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Texas Instruments BQ25892RTWT — Power Management (PMIC / Gate Driver)

TI BQ25892RTWT MaxCharge Li-Ion Charger IC, 5A, I²C, 24-WQFN

MPNBQ25892RTWT
Active

Texas Instruments MaxCharge™ series BQ25892RTWT, single-cell Li-Ion/Polymer battery charger IC, 5A max charge current, I²C and USB interface, 14V supply max, 24-WFQFN exposed pad package, -40°C to 85°C operating temperature.

$4.8900Ref. price · indicative, final on quote
Packaging24-WFQFN Exposed Pad
RoHSROHS3 Compliant
SeriesMaxCharge™
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

BQ25892RTWT specifications
ParameterValue
SeriesMaxCharge™
MountingSurface Mount
Supply voltage14V
Charge current - max5A
InterfaceI²C, USB
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

It delivers up to 5 A charge current from a 14 V max input supply, controlled over an I²C interface that also supports USB input detection. The part integrates over-current and over-temperature fault protection, reducing the external component count for a compact charging solution. This is the IC you spec when you need a host-controlled fast charger for a single-cell portable — think power banks, handheld instruments, or any USB-C PD device that wants to charge a 1S pack quickly without a separate power-management MCU.

It is ROHS3 compliant. For a new design, this is a safe choice — no LTB risk in the near term. There is no official second-source alternate in the ledger, but the I²C-controlled single-cell charger space has several functional competitors if dual-sourcing becomes a priority.

Frequently asked questions

Does BQ25892RTWT support I2C communication?

Yes, the BQ25892RTWT uses an I²C interface for host control, along with USB input detection. The host MCU programs charge parameters — current, voltage, input limit — over the I²C bus.

What is the difference between BQ25892RTWT and BQ25892RTWR?

The difference is the packaging and shipping medium. BQ25892RTWT is supplied in Tape & Reel (TR) and Cut Tape (CT) options, while the BQ25892RTWR variant uses a different reel format. The silicon and electrical specifications are identical. Check the reel quantity and tape width for your pick-and-place setup.