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Texas Instruments BQ24257RGET — Power Management (PMIC / Gate Driver)

BQ24257RGET Battery Charger IC, I²C/USB, 2A, NRND

MPNBQ24257RGET
NRND

Texas Instruments BQ24257RGET single-cell battery charger IC, I²C and USB interface, 2 A max charge current, 6.5 V supply max, 24-VQFN exposed pad, -40 to 85 °C.

$4.7200Ref. price · indicative, final on quote
Texas Instruments BQ24257RGET datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

BQ24257RGET specifications
ParameterValue
MountingSurface Mount
Battery pack voltage4.44V (Max)
Supply voltage6.5V
Current - chargingConstant - Programmable
Charge current - max2A
InterfaceI²C, USB
Operating temperature-40°C~85°C(TA)
PackageTape & Reel (TR); Cut Tape (CT)
Case24-VFQFN Exposed Pad
Number of cells1
Fault protectionOver Temperature, Over Voltage
Battery chemistryMulti-Chemistry
Programmable featuresTimer

Product details

Single-cell charger with programmable I²C bus

It supports a maximum charge current of 2 A and a battery pack voltage up to 4.44 V, with programmable timer-based charge termination.

Fault protection and shutdown

On-chip fault protection covers over-temperature and over-voltage events, eliminating the need for external supervisory circuits in most single-cell portable designs.

New production builds should evaluate the current-generation single-cell charger family for a drop-in or layout-compatible replacement.

Frequently asked questions

Is BQ24257RGET obsolete?

It remains available for existing production through independent channels while stock lasts.

Does BQ24257RGET support I²C?

Yes, the BQ24257RGET uses an I²C interface to program charge current, timer settings, and other parameters. A USB input is also supported for direct connection to a USB host or charger.

What is the maximum charge current of BQ24257RGET?

The maximum programmable charge current is 2 A, settable via the I²C bus. The actual current is also limited by the input source capability and thermal conditions.