Skip to main content
Log in
Texas Instruments BQ24721RHBRG4 — Power Management (PMIC / Gate Driver)

BQ24721RHBRG4 Battery Charger IC, 3–4 Cell, I²C, Obsolete

MPNBQ24721RHBRG4
Obsolete

Texas Instruments BQ24721RHBRG4, Multi-Chemistry Battery Charger IC, 3–4 Cells, I²C Interface, 19.2V Max Pack Voltage, 24V Supply Max, 32-VFQFN Exposed Pad, -40°C to 85°C.

$4.0000Ref. price · indicative, final on quote
Texas Instruments BQ24721RHBRG4 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

BQ24721RHBRG4 specifications
ParameterValue
MountingSurface Mount
Battery pack voltage19.2V (Max)
Supply voltage24V
InterfaceI²C
Operating temperature-40°C~85°C(TA)
PackageTape & Reel (TR)
Case32-VFQFN Exposed Pad
Number of cells3 ~ 4
Fault protectionOver Current
Battery chemistryMulti-Chemistry
Programmable featuresCurrent

Product details

Multi-chemistry charger for 3–4 series cells

The BQ24721RHBRG4 is a multi-chemistry battery charger IC from Texas Instruments designed for 3 to 4 series cells, supporting a maximum battery pack voltage of 19.2V. It communicates over an I²C interface, allowing the system to program charge current dynamically.

I²C programmability and package details

The charger IC is programmable via I²C for charge current, and it accepts a supply voltage up to 24V. It is housed in a 32-VFQFN Exposed Pad package (5x5 mm, supplier device package 32-VQFN), surface-mount, supplied in Tape & Reel.

Frequently asked questions

What is the replacement for BQ24721RHBRG4?

No official replacement or successor is recorded for the BQ24721RHBRG4 on this line. For a pin-compatible alternative, review TI's current battery charger portfolio with I²C control for 3–4 series cells; the BQ24721 base product number may have a newer variant, but no specific order code is listed as a direct drop-in.