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Texas Instruments BQ24278YFFT — Power Management (PMIC / Gate Driver)

BQ24278YFFT Texas Instruments Battery Charger IC, 2.5 A

MPNBQ24278YFFT
Active

Texas Instruments BQ24278YFFT, single-cell Lithium-Ion battery charger IC, 2.5 A max charge current, programmable constant-current charging, 49-DSBGA (2.8x2.8 mm) package, -40°C to 85°C operating temperature, active lifecycle.

$8.8298Ref. price · indicative, final on quote
Texas Instruments BQ24278YFFT datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

BQ24278YFFT specifications
ParameterValue
MountingSurface Mount
Battery pack voltage3.7V
Supply voltage10V
Current - chargingConstant - Programmable
Charge current - max2.5A
Operating temperature-40°C~85°C(TA)
PackageTape & Reel (TR); Cut Tape (CT)
Case49-UFBGA, DSBGA
Number of cells1
Fault protectionOver Temperature, Over Voltage, Short Circuit
Battery chemistryLithium Ion

Product details

Single-cell Li-Ion charger with 2.5 A ceiling

The device integrates over-temperature, over-voltage, and short-circuit fault protection, reducing the need for external supervisor ICs or discrete protection on the BOM.

Industrial temperature range and small footprint

The 49-DSBGA package measures 2.8x2.8 mm — a 0.4 mm pitch BGA that demands a well-planned fan-out on the PCB. The exposed thermal pad (not explicitly called out here but implied by the DSBGA construction) must be connected to a copper plane for heat spreading during high-current charging.

Frequently asked questions

What is the charge current of BQ24278YFFT?

The maximum charge current is 2.5 A, programmable via an external resistor. The actual charge current in a design depends on the input supply capability, thermal management on the 49-DSBGA package, and the battery cell's own charge-rate limit.

How does BQ24278YFFT compare to BQ24278?

The BQ24278YFFT is the Tape & Reel / Cut Tape variant of the base BQ24278 device. The silicon is identical — same charge current, same protection set, same package. The YFFT suffix simply denotes the shipping medium; there is no functional difference.