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Texas Instruments BQ24726RGRR — Power Management (PMIC / Gate Driver)
Texas Instruments

BQ24726RGRR Li-Ion Battery Charger IC, I²C, 1–4 Cells

MPNBQ24726RGRR
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Texas Instruments BQ24726RGRR Li-Ion battery charger IC, I²C-controlled, 1–4 cells, 19.2V max pack voltage, constant programmable charge current, over-current/over-voltage/short-circuit protection, 20-VFQFN exposed pad package, 0°C–125°C junction temperature.

$6.2300Ref. price · indicative, final on quote
BQ24726RGRR datasheet
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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.
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Specifications

BQ24726RGRR Technical Specifications
ParameterValue
Mounting typeSurface Mount
Battery pack voltage19.2V (Max)
Voltage24V
Current - chargingConstant - Programmable
InterfaceI²C
Operating temperature0°C~125°C(TJ)
PackageTape & Reel (TR)
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 programmability

The Texas Instruments BQ24726RGRR is a Li-Ion battery charger IC designed for 1 to 4 series cells, with a maximum battery pack voltage of 19.2V. An I²C interface allows the host microcontroller to program charge current and voltage, making it suitable for multi-chemistry or multi-cell systems where the charging profile must be adjusted dynamically. Integrated fault protection covers over-current, over-voltage, and short-circuit conditions, reducing external component count and simplifying the safety design.

Frequently asked questions

How many cells can BQ24726RGRR charge?

The BQ24726RGRR supports charging 1 to 4 series Li-Ion cells, with a maximum battery pack voltage of 19.2V.

What fault protections does BQ24726RGRR have?

The BQ24726RGRR integrates over-current, over-voltage, and short-circuit protection, eliminating the need for external comparators or supervisory circuits.

What is the difference between BQ24726RGRR and BQ24725?

The BQ24726 is a pin-compatible variant within the same family; the primary difference lies in the I²C register map and charge voltage set-point resolution. For exact register differences, refer to the respective datasheets. Both parts share the same package and pinout, so a board swap is possible with firmware changes.