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Texas Instruments BQ24726RGRT — Power Management (PMIC / Gate Driver)
Texas Instruments

BQ24726RGRT Li-Ion Battery Charger, I²C, 1-4 Cells, Obsolete

MPNBQ24726RGRT
Obsolete

Texas Instruments BQ24726RGRT, SMBus/I²C battery charger, 1-4 Li-ion cells, 19.2V max pack voltage, 24V supply max, 20-VQFN 3.5x3.5 mm package, surface mount.

$4.6100Ref. price · indicative, final on quote
BQ24726RGRT datasheet
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

BQ24726RGRT Technical Specifications
ParameterValue
Mounting typeSurface Mount
Battery pack voltage19.2V (Max)
Voltage24V
Current - chargingConstant - Programmable
InterfaceI²C
Operating temperature0°C~125°C(TJ)
PackageBulk
Case20-VFQFN Exposed Pad
Number of cells1 ~ 4
Fault protectionOver Current, Over Voltage, Short Circuit
Battery chemistryLithium Ion

Product details

1–4 cell Li-ion charger with I²C control

The TI BQ24726RGRT is a host-controlled battery charger for 1 to 4 series Li-ion cells, communicating over an I²C/SMBus interface. It handles a maximum battery pack voltage of 19.2 V and accepts a supply up to 24 V. The charging current is constant and programmable via the bus.

Fault protection and package

On-chip fault protection covers over-current, over-voltage, and short-circuit conditions, reducing the need for external supervisory circuitry.

Obsolete — sourced to order

TI lists the BQ24726RGRT as obsolete.

Frequently asked questions

Can BQ24726RGRT charge a 4-cell lithium battery?

Yes. The BQ24726RGRT supports 1 to 4 series Li-ion cells, with a maximum battery pack voltage of 19.2 V. A 4-cell pack at 4.2 V per cell (16.8 V nominal) is well within its range.

What is the difference between BQ24726RGRT and BQ24725RGRT?

Both are SMBus/I²C Li-ion chargers in similar VQFN packages. The BQ24726 supports a higher maximum battery pack voltage (19.2 V vs 18.04 V for the BQ24725), which makes it the better fit for 4-cell designs. Always compare the full datasheet before substituting.