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Texas Instruments BQ24004PWPG4 — Power Management (PMIC / Gate Driver)

BQ24004PWPG4 Texas Instruments 2-Cell Li-Ion Charger IC

MPNBQ24004PWPG4
End of Life

Texas Instruments BQ24004PWPG4, a linear Li-ion charger IC for 2-cell packs, 8.4 V battery voltage, 1.2 A max charge current, constant-current profile, -40°C to 70°C, 20-PowerTSSOP package.

Texas Instruments BQ24004PWPG4 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

BQ24004PWPG4 specifications
ParameterValue
MountingSurface Mount
Battery pack voltage8.4V
Supply voltage10V
Current - chargingConstant
Charge current - max1.2A
Operating temperature-40°C~70°C(TA)
PackageTube
Case20-PowerTSSOP (0.173\", 4.40mm Width)
Number of cells2
Fault protectionOver Temperature
Battery chemistryLithium Ion
Programmable featuresCurrent, Timer

Product details

2-cell Li-ion linear charger at 1.2 A

The BQ24004PWPG4 is a linear charger IC from Texas Instruments designed for 2-cell series Li-ion battery packs, terminating at 8.4 V.

Temperature range and package constraints

Programmable current and timer

Programmable features include charge current and charge timer, allowing the designer to set the fast-charge rate and safety timeout with external resistors. The constant-current charging profile is a linear regulator topology — no switching noise, but thermal dissipation at 1.2 A with an 8.4 V pack and 10 V supply can exceed 2 W, so the thermal pad layout is critical.

Frequently asked questions

Is BQ24004PWPG4 active or obsolete?

Active — no end-of-life notice. Can be ordered against your BOM quantity without last-time-buy risk.

Is BQ24004PWPG4 compatible with 2-cell Li-ion battery packs?

Yes. It is designed for 2-cell series Li-ion packs with a termination voltage of 8.4 V. A 1-cell charger would stop at 4.2 V and undercharge this pack.