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Texas Instruments BQ24257YFFT — Power Management (PMIC / Gate Driver)

BQ24257YFFT single-cell charger IC, NRND, 2A max, I²C/USB

MPNBQ24257YFFT
NRND

Texas Instruments BQ24257YFFT single-cell multi-chemistry battery charger IC, 2A max charge current, I²C and USB interface, over-voltage and over-temperature protection, 30-DSBGA package, -40°C to 85°C operation.

$3.4788Ref. price · indicative, final on quote
Texas Instruments BQ24257YFFT datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

BQ24257YFFT 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)
Case30-UFBGA, DSBGA
Number of cells1
Fault protectionOver Temperature, Over Voltage
Battery chemistryMulti-Chemistry
Programmable featuresTimer

Product details

The BQ24257YFFT: This means the part is in its last procurement window before final obsolescence; new designs should target a replacement, and existing BOM lines should secure last-time-buy quantities or qualify an alternate part.

Single-cell charger with I²C and USB

The BQ24257YFFT is a single-cell, multi-chemistry battery charger IC from Texas Instruments. Communication with a host microcontroller runs over an I²C interface, and the device is compatible with USB charging sources. A programmable timer is the only on-chip feature the user can configure.

Protection and temperature range

Built-in fault protection covers over-temperature and over-voltage conditions, critical for safe single-cell Li-ion charging in portable equipment.

Housed in a 30-ball DSBGA package, this is a surface-mount device. The supplier device package is 30-DSBGA.

Frequently asked questions

What is the replacement for BQ24257YFFT?

No official successor or pin-compatible replacement is listed by Texas Instruments for the BQ24257YFFT. For new designs, review TI's current single-cell charger portfolio with I²C control and comparable charge current. The BQ24257 base product number may have a newer variant — check the TI product folder for the latest recommendations.

What is the maximum charge current for BQ24257YFFT?

The maximum programmable charge current is 2 A. The charge current is constant and programmable via the I²C interface.