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Texas Instruments BQ24400DG4 — Power Management (PMIC / Gate Driver)
Texas Instruments

BQ24400DG4 Multi-Chemistry Battery Charger Controller

MPNBQ24400DG4
End of Life

Texas Instruments BQ24400DG4 multi-chemistry battery charge controller, 8-SOIC surface mount, 6V max supply, -20 to 70°C operating temperature, programmable timer and voltage.

BQ24400DG4 datasheet
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MOQ1 pcs
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Specifications

BQ24400DG4 Technical Specifications
ParameterValue
Mounting typeSurface Mount
Voltage6V
Operating temperature-20°C~70°C(TA)
PackageTube
Case8-SOIC (0.154\", 3.90mm Width)
Battery chemistryMulti-Chemistry
Programmable featuresTimer, Voltage

Product details

Multi-chemistry charge controller in an 8-SOIC

The Texas Instruments BQ24400DG4 is a multi-chemistry battery charge controller designed for charging NiCd, NiMH, and Li-Ion cells. It integrates the charge termination logic and a programmable timer and voltage setpoint into a single 8-SOIC package, reducing external component count for a dedicated charger circuit.

6V supply ceiling and programmable termination

The device operates from a supply up to 6 V, which sets the input voltage headroom for the charging pass element. The programmable timer and voltage features let you tailor the charge termination to the specific cell chemistry — a key parameter for preventing overcharge in NiMH or Li-Ion packs. The 8-SOIC footprint with 0.154-inch body width is a standard outline that routes easily on a two-layer board.

Frequently asked questions

Can BQ24400DG4 charge Li-ion batteries?

Yes, the BQ24400DG4 supports multi-chemistry charging including Li-ion. The programmable timer and voltage features allow you to set the appropriate charge termination thresholds for Li-ion cells.

What is the BQ24400DG4 charging current?

The evidence does not specify a charging current rating for the BQ24400DG4. The device is a charge controller that drives an external pass element; the actual charge current depends on the external transistor and sense resistor selected.