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Texas Instruments BQ25896RTWR — Power Management (PMIC / Gate Driver)

BQ25896RTWR — TI MaxCharge Li-Ion Battery Charger IC, 1-Cell

MPNBQ25896RTWR
Active

Texas Instruments MaxCharge™ series, BQ25896RTWR, single-cell Li-ion/Li-polymer battery charger, 3A max charge current, I²C interface, 14V supply max, -40°C to 85°C, 24-WFQFN exposed pad package.

$4.5500Ref. price · indicative, final on quote
Texas Instruments BQ25896RTWR datasheet (PDF)
Packaging24-WFQFN Exposed Pad
RoHSROHS3 Compliant
SeriesMaxCharge™
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

BQ25896RTWR specifications
ParameterValue
SeriesMaxCharge™
MountingSurface Mount
Supply voltage14V
Charge current - max3A
InterfaceI²C
Operating temperature-40°C~85°C(TA)
PackageTape & Reel (TR); Cut Tape (CT)
Case24-WFQFN Exposed Pad
Number of cells1
Fault protectionOver Current, Over Temperature
Battery chemistryLithium Ion/Polymer

Product details

The BQ25896RTWR is a Texas Instruments MaxCharge™ single-cell Li-ion/Li-polymer battery charger that delivers up to 3A charge current from a supply rail rated to 14V max. The I²C interface lets the system host set charge current, termination threshold, and safety timers without external resistor dividers — useful when the same PCB must support different cell capacities.

Charge current, input voltage, and thermal budget

The 3A max charge current is the thermal design target for the 24-WQFN (4x4 mm) package with exposed pad. Input voltage tolerance to 14V covers common USB-C PD profiles and legacy 12V wall adapters, but the actual charge voltage for a single Li-ion cell stays at the standard 4.2V or 4.35V termination programmed via I²C. Fault protection includes over-current and over-temperature shutdown, which prevents runaway if the cell or adapter is shorted.

Active production — no end-of-life concerns

ROHS3 compliant, so it passes EU and global environmental requirements without exemption paperwork.

Package and footprint — 24-WFQFN with exposed pad

Supplied in a 24-WFQFN exposed pad package (4x4 mm, 0.50 mm pitch). The supplier device package is 24-WQFN (4x4).

Frequently asked questions

Does BQ25896RTWR support I²C programming?

Yes, the charge current, termination voltage, safety timer, and other parameters are set through the I²C interface. Default settings are defined in the datasheet; the host MCU must write the desired configuration after power-up.

Is BQ25896RTWR compatible with 2-cell batteries?

No, this charger is designed for a single Li-ion or Li-polymer cell (1-cell). For 2-cell applications, look at the BQ2589x family or other multi-cell chargers from TI.

What is the difference between BQ25896 and BQ25895?

The BQ25896 and BQ25895 are pin-compatible siblings in the MaxCharge family. The primary difference is the I²C register map and default charge parameters — the BQ25896 targets higher charge current (3A) and different termination thresholds. Check the respective datasheets for the exact register differences.