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Texas Instruments BQ24205DGN — Power Management (PMIC / Gate Driver)

BQ24205DGN Li-Ion Battery Charger IC, 500mA Max, 8-HVSSOP

MPNBQ24205DGN
Active

Texas Instruments BQ24205DGN, Li-Ion/Polymer battery charger IC, 1-cell, 500mA max charge current, 4.1V battery pack voltage, 13.5V max supply, -40°C to 125°C, 8-HVSSOP package, Tube.

$6.8400Ref. price · indicative, final on quote
Texas Instruments BQ24205DGN datasheet (PDF)
Packaging8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

BQ24205DGN specifications
ParameterValue
MountingSurface Mount
Battery pack voltage4.1V
Voltage13.5V
Current - chargingConstant
Charge current - max500mA
Operating temperature-40°C~125°C(TJ)
PackageTube
Case8-TSSOP, 8-MSOP (0.118\", 3.00mm Width) Exposed Pad
Number of cells1
Fault protectionOver Temperature, Short Circuit
Battery chemistryLithium Ion/Polymer
Programmable featuresCurrent, Timer

Product details

Single-cell Li-Ion linear charger with integrated pass device

The Texas Instruments BQ24205DGN is a linear battery charger IC designed for single-cell Lithium-Ion and Lithium-Polymer battery packs. It integrates a power FET and current-sense resistor in a compact 8-HVSSOP package, requiring minimal external components for a dedicated charging solution in portable devices, handheld instruments, and IoT endpoints. Built-in fault protection covers over-temperature and short-circuit conditions, safeguarding both the charger and the battery during abnormal operation.

Package and footprint: 8-HVSSOP with exposed pad

Housed in an 8-pin HVSSOP with exposed pad, the BQ24205DGN occupies a small board footprint — roughly 3mm x 3mm body. Surface-mount assembly is standard for this package.

No end-of-life notification or last-time-buy schedule is in effect as of the latest available records.

Frequently asked questions

What is the maximum charge current for BQ24205DGN?

The maximum charge current is 500mA, set by an external resistor. This is the constant-current phase limit; the actual charge current in the constant-voltage phase tapers as the battery approaches 4.1V.

What is the closest pin-compatible alternative to BQ24205DGN?

Texas Instruments offers several single-cell linear charger ICs in similar packages, but a direct pin-compatible equivalent is not listed in the available cross-reference data. Check the BQ2420x family datasheet for variants with different charge current or termination voltage options that may share the same footprint.