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Texas Instruments BQ24261RGET — Power Management (PMIC / Gate Driver)

BQ24261RGET single-cell Li-ion charger, I²C, 3A, 24-VFQFN

MPNBQ24261RGET
Obsolete

Texas Instruments BQ24261RGET single-cell Li-ion battery charger, I²C programmable, 3A max charge current, 24-VFQFN exposed-pad package, -40°C to 85°C.

$3.5300Ref. price · indicative, final on quote
Texas Instruments BQ24261RGET datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

BQ24261RGET specifications
ParameterValue
MountingSurface Mount
Battery pack voltage3.5V
Supply voltage13.2V
Current - chargingConstant - Programmable
Charge current - max3A
InterfaceI²C
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 chemistryLithium Ion
Programmable featuresCurrent

Product details

I²C interface and charge control

The I²C interface lets the host microcontroller set the charge current programmably — the BQ24261RGET accepts a constant-current charge profile that is adjustable via the bus, rather than relying on a fixed resistor. Fault protection covers over-temperature and over-voltage conditions, which is typical for a single-cell charger intended for portable equipment where the battery is close to the charging IC.

Single-cell limitation and battery voltage

This part is designed for a single lithium-ion cell only — the battery pack voltage is 3.5 V nominal, and the supply voltage can go up to 13.2 V, so it can handle USB or higher-voltage input rails. The single-cell constraint is hard; the charger does not support series-cell balancing.

Frequently asked questions

Does BQ24261RGET support I2C communication?

Yes, the BQ24261RGET uses an I²C interface for programmable charge-current control. The host microcontroller communicates over the bus to set the charge current and read fault status.

Can I use BQ24261RGET for a 2-cell battery?

No, it is designed for a single lithium-ion cell only. The battery pack voltage is 3.5 V, and the charger does not support series-cell configurations.