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Texas Instruments BQ24032RHLRG4 — Power Management (PMIC / Gate Driver)

BQ24032RHLRG4 Li-Ion Charger IC, 1.5A, bqTINY III, Obsolete

MPNBQ24032RHLRG4
Obsolete

Texas Instruments bqTINY™ III series, BQ24032RHLRG4, single-cell Li-Ion/Polymer linear charger IC, 1.5A max charge current, USB interface, 16V max supply, 20-VFQFN exposed pad package, -40 to 125°C junction temperature.

$58.8000Ref. price · indicative, final on quote
Texas Instruments BQ24032RHLRG4 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

BQ24032RHLRG4 specifications
ParameterValue
SeriesbqTINY™ III
MountingSurface Mount
Battery pack voltage4.2V
Supply voltage16V
Current - chargingConstant - Programmable
Charge current - max1.5A
InterfaceUSB
Operating temperature-40°C~125°C(TJ)
PackageTape & Reel (TR)
Case20-VFQFN Exposed Pad
Number of cells1
Fault protectionOver Temperature, Reverse Current, Short Circuit
Battery chemistryLithium Ion/Polymer
Programmable featuresCurrent, Timer

Product details

Single-cell Li-Ion charger with USB input and 1.5A ceiling

It accepts power from a USB port or a DC adapter up to 16V and delivers a programmable constant charge current with a 1.5A maximum ceiling. The device integrates over-temperature, reverse-current, and short-circuit fault protection, and includes programmable current and timer features for charge management.

Charge current programming and thermal envelope

The charge current is constant and programmable via an external resistor (ISET pin), allowing the designer to set the rate anywhere below the 1.5A maximum.

Frequently asked questions

What is the replacement for BQ24032RHLRG4?

No official replacement or successor order code is recorded for this part. For a pin-compatible alternative within the bqTINY III family, review the BQ24032RHLR variant — the difference is the package tape-and-reel suffix. Confirm the pinout and charge parameters against your BOM before substituting.

What is the charging current of BQ24032RHLRG4?

The maximum charge current is 1.5A. The current is constant and programmable via an external resistor, so the actual charge rate is set below that ceiling by the designer.

What is the difference between BQ24032RHLRG4 and BQ24032RHLR?

The base product number is BQ24032 for both. The 'G4' suffix on BQ24032RHLRG4 indicates a specific tape-and-reel packaging variant. The electrical specifications and package (20-VFQFN) are identical. The 'R' in both denotes the reel packaging orientation.