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Texas Instruments BQ24004PWPR — Power Management (PMIC / Gate Driver)

BQ24004PWPR Texas Instruments Li-Ion Charger 2-Cell 1.2A

MPNBQ24004PWPR
Active

Texas Instruments BQ24004PWPR, linear Li-Ion charger IC, 2-cell, 1.2A max charge current, 8.4V battery pack, 20-PowerTSSOP package, active production.

$5.3220Ref. price · indicative, final on quote
Texas Instruments BQ24004PWPR datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

BQ24004PWPR specifications
ParameterValue
MountingSurface Mount
Battery pack voltage8.4V
Supply voltage10V
Current - chargingConstant
Charge current - max1.2A
Operating temperature-40°C~70°C(TA)
PackageTape & Reel (TR)
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 in 20-HTSSOP

The BQ24004PWPR is a Texas Instruments linear charger IC for 2-series-cell lithium-ion packs, delivering a constant-current charge up to 1.2 A and terminating at 8.4 V pack voltage. Housed in a 20-lead PowerTSSOP with an exposed thermal pad (20-HTSSOP), the part relies on good PCB thermal management to sustain the 1.2 A charge rate without hitting the over-temperature fault threshold. The input supply ceiling is 10 V, so a 12 V adapter or higher bus requires a step-down stage ahead of this charger.

Charge current and thermal budget

At 1.2 A max charge current, the linear regulator dissipates (Vin - Vbatt) × Icharge as heat.

Frequently asked questions

How many cells does BQ24004PWPR support?

It charges 2-series cells (2S) at a termination voltage of 8.4 V. It cannot charge a single cell — for 1S applications look at the BQ24003PWPR.

What is the difference between BQ24004PWPR and BQ24004PWP?

The BQ24004PWPR ships on Tape & Reel (TR) for automated assembly; the BQ24004PWP is the same die and package in tube or tray format. Electrical specifications are identical.

What is the maximum charge current for BQ24004PWPR?

The maximum charge current is 1.2 A, set by the constant-current regulation loop. The actual sustained current depends on thermal conditions and input voltage.