go (OTG) with Adjustable Output from 4.5 V to 5.5 V
    • Selectable500-KHz / 1.5-MHz Boost Converter with up-to 2 A Output
    • 93% BoostEfficiency at 5 V at 1 A Output
    • Accurate Hiccup ModeOvercurent Protection
    • Support down-to 2.5VBattery
    • Support PWM only or PFM/PWM control for Light LoadEfficiency
  • Single Input to Support USB Input and Adjustable High Voltage Adapters
    • Support 3.9-V to 14-V InputVoltage Range
    • Input Current Limit (100 mA to 3.25 A with 50-mA resolution) toSupport USB2.0, USB3.0 standard and High Voltage Adapters
    • Maximum PowerTracking by Input Voltage Limit up-to 14V for Wide Range of Adapters
  • Input Current Optimizer (ICO) to Maximize Input Power without Overloading Adapters
  • Resistance Compensation (IRCOMP) from Charger Output to Cell Terminal
  • Highest Battery Discharge Efficiency with 11-mΩ Battery Discharge MOSFET up to 9 A
  • Integrated ADC for System Monitor
    (Voltage, Temperature, Charge Current)
  • Narrow VDC (NVDC) Power Path Management
    • Instant-on Works with No Battery or Deeply DischargedBattery
    • Ideal Diode Operation in Battery SupplementMode
  • BATFET Control to Support Ship Mode, Wake Up, and Full System Reset
  • Flexible Autonomous and I2C Mode for Optimal System Performance
  • High Integration includes all MOSFETs, Current Sensing and Loop Compensation
  • 12-µA Low Battery Leakage Current to Support Ship Mode
  • High Accuracy
    • ±0.5% Charge VoltageRegulation
    • ±5% Charge Current Regulation
    • ±7.5% InputCurrentRegulation
  • Safety
    • BatteryTemperature Sensing for Charge and Boost Mode
    • Thermal Regulation and Thermal Shutdown

Description for the BQ25896

The bq25896 is a highly-integrated 3-A switch-mode battery chargemanagement and system power path management device for single cell Li-Ion and Li-polymer battery.The devices support high input voltage fast charging. The low impedance power path optimizesswitch-mode operation efficiency, reduces battery charging time and extends battery life duringdischarging phase. The I2C Serial interface with charging and systemsettings makes the device a truly flexible solution.

The bq25896 is a highly-integrated 3-A switch-mode battery chargemanagement and system power path management device for single cell Li-Ion and Li-polymer battery.It features fast charging with high input voltage support for a wide range of smartphone, tabletand portable devices. Its low impedance power path optimizes switch-mode operation efficiency,reduces battery charging time and extends battery life during discharging phase. It also integratesInput Current Optimizer (ICO) and Resistance Compensation (IRCOMP) to deliver maximum chargingpower to battery. The solution is highly integrated with input reverse-blocking FET (RBFET, Q1),high-side switching FET (HSFET, Q2), low-side switching FET (LSFET, Q3), and battery FET (BATFET,Q4) between system and battery. It also integrates the bootstrap diode for the high-side gate driveand battery monitor for simplified system design. The I2C serialinterface with charging and system settings makes the device a truly flexible solution.

The device supports a wide range of input sources and takes the resultfrom detection circuit in the system, such as USB PHY device. The input current and voltageregulation selection is compactible with USB 2.0 and USB 3.0 power spec. In addition, the InputCurrent Optimizer (ICO) supports the detection of maximum power point detection of the input sourcewithout overload. The device also meets USB On-the-Go (OTG) operation power rating specification bysupplying 5 V (Adjustable 4.5V-5.5V) on VBUS with current limit up to 2 A.

The power path management regulates the system slightly above battery voltage but doesnot drop below 3.5V minimum system voltage (programmable). With this feature, the system maintainsoperation even when the battery is completely depleted or removed. When the input current limit orvoltage limit is reached, the power path management automatically reduces the charge current tozero. As the system load continues to increase, the power path discharges the battery until thesystem power requirement is met. This Supplemental Mode operation preventsoverloading the input source.

The device initiates and completes a charging cycle without software control. Itautomatically detects the battery voltage and charges the battery in three phases:pre-conditioning, constant current and constant voltage. At the end of the charging cycle, thecharger automatically terminates when the charge current is below a preset limit in the constantvoltage phase. When the full battery falls below the recharge threshold, the charger willautomatically start another charging cycle.

The charger provides various safety features for battery charging and system operations,including battery temperature negative thermistor monitoring, charging safety timer andovervoltage/overcurrent protections. The thermal regulation reduces charge current when thejunction temperature exceeds 120°C (programmable). The STAT output reports the charging status andany fault conditions. ThePG output indicates if a good power source is present. The INT immediately notifies host when fault occurs.

The device also provides a 7-bit analog-to-digital converter (ADC) for monitoring chargecurrent and input/battery/system (VBUS, BAT, SYS, TS) voltages. The QON pin provides BATFETenable/reset control to exit low power ship mode or full system reset function.

The device family is available in 24-pin, 4 x 4 mm2 x 0.75 mmthin WQFN package.


Qty Price (USD)
1-99 2.981
100-249 2.43
250-999 1.91
1,000+ 1.62

Additional package qty | Carrier options info-circle

Package qty | Carrier 250 | SMALL T&R
Qty | Price (USD) 1ku | 1.944 1-99 3.577 100-249 2.916 250-999 2.292 1,000+ 1.944

Carrier options

You can choose different carrier options based on the quantity of parts, including full reel, custom reel, cut tape, tube or tray.

custom reel is a continuous length of cut tape from one reel to maintain lot- and date-code traceability, built to the exact quantity requested. Following industry standards, a brass shim connects an 18-inch leader and trailer on both sides of the cut tape for direct feeding into automated assembly machines. TI includes a reeling fee for custom reel orders.

Cut tape is a length of tape cut from a reel. TI may fulfill orders using multiple strips of cut tapes or boxes to satisfy the quantity requested.

TI often ships  tube or tray  devices inside a box or in the tube or tray, depending on inventory availability. We pack all tapes, tubes or sample boxes according to internal electrostatic discharge and moisture-sensitivity-level protection requirements.

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Lot and date code selection may be available

Add a quantity to your cart and begin the checkout process to view the options available to select lot or date codes from existing inventory.

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